Relevant bibliographies by topics / Titanomagnetite

Academic literature on the topic 'Titanomagnetite'

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Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "Titanomagnetite"

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Murzin, V. V., G. A. Palyanova, E. V. Anikina, and V. P. Moloshag. "Mineralogy of noble metals (Au, Ag, Pd, Pt) in Volkovskoe Cu-Fe-Ti-V deposit (Middle Urals, Russia)." LITHOSPHERE (Russia) 21, no. 5 (October 31, 2021): 653–59. http://dx.doi.org/10.24930/1681-9004-2021-21-5-643-659.

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Research subject. The mineral compositions of titanomagnetitic (apatite, titanomagnetite) and copper-titanomagnetitic (bornite, chalcopyrite, apatite, titanomagnetite) ores of the Volkovskoe Cu-Fe-Ti-V deposit (Middle Urals, Russia).Methods. The research was carried out using a Jeol JSM-6390LV scanning electron microscope and X-ray spectral microanalyzers JXA-5 (Jeol) at the Geoanalitik Collective Use Center of the IGG UB RAS. Results and conclusions.Native gold (with ≤ 0.3 wt % Pd, 0.2–0.4 wt % Cu; fneness 800–914 ‰), tellurides of Pd, Au and Ag (merenskyite, keithconnite, sylvanite, hessite) and Pt arsenide (sperrylite) were found in the copper-titanomagnetitic ores. For the frst time, two generations of native gold (fneness 1000 and 850–860 ‰) and palladium telluride (keithconnite Pd3-xTe) were detected in titanomagnetitic ores. The sequence of ore mineral formation and the features of their genesis were revealed. Native gold (fneness 1000‰) in the form of microinclusions in titanomagnetite was attributed to the magmatic stage. Noble metal minerals, intergrown with copper sulfdes (bornite, chalcopyrite, digenite) and associated with late hydroxyl-bearing minerals (amphibole, epidote, chlorite), are superimposed in relation to the magmatic minerals (pyroxene, plagioclase, hornblende, apatite, titanomagnetite, ilmenite, etc.) of these ores. Merenskyite, sperrylite, high fneness gold (800–914 ‰), as well as carrolite, cobaltite, copper-cobalt telluride and bismuth tellurium-selenide kawazulite Вi2Te2Se are syngenetic with copper sulfdes. The Au-Ag tellurides were deposited later than these minerals. It is shown that the high fugacity of tellurium, which binds Pd, Au, and Ag into tellurides, prevents the occurrence of native gold containing high concentrations of palladium and silver.
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Atmadzhidi, A. S., and K. V. Goncharov. "The complex processing of titanomagnetite concentrates of the Gremyakha-vyrmes deposit with extraction of vanadium and titanium." Transaction Kola Science Centre 12, no. 2-2021 (December 13, 2021): 24–25. http://dx.doi.org/10.37614/2307-5252.2021.2.5.005.

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Titanomagnetites are a complex raw material with a high content of valuable components: iron (35–65 %), vanadium (0.5–1.5 %) and titanium (2–14 %). Today, titanium–magnetite concentrates are processed in two ways: blast furnace (Russia, China) and using electric smelting (South Africa). The blast–furnace method is applicable only for low–titanium titanomagnetites. In the case of using titanomagnetite concentrates with a titanium dioxide content of more than 4 %, the method of electric smelting with preliminary reduction is applicable. Both technologies aim to recover the two components iron and vanadium, while titanium is not recovered. In this regard, the development of a complex technology for processing titanomagnetite concentrate to obtain iron in granular form, vanadium pentoxide and titanium is urgent.
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Agamirova, Alexandra S., Konstantin V. Goncharov, and Guseyn B. Sadykhov. "The complex processing of titanomagnetites with a high content of titanium dioxide." Transactions of the Kоla Science Centre of RAS. Series: Engineering Sciences 13, no. 1/2022 (December 27, 2022): 13–16. http://dx.doi.org/10.37614/2949-1215.2022.13.1.001.

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Titanomagnetites are a complex raw material with a high content of valuable components: iron (35–65 %), vanadium (0.5–1.5 %) and titanium (2–14 %). Today, titanium-magnetite concentrates are processed in two ways: blast furnace (Russia, China) and using electric smelting (South Africa). The blast-furnace method is applicable only for low-titanium titanomagnetites. In the case of using titanomagnetite concentrates with a titanium dioxide content of more than 4 %, the method of electric smelting with preliminary reduction is applicable. Both technologies aim to recover the two components (iron and vanadium), while titanium is not recovered. In this regard, the development of a complex technology for processing titanomagnetite concentrate to obtain iron in granular form, vanadium pentoxide and titanium, is urgent.
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Medyanik, N., A. Smirnova, L. Kolyada, and Yu Bessonova. "STUDY OF POSSIBILITY OF VANADIUM AND TITANIUM CHEMICAL EXTRACTION FROM TITANOMAGNETITE ORE IRON CONCENTRATE." TRANSBAIKAL STATE UNIVERSITY JOURNAL 28, no. 7 (2022): 44–51. http://dx.doi.org/10.21209/2227-9245-2022-28-7-44-51.

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The metallurgical industry is experiencing certain difficulties in the raw material segment of ferrous metals due to the depletion of highly liquid target iron ores reserves, the alternative of which are titanomagnetites. In addition, the demand for vanadium and titanium is increasing on the world market, the absolute part of the world stock of which also falls on titanomagnetite ore. Complex processing of titanomagnetite ores provides for production of not only iron concentrate, but also vanadium and titanium present in it. In this regard, the relevance of research lies in the need for deep complex processing of titanomagnetites and their enrichment products. The object of the study was iron concentrate of titanomagnetite ore from the Volkovsky deposit. Due to the isomorphism of vanadium with iron and the extremely thin integration of titanium into magnetite grains, the purpose of this investigate was to study the possibility of vanadium and titanium chemical extraction from titanomagnetite ore iron concentrate. The authors have analyzed the features of the chemical and mineralogical composition of iron concentrate. Granulometric, X-ray diffraction, X-ray fluorescence analyses are used in the work. The feasibility of complex processing of iron concentrate in order to extract not only iron from it, but also such valuable components as vanadium and titanium by acid leaching has been proved. It has been experimentally established that it is possible to extract vanadium into solution and concentrate titanium in the cake by acid leaching of iron concentrate. The highest percentage of vanadium extraction (68.31%) is achieved by leaching with 30% hydrochloric acid at a temperature of 92-98 °C. It has been established that titanium is not extracted into the solution, but is concentrated in the cake, however, titanium dioxide is partially dissolved when hot sulfuric acid is used. Thus, it was proved that, it is preferable to use solutions of hydrochloric acid, rather than sulfuric acid for the selective separation of titanium and vanadium, due to the dissolution of titanium dioxide in hot sulfuric acid
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Molchanov, V. P., A. A. Yudakov, and M. A. Medkov. "Study of the possibilities of technology of complex extraction of useful components from coastal-sea placers of Primorye with application of methods of pyro-hydrometallurgy." Proceedings of the Voronezh State University of Engineering Technologies 81, no. 3 (December 20, 2019): 242–48. http://dx.doi.org/10.20914/2310-1202-2019-3-242-248.

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Intensive exploitation of placer gold deposits in Primorye led to the depletion of their geological reserves, which was reflected in a sharp decrease in the production of precious metals. An alternative source of precious metals is the never before exploited placer deposits of the Primorsky shelf, which have concentrated a significant amount of gold and titanomagnetite. The importance of gold as the basis of the economic security of our country can hardly be overestimated. Titanomagnetites are solid solutions of titanium dioxide in magnetite containing a rich gamut of impurities V, Cr, Zr and other alloying elements. Russia has gained vast experience in processing gold-bearing ores, but the problem of developing gold-titanomagnetite coastal-marine placers has not yet been solved. The objectives of our research included assessing the possibilities of industrial processing of metal-bearing sands of the Rudnev Bay of the Sea of Japan using pyro-hydrometallurgy and fluoride opening methods. For this, a four-stage scheme for the extraction of useful components was developed. In the first of them, the initial sands underwent gravitational enrichment, followed by separation by electromagnetic separation into magnetic and non-magnetic fractions. In the second stage, the magnetic material represented by titanomagnetite underwent fine grinding, reduction firing in hydrogen, and sintering of the powder material. In the third stage, non-magnetic components, which include the bulk of gold and zircon, served as the feedstock for exposure to a thiocarbamide-thiocinate solution. In the fourth stage, the insoluble cake concentrating zircon was fluorinated with ammonium bifluoride. The use of this scheme for processing metal-bearing sands made it possible to extract native gold, zirconium concentrate and iron powders of various fineness.
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Baboshko, Dmytro, Levan Saithareiev, Hennadiy Hubin, Oksana Vodennikova, and Ihor Skidin. "Researching of physicochemical and structural-phase transformations in carbothermal titanomagnetite concentrates reduction for sustainable development of raw materials base of metallurgical enterprises." E3S Web of Conferences 166 (2020): 06011. http://dx.doi.org/10.1051/e3sconf/202016606011.

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This study displays results of carbothermal reduction researches of titanоmagnetite concentrate obtained during complex apatite-titanomagnetite-ilmenite ore dressing. The mineral composition was analyzed and the structural and textural features of the titaniferous ore of Kropivensky deposit and the titanomagnetite concentrate obtained from it were revealed. The mechanism of solid-phase carbothermal the titanomagnetite concentrate reduction is investigated. Temperature-time parameters have been discovered to ensure the formation of both products with the maximum yields of iron and titania from metal and slag-phase during titanomagnetite concentrate reduction. One-stage resource-saving flow chart of titanomagnetite concentrate processing with mass fraction up to 25% TiO2 is developed.. It allows to obtain two marketable products: granular cast iron (92-96.5% Fe, 3.4-3.7% C, 0.5% V) in 57% yield and titaniferous slag (50-55% TiO2, up to 7.4% FeO) in 43% yield.
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Xu, Zhi-Hao, Zong-Feng Yang, Xiu-Hui An, Rui Xu, and Jun-Nan Qi. "Relationship between the Texture and Composition of Titanomagnetite in Hannuoba Alkaline Basalt: A New Geospeedometer." Minerals 12, no. 11 (November 7, 2022): 1412. http://dx.doi.org/10.3390/min12111412.

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The nucleation and growth of crystals in igneous rocks is usually thought to occur under thermodynamic equilibrium conditions. However, recent studies on igneous textures and mineral compositions have shown that these processes probably occur under thermodynamic disequilibrium conditions. Titanomagnetite with variable crystal sizes can be observed in Hannuoba alkaline basalt, indicating disequilibrium crystallization processes (different cooling rates). The ratio of the maximum particle size to the area abundance of titanomagnetite, as determined by an analysis of previous studies on the texture of minerals, was negatively correlated with the apparent cooling rate. We analyzed the chemical composition and crystal size distribution of titanomagnetite in ten Hannuoba alkaline basalt samples to determine the connection between the apparent cooling rate and titanomagnetite composition. In Hannuoba samples, the cooling rate was found to affect cationic substitution in the titanomagnetite solid solution, and an increase in cooling rate led to a decrease in Ti4+ and an increase in Fe3+. The partition coefficient of Ti between titanomagnetite and the melt (DTi) is negatively correlated with the apparent cooling rate. These findings are consistent with those in experimental petrology and help us propose a better, more general geospeedometer. The cooling rate also impacted Mg2+ and Al3+, but they were more impacted by the melt composition and crystallinity of the coexisting melt. Therefore, a new geospeedometer was calibrated by considering the titanomagnetite composition, melt composition and the content of the clinopyroxene.The cooling rates of the Hannuoba basalt samples measured using the new geospeedometer calibrated in this study range from 0.7 to 7.0 (±0.5) °C/min. It cannot accurately predict the cooling rate from titanomagnetite in intermediate rock, felsic rock or Fe-rich basaltic melts. The new titanomagnetite geospeedometer can better measure the cooling rate of alkaline basalt and may help identify the effects of kinetically controlled crystallization on isotope fractionation, evaluate mineral thermobarometers and better recognize thermal remanence magnetization and ancient magnetic fields.
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Yu, Wen, Xiaojin Wen, Wei Liu, and Jiangan Chen. "Carbothermic Reduction and Nitridation Mechanism of Vanadium-Bearing Titanomagnetite Concentrate." Minerals 11, no. 7 (July 5, 2021): 730. http://dx.doi.org/10.3390/min11070730.

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In this study, the carbothermic reduction and nitridation mechanism of vanadium-bearing titanomagnetite concentrate are investigated in terms of phase transformation, microstructure transformation, and thermodynamic analyses. The differences in the reaction behavior of titanomagnetite and ilmenite in vanadium-bearing titanomagnetite concentrate, as well as the distribution characteristic of V in the roasted products, are emphatically studied. It is observed that the reaction sequences of titanomagnetite and ilmenite transformations into nitride are as follows: Fe3−xTixO4→Fe2TiO4→FeTiO3→M3O5→(Ti, V)(N, C); FeTiO3→M3O5→Ti(N, C). The reduction of M3O5 to TiN is the rate-limiting step of the entire reaction, and metal iron is an important medium for transferring C for the reduction of M3O5. Titanomagnetite is faster to convert into nitride than ilmenite is, and the reasons for this are discussed in detail. During the entire roasting process, V mainly coexists with Ti and seems to facilitate the conversion of titanium oxides into (Ti, V)(N, C).
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Jensen, Aage. "Cupriferous pseudobrookite in a Tertiary basalt from the Faeroe Islands." Bulletin of the Geological Society of Denmark 34 (December 19, 1985): 87–95. http://dx.doi.org/10.37570/bgsd-1985-34-09.

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Forty-five electron microprobe analyses have been carried out on pseudobrookite occurring in a basalt from the Faeroe Islands. It is shown that pseudobrookite formed after ilmenite contains between 1 and 3% CuO, whereas pseudobrookite formed after titanomagnetite does not contain Cu. This difference in Cu content is not inherited from the original ilmenite and titanomagnetite, but arises during the formation of the pseudobrookite. The pseudobrookite in this basalt, regardless of whether it formed from ilmenite or from titanomagne­tite, is richer in Ti than in the formula Fe2TiO5, the surplus Ti4+ being balanced by the presence of divalent ions such as Mg, Mn, Fe and Cu. Mg and Cu dominate in pseudobrookite after ilmenite, Fe and Mg domi­nate in pseudobrookite after titanomagnetite. Pseudobrookite after titanomagnetite is richer in Ti than pseudobrookite after ilmenite. The pseudobrookite is not homogeneous. Both pseudobrookite formed from ilmenite and that formed from titanomagnetite contain small blebs of hematite and rutile, and furthermore pseudobrookite after ti­tanomagnetite is intergrown with larger coherent areas of hematite. The hematite blebs in pseudobrookite after ilmenite can contain up to more than 5% CuO, but there is virtually no copper in either type of he­matite in the pseudobrookite after titanomagnetite, nor do the rutile blebs contain copper.
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GORBATOVA, Elena Aleksandrovna. "Determination of the possibility of separation of titanomagnetite and ilmenite in the selective separation of titanomagnetite ores." NEWS of the Ural State Mining University 1, no. 1 (March 23, 2020): 140–49. http://dx.doi.org/10.21440/2307-2091-2020-1-140-149.

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Experience in the development of iron-titanium ores has shown that their successful processing is possible only with the use of complex combined processing schemes. The possibility of selective extraction of titanomagnetite and ilmenite products during magnetic (electromagnetic) separation is considered during processing of altered disseminated titanomagnetite ores of the Medvedevsky deposit. Purpose of the research is to determine the possibility of separation of microaggregates of titanomagnetite and ilmenite during selective magnetic (electromagnetic) separation of disseminated titanomagnetite ores. Materials and methods. Classification of crushed material with its subsequent separation by magnetic (electromagnetic) properties. Analysis of the distribution of iron and titanium dioxide and the identification of the nature of the disclosure of ore and non-metallic minerals from the standpoint of technological mineralogy. Results. Products of classified ore after magnetic (electromagnetic) separation are characterized by uneven distribution. Most of the material (45,01%) is concentrated in fractions separated at a magnetic field with strength of more than 250 mT. The yield of magnetic fraction is 2,89%. A high content of Femagnetic is characteristically for the products of magnetic separation of titanomagnetite ore obtained at the magnetic field with strength of 10 mT. Generally, titanium dioxide is concentrated in the products of electromagnetic separation separated at a magnetic field with strength of 140 mT. Studies have established that the products obtained at H = 10 mT consist of 37% titanomagnetite aggregates of varying degrees of martitization. With increasing of magnetic field strength, the number of titanomagnetite grains decreases and the content of ilmenite grains increases in the products of electromagnetic separation. In this case at H = 140 mT, free grains (55%) are mainly consist of ilmenite. Conclusions. Analysis of the magnetic separation products showed that with a magnetic field strength of 10 mT it is possible to obtain a product with mainly titanomagnetite composition, and it is possible to obtain a product with mainly ilmenite composition with a magnetic field strength of 140 mT.
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Dissertations / Theses on the topic "Titanomagnetite"

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Brown, Andrew Paul. "Synthetic titanomagnetite : the effect of ball-milling, maghemitization and inversion." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388658.

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Longbottom, Raymond James Materials Science &amp Engineering Faculty of Science UNSW. "The formation of cementite from hematite and titanomagnetite iron ore and its stability." Awarded by:University of New South Wales. Materials Science and Engineering, 2005. http://handle.unsw.edu.au/1959.4/22023.

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This project examined the reduction and formation of cementite from hematite and titanomagnetite ores and cementite stability. The aim of the project was to develop further understanding of cementite stability under conditions relevant to direct ironmaking and the mechanism of cementite decomposition. The reduction of hematite and ironsand by hydrogen-methane-argon gas mixtures was investigated from 600??C to 1100??C. Iron oxides were reduced by hydrogen to metallic iron, which was carburised by methane to form cementite. The hematite ore was reduced more quickly than the ironsand. Preoxidation of the ironsand accelerated its reduction. Hematite was converted to cementite faster than preoxidised ironsand. The decomposition of cementite formed from hematite was investigated from 500??C to 900??C. This cementite was most stable at temperatures 750-770??C. The decomposition rate increased with decreasing temperature between 750??C and 600??C and with increasing temperature above 770??C. The stability of cementite formed from pre-oxidised titanomagnetite was studied from 300??C to 1100??C. This cementite was most stable in the temperature range 700-900??C. The rate of decomposition of cementite increased with decreasing temperature between 700??C and 400??C and with increasing temperature above 900??C. Cementite formed from ironsand was more stable than cementite formed from hematite
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Newell, Andrew James. "Theoretical calculations of magnetic hysteresis and critical sizes for transitions between single-domain and multi-domain properties in titanomagnetites /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/6842.

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Hoisé, Eva. "Contribution a l'etude du message magnetique porte par la lithosphere oceanique : l'altération des mineaux magnétiques - les anomalies magnétiques de haute résolution." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112142/document.

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Cette thèse concerne l’étude du message magnétique de la lithosphère océanique. Nous nous sommes, dans un premier temps, intéressés à l’évolution du signal magnétique à travers une section de croûte océanique complète et continue des basaltes jusqu’aux gabbros. Le but était de comprendre comment les propriétés magnétiques des roches peuvent nous renseigner sur les conditions d’altération dans la croûte océanique. Nous avons donc établi un jeu de données magnétiques (température de Curie, paramètres d’hystérésis, mesures magnétiques basse température) sur l’ensemble de la section de croûte océanique forée au site IODP 1256D, dans l’océan Pacifique. Ces données sont confrontées aux températures d’altération, établies par thermo barométrie et mettent en évidence une étroite relation entre l’altération des phases magnétiques et les températures d’altération. De plus, des analyses semi-quantitatives et des observations microscopiques (optique, MEB et MET) mettent en évidence un changement de structure cristalline, associée à une perte de titane, permettant la formation d’une phase secondaire, l’hydroschorlomite, dans un intervalle de forte altération des phases magnétiques (entre 670 et 1028 mbsf (meters below sea floor)). Dans un second temps, l’acquisition de profils d’anomalies magnétiques marines de surface et d’un profil d’anomalies de fond « deep tow » à travers le superchron du Crétacé (entre 83 et 120 Ma) nous a permis de tester la stabilité de polarité du champ géomagnétique durant cette période. Nous mettons en évidence la présence d’anomalies magnétiques : des anomalies de courtes longueurs d’onde ou « tiny-wiggles » à travers l’ensemble du superchron et des anomalies magnétiques de plus grande longueur d’onde, assimilables à de courts intervalles de polarité inverse. Nos mesures montrent que le comportement du champ magnétique durant le superchron n’est pas différent des périodes qui le précèdent (chrons M0-M1-M2) et le suivent (chrons 33n et 33r). La définition de superchron doit être remise en question
So we, in a first part, studied the evolution of the magnetic signal through a section of a, complete and continuous, oceanic crust, from basalts to gabbros. In order to understand how the magnetic properties of rocks can tell us about the conditions of alteration in the oceanic lithosphere, we established a set of magnetic data (Curie temperature, hysteresis parameters, low temperature magnetic measurements) through the entire section of the oceanic crust, drilled at IODP Site 1256D, in the Equatorial Pacific Ocean. These magnetic data are compared to alteration temperatures, determined by thermobarometry (Alt et al., 2010) and show a close relationship between the alteration of the magnetic phases and the alteration temperatures, including the identification of an interval of strong alteration of the titanomagnetites (between 670 and 1028 mbsf (meters below sea floor). In addition, semi quantitative chemical analysis and microscopic observations (optical, SEM and TEM), performed on titanomagnetites, show a change in crystalline structure and a loss of titanium element (Ti4 +) in titanomagnetites to form a secondary phase rich in titanium, in this same interval of strong alteration. In a second part, the acquisition of numerous sea-surface magnetic profiles and a high resolution magnetic profile ("deep tow") through the Cretaceous Normal Superchron (83-120 Ma), allowed us to test the stability of the geomagnetic polarity of the superchron and to highlight the presence of numerous magnetic anomalies: anomalies of short wavelength or "tiny-wiggles” through the entire period and magnetic anomalies of greater length wave, similar to short intervals of reverse polarity. Our measurements show that the behavior of the magnetic field during the superchron is no different from previous periods (chrons M0-M1-M2) and the following magnetic period (chrons 33n and 33R) and the definition of ‘superchron’, long geomagnetic event without inversions, must be questioned
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Сушников, Д. В., and D. V. Sushnikov. "Исследование состояния футеровки и гарнисажного слоя доменных печей большого объема, перерабатывающих ванадийсодержащие титаномагнетиты : магистерская диссертация." Master's thesis, б. и, 2021. http://hdl.handle.net/10995/103664.

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Целью исследовательской работы является определение химического состава, определение теплофизических свойств проб гарнисажного слоя и футеровки доменной печи №6 АО «ЕВРАЗ НТМК», определение механизмов образования гарнисажного слоя и коррозии огнеупорной футеровки.
The purpose of the research work is to determine the chemical composition, determine the thermophysical properties of samples of the bottom layer and lining of the blast furnace No. 6 of EVRAZ NTMK JSC, and determine the mechanisms of formation of the bottom layer and corrosion of the refractory lining.
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Longbottom, Raymond James. "The formation of cementite from hematite and titanomagnetite iron ore and its stability /." 2005. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20050816.115047/index.html.

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Mayor, Gonzalez Luis Alberto. "Contribuição para o estudo de utilização de titanomagnetite de Tete: dimensionamento de reactor de pré redução." Doctoral thesis, 2006. http://hdl.handle.net/1822/6278.

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A titanomagnetite, minério formado por óxidos de ferro (Fe) e titânio (Ti), tem como minerais úteis ilmenite, magnetite e hematite, e pode ser utilizada para produção de gusa, escórias titaníferas e, quando o teor e/ou preço de vanádio (V) o justificarem, de escórias vanadíferas. O processamento metalúrgico é feito em fornos eléctricos de redução. O consumo de energia pode ser parcialmente diminuído pré-reduzindo o minério em forno rotativo. Se o minério for fino, pode convir peletizá-lo antes da pré redução. No Complexo Gabro Anortosítico de Tete, Moçambique, há muitos afloramentos deste minério, em geral pequenos, formados por um corpo de minério maciço rodeado de auréola de minério eluvionar. O teor de Vanádio, sem ser elevado, pode interessar num sub produto, em particular se acumulado para eventuais anos de alta de preços. Os estudos para a sua utilização diferem nas conclusões, devido à complexidade resultante da dispersão de ocorrências e da variação de qualidade entre elas. Sendo um minério triplo (gusa, escória de Ti e escória de V), o projecto insere-se em mercados diferentes e, no caso do Vanádio, com grandes variações de preço. O actual trabalho pretende contribuir para o seu estudo, no que respeita à pré-redução no forno rotativo. Não havendo peletes industriais destes concentrados, foi necessário estudar a beneficiação (preparação de concentrados) e peletização (aglomeração dos mesmos), de modo a partir de materiais que correspondam aos que seriam obtidos industrialmente. Na beneficiação estudou-se ainda como estimar o valor dos concentrados pelo preço retrocalculado, em função da sua composição, e obteve-se um concentrado ilmenítico, com 31% TiO2, 46% Fet e 6%Ganga (o que permite obter gusa e escória com pelo menos 82%TiO2). O concentrado magnetítico tem 13%TiO2, 58% Fet e 5%Ganga. Na peletização definiu-se um procedimento de preparação de peletes à escala de bancada, seleccionando condições a usar com base num estudo de factores. Compararam-se peletes de ilmenite pura obtidos por este procedimento com peletes industriais, nomeadamente no que respeita à resistência mecânica. O estudo de redução utilizou peletes preparados conforme este procedimento. O aspecto central focado, após caracterização e descrição das reacções presentes, foi o dimensionamento do forno rotativo de modo sensível à variação de qualidade do concentrado, para teores até ca 55% TiO2, Não se encontrando modelos para traduzir essa influência a nível de projecto, ou mesmo simulação de operação, foi desenvolvido um procedimento, exemplificado com o concentrado ilmenítico. Experimentalmente verificou-se poderem as reacções ser descritas pelo sistema Fe-Ti-O. Embora as reacções ocorram entre soluções sólidas, podem ser descritas por fases puras, sendo o equilíbrio estimado nesta base compatível com dados experimentais. Foi modelada a cinética das reacções no interior do leito do forno (5 de redução nos peletes e a de gaseificação do redutor sólido). Nas reacções, não necessariamente sequenciais, ocorrem soluções sólidas, e duas têm tempo de indução. Os modelos cinéticos foram obtidos por regressão, para as reduções de Fe(III) (determinadas conjuntamente), wustite, e ilmenite, e a gaseificação de carvão vegetal comercial. Usaram dados de ensaios experimentais a 900, 950 e 1000 ºC, em reactor vertical, obtidos por uma balança digital em condições adaptadas, para um único pelete, do ensaio ISO 4695 de reducibilidade, e dum ensaio industrial de reactividade de coque. Com estes parâmetros, se conhecida a temperatura do leito, podem-se modelar as reacções no seu interior e estimar o tempo de residência requerido por dada metalização. Dimensionar um forno rotativo que concretize este tempo de residência, implica outros aspectos, que impõem restrições ao projecto. O movimento de sólidos no forno tem de ocorrer em simultâneo com as reacções. A transferência de calor deve garantir a temperatura do leito, avaliar os diversos fluxos térmicos, e a distribuição de temperaturas, mantendo a temperatura de parede abaixo dum valor crítico para a formação de anéis de incrustações. O arraste de poeiras pelos gases deve ser mantido a um nível satisfatório. O dimensionamento é a busca directa do projecto óptimo dentro destas restrições. O procedimento de dimensionamento proposto, na ausência dum método de projecto e de instalações para o aferir, apenas pode ser comparado com alguns casos mais bem documentados em pesquisa bibliográfica. A discussão efectuada permitiu detectar limitações nos modelos utilizados, com base no que foram propostos critérios para delimitar a validade de alguns modelos. O trabalho efectuado aponta questões que podem ser estudadas ou melhoradas, aos vários níveis estudados, assim como pontos fracos do próprio modelo, que poderão requerer trabalhos futuros.
Titanomagnetite, an ore formed by iron(Fe) and titanium(Ti) oxides, has ilmenite, magnetite and hematite as useful minerals. It can be processed to produce pig iron, titanium slag and, whenever the vanadium(V) contents and price are high enough, vanadium slag. Metallurgical processing is carried out in submerged arc furnaces. The electric energy consumption is significantly decreased by pre-reducing the ore in a rotary kiln. If the ore is fine-sized, it may be convenient to have it pelletised before pre-reduction. The gabbro-anorthosite complex of Tete, Mozambique, has many outcrops of this ore, generally small and formed by one ore body surrounded by an aureole of elluvium. The vanadium contents is not high, but may be an interesting byproduct, particularly if intended to be sold only when the market reaches high prices. Past studies of its processing have lead to different conclusions, due to the complexity resulting from the scattering of the outcrops and the grade variation between them. Being a triple ore (pig iron, Ti and V-Slags), the project is also linked to different markets and, particularly in the case of vanadium, with large price fluctuations. The present work intends to contribute to its study, in what concerns the pre-reduction in the rotary kiln. Without industrial pellets of such concentrates, the scope of the study had to include its beneficiation (concentrates preparation) and pelletising, in order to get materials corresponding to industrially obtained materials. In beneficiation it was also studied how to estimate the concentrates value dependence on composition by their back calculated price, and an ilmenitic concentrate was obtained, with 31% TiO2, 46% Fet and 6% gangue (from which pig iron and a Ti-slag, at least 82% TiO2 can be obtained). The magnetitic concentrate has 13% TiO2, 58% Fet and 5% gangue. In pelletising, a procedure for bench-scale pellets preparation was defined, to select preparing conditions after a set of factorial designed experiments. Pure ilmenite pellets prepared by this procedure were compared with industrial pellets, regarding namely their compression strength. The reduction study used pellets prepared by this procedure. The main issue considered, after characterizing and describing the reactions taking place, was the design of a rotary kiln allowing for variation of the concentrade grade up to 55% in TiO2 contents. Models to describe this influence at design or even simulation level were not found, and thus a procedure was developed for this, using ilmenitic titanomagnetite concentrate as example. Experiments confirmed that reactions taking place can be described within the system Fe-Ti-O. Although reactions take place involving solid solutions, they can be described by pure phases, equilibrium conditions estimated on this assumption being coeherent with experimental data published. The kinetics of the reactions in the kiln solids bed was modeled (6 reactions in pellets and the solid reducer gasification reaction). The reduction reactions occur with solid solutions, some are simulataneous, and two of them have an induction period. Kinetic models were obtained by regression, for the reduction of Fe(III) (determined globally), wustite and ilmenite, and commercial charcoal gasification. Data used was taken from test runs in a vertical tube reactor, at 900, 950 and 1000 ºC, using a digital balance, in conditions similar to the ISO 4695 reducibility test and to an industrial test for coke reactivity, adapted in both cases for single pellet/particle. Known these parameters, at given bed temperature, the reactions inside it can be modelled estimating the residence time required to achieve the wanted metallization. To size a rotary kiln with the same residence time other aspects must be considered, that set design constraints. The solids movement along the kiln is simultaneous to the reactions. Heat transfer ensures the bed temperature, evaluates several heat fluxes and the temperatures longitudinal distribution, while keeping the wall temoperature below a critical value at which ring formation occurs. Solids elutriation by gases must be kept at an acceptable level. The kiln design is carried by a direct search of the optimum design within these constraints The proposed design procedure, in absence of a design method and of experimental or industrial installations used for its validation, can only be compared with a few cases better described in literature Its discussion allowed to find bottlenecks and limitations in the proposed models, and criteria to set limits to the application of one of them were proposed. The work carried out points out issues to be further studied and improved, in different areas covered, as well as weak points of the model itself which may require future work.
Instituto Nacional de Engenharia, Tecnologia e Inovação - (INETI).
Universidade de Lulea.
Agência de Cooperação Sueca (SAREC).
Instituto Nacional de Geologia.
Universidade Eduardo Mondlane.
Universidade do Minho.
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Ou, Shu-Fang, and 歐淑芳. "Characteristics and transitions of titanomagnetite in the sheeted-dike basalts from the ODP drilled hole 504B---with implication for the magnetization of oceanic crusts." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/f65zb2.

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碩士
國立中山大學
海洋資源學系研究所
90
Abstract The pattern of seafloor magnetic anomalies is a record for the self-reversals of the Earth magnetic field from the long past to the present. It has preserved crucial data for the formation and evolution of oceanic crusts and is one of the most important evidences for the theory of plate tectonics. However, the features and origins of magnetic carriers in the sheeted dikes of oceanic crusts have not been completely understood and are still in debate. In the present study, magnetic minerals in the core samples, which were drilled from the sheeted dikes at the DSDP/ODP 504B drill hole during Legs 83, 111, 137, 140, and 148, have been studied by using methods of rock magnetism and mineralogy with high-resolution petrographic tools (transmission electron microscopy, TEM). Our results indicate that the sheeted dike basalts have been subjected to different degrees of hydrothermal alterations, which are equivalent to greenschist facies to amphibolite facies metamorphism on the basis of the secondary mineral assemblages. The primary titanomagnetite in all the sheeted dike basalts has suffered high-temperature oxidation, exsolution, and hydrothermal alteration, and transformed into magnetite, which becomes the main magnetic mineral in the sheeted dikes. The lamellar widths of the secondary magnetite, as observed with electron microscopy, are consistent with the grain sizes inferred form the rock magnetic properties. The grain sizes of the magnetite are within the pseudo-single-domain field and increase with depths of the sheeted dikes. The consistent results of the whole-rock magnetic properties and the TEM observations have proved that the secondary magnetite and its textural features are representative of the features of magnetic mineral in the sheeted dikes. Therefore, on the basis of the formation model of the magnetite, it is inferred that the sheeted dike basalts obtained thermal chemical remanent magnetization (TCRM) at ~500°C (high-temperature oxidation, or exsolution), and then obtained chemical remanent magnetization (CRM) at ~350°C (hydrothermal alteration). The timing for the magnetization of the sheeted dike basalts thus lags slightly behind their formation. The primary titanomagnetite in the sheeted dikes has been completely transformed into pseudomorphs that consist of approximately half magnetite and half ilmenite or other phases. Thus, the natural remanent magnetization (NRM) of the sheeted dikes is only about half of that for the extrusive pillow basalts. However, the total thickness of the sheeted dikes is about three times of that for the pillow basalts. The sheeted dikes should have contributed to the seafloor magnetic anomalies to some extents.
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9

Engelmann, Ralf [Verfasser]. "Bestimmung diagnostischer magnetischer Übergangstemperaturen von synthetischen Titanomagnetiten und Ilmenit-Hämatit-Mischkristallen / vorgelegt von Ralf Engelmann." 2008. http://d-nb.info/98927375X/34.

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Lindvall, Mikael. "A Study on Vanadium Extraction from Fe-V-P Melts Derived from Primary and Secondary Sources." Doctoral thesis, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-213747.

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Vanadium extraction methods were developed for iron-vanadium-phosphorus (Fe-V-P) melts derived from processing of V-bearing titanomagnetites and steel slags. Studies on phase relationships of V slags were carried out to provide important understanding of the extraction processes. Phase relationship in vanadiferous slag was investigated experimentally at 1573K, 1673K and 1773K, for the compositional range of 0-6mass% Al2O3, 1-5mass% CaO, 10-17mass% SiO2, with MnO and V2O3 fixed at 5.5mass% and 30mass%, balanced with FeO. The slags were found to be solid-liquid mixtures, of liquid, spinel and in some cases free silica. Alumina was identified as the preferred additive to prohibit precipitation of free silica. A method for V extraction to vanadiferous slag was developed based on Fe-V(2mass%)-P(0.1mass%) melts at 1677K using a semi-industrial scale BOF. Oxidation was carried out with an oxygen enriched air jet and iron ore pellets. The complete dissolution of pellets was achieved by deliberately creating good stirring conditions utilising high momentary decarburisation rates. The P distribution to the slag was low when good stirring conditions was obtained. Phase relationship in Al2O3-CaO(25-35mass%)-SiO2-VOx slag was investigated experimentally at an oxygen partial pressure of 9.37•10-11atm and 1873K. The maximum solubility of V-oxide in the slag was 9-10mass% V2O3. Two solid phases were found, a solid solution of Al2O3 in V2O3 (karelianite) and hibonite with fractionation of V into the crystal structure. V extraction experiments to Al2O3-CaO-SiO2 based slags were carried out in 150kg scale by blowing CO2 gas into the metal bath consisting mainly of 1-10mass% V and 1mass% P. At these conditions, oxidation of V was favoured over Fe. Up to 10-13mass% V2O3 could be dissolved in the slag before a viscous slag saturated in V-oxide was observed. The phosphate capacity in the slag was low and as a result this slag could at once be subjected to a final reduction step for production of ferrovanadium with 40-50mass% V.
Metoder för att utvinna vanadin till högvärdiga vanadinslagger från metallsmältor innehållande främst järn (Fe), vanadin (V) och fosfor (P) utvecklades. Metallsmältorna framställs genom att processa primära V råvaror, såsom titanomagnetit, och sekundära råvaror av i huvudsak vanadinrik stålslagg. Fasstudier av högvärdiga vanadinslagger genomfördes som grund för utvecklingsarbetet. Experimentella fasstudier av vanadinspinellslagg med 30vikt% V2O3 och 5.5vikt% MnO genomfördes vid en temperatur av 1573K, 1673K och 1773K. Övriga komponenter i slaggen varierades inom ett intervall av 0-6vikt% Al2O3, 1-5vikt% CaO och 10-17vikt% SiO2, viktad med järnoxid. Samtliga slagger var sammansatt av både flytande- och fastfas. Den fasta fasen utgjordes främst av en vanadin- och järnrik spinellfas och i vissa fall även av fri SiO2. Genom försök i en stålkonverter i semi-industriell skala utvecklades och validerades en metod för vanadinutvinning från råjärnsmältor innehållande 2vikt% V och 0.1vikt% P, vid en temperatur av 1677K. Oxidationen utfördes med syreanrikad luft via en vattenkyld topplans och genom tillsats av hematit pellets. Omsättningen av pellets säkerhetsställdes genom god omrörning som erhölls under korta perioder med höga gasvolymer som en effekt av hög avkolningstakt. Råjärnet efter behandlingen innehöll cirka 3vikt% C och 0.1vikt% V. Producerad vanadinspinellslagg bestod av upp till 30vikt% V2O3. Fosforfördelningen till slaggen var låg under processbetingelser med god omrörning. Experimentella fasstudier av Al2O3-CaO(25-35vikt%)-SiO2-VOx slagg genomfördes vid en temperatur av 1873K och ett syrepartialtryck av 9.37·10-10atm. Den maximala lösligheten av vanadinoxid i slaggen var 9-10vikt% V2O3. Två fasta faser identifierades, V2O3 (Karelianit) med fast löslighet av Al2O3 och Hibonit med vanadinoxid inlöst i kristallstrukturen. Experimentella försök för att utvinna vanadin från en stålsmälta bestående av 1-10vikt% V och 1vikt% P till en slagg med en initial sammansättning av 7-40vikt% Al2O3, 25-35vikt% CaO och 27-64vikt% SiO2 utfördes i en skala av 150kg. Oxidation av vanadin åstadkoms genom att blåsa in CO2 gas i stålsmältan via en spolsten. Under dessa processförhållanden var oxidationen av vanadin gynnsam framför järn och fosfor. Lösligheten av vanadinoxid i slaggen var upp till 10-13vikt% V2O3. Slagg mättad med vanadinoxid var viskös som en konsekvens av utfällning av V2O3 med inlöst Al2O3. Slaggens gynnsamma vanadin och järn- samt vanadin och fosfor förhållande möjliggör att genom slutreduktion producera ferrovanadin med en vanadinhalt av 40-50vikt% och låg fosforhalt.

QC 20170912

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Books on the topic "Titanomagnetite"

1

I, Shabalin L., and Manokhin A. I, eds. Titanomagnetity: Mestorozhdenii͡a︡, metallurgii͡a︡, khimicheskai͡a︡ tekhnologii͡a︡. Moskva: "Nauka", 1986.

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Smirnov, L. A. Metallurgicheskai︠a︡ pererabotka vanadiĭsoderzhashchikh titanomagnetitov. Cheli︠a︡binsk: "Metallurgii︠a︡", Cheli︠a︡binskoe otd-nie, 1990.

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Ibragimov, Shamil, Dilyara Kuzina, Sergey Mishenin, and Timur Zakirov. Picroilmenite in Kimberlites and Titanomagnetites of the Yakutian Diamond-Bearing Province. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-28184-7.

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Razmeshchenie i veshchestvennyĭ sostav apatit-titanomagnetit ilʹmenitovykh rud massiva Gremi͡a︡kha-Vyrmes. Apatity: Kolʹskiĭ filial AN SSSR, 1987.

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Ibragimov, Shamil, Dilyara Kuzina, Sergey Mishenin, and Timur Zakirov. Picroilmenite in Kimberlites and Titanomagnetites of the Yakutian Diamond-Bearing Province : Magnetic and Mineralogical Analysis: Experiment, Theory, ... Springer, 2019.

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Book chapters on the topic "Titanomagnetite"

1

Liu, X., W. Schoenthal, T. Cox, A. Wise, D. E. Laughlin, and M. E. McHenry. "Titanomagnetite Properties and Microstructures." In Characterization of Minerals, Metals, and Materials 2014, 387–94. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118888056.ch45.

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Gongalsky, Bronislav, and Nadezhda Krivolutskaya. "Titanomagnetite Ore in the Chiney Pluton." In Modern Approaches in Solid Earth Sciences, 183–202. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-03559-4_7.

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Xin, Jianjiang, Nan Wang, Min Chen, and Chen Chen. "Slag-Metal Separation Behaviors of Vanadium Titanomagnetite Metallized Pellets." In 11th International Symposium on High-Temperature Metallurgical Processing, 867–77. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36540-0_77.

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Li, Guanghui, Feng Zhou, Zhengwei Yu, Zhixiong You, Yuanbo Zhang, and Zhiwei Peng. "Study on Reduction Disintegration of Sinter from Titanomagnetite Concentrate." In 6th International Symposium on High-Temperature Metallurgical Processing, 477–84. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093381.ch60.

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Li, Guanghui, Feng Zhou, Zhengwei Yu, Zhixiong You, Yuanbo Zhang, and Zhiwei Peng. "Study on Reduction Disintegration of Sinter from Titanomagnetite Concentrate." In 6th International Symposium on High-Temperature Metallurgical Processing, 477–84. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48217-0_60.

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Cai, Wei, Zhucheng Huang, Lingyun Yi, Ronghai Zhong, Xiong Jiang, Baizhou Tian, Chengfei Hu, and Yunyun Jin. "Gasification Behaviors of Biomass with Vanadium Titanomagnetite as Oxygen Carrier." In 11th International Symposium on High-Temperature Metallurgical Processing, 921–30. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36540-0_82.

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Badmatsyrenova, Roza, and Dmitriy Orsoev. "Origin of titanomagnetite-ilmenite mineralization, Arsentyev gabbro-syenite massif, Transbaikalia, Russia." In Mineral Deposit Research: Meeting the Global Challenge, 725–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27946-6_184.

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Gribov, S. K., V. P. Shcherbakov, and N. A. Aphinogenova. "Magnetic Properties of Artificial CRM Created on Titanomagnetite-Bearing Oceanic Basalts." In Springer Geophysics, 173–94. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90437-5_14.

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Sun, Lefei, Shan Ren, Xiangdong Xing, and Fuming Wang. "Influence of B2O3on Phases and Metallurgical Properties of High Ti-Bearing Vanadium-Titanomagnetite Sinter." In 5th International Symposium on High-Temperature Metallurgical Processing, 409–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118887998.ch51.

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Liu, Lei, Zhaobo Liu, Nianwen Pu, Yunfeng Fu, Zhongyu Zhang, Shangchao Du, Guoshan Du, Ninglei Sun, Dehua Wang, and Xiaoyan Li. "Extraction Behaviors of Vanadium(V) with Unacidified and Acidified N1923 from a Real Leachate of Vanadium-Titanomagnetite." In The Minerals, Metals & Materials Series, 101–9. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92662-5_10.

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Conference papers on the topic "Titanomagnetite"

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McCartney, Kelly, Julia Hammer, Thomas Shea, Thomas Giachetti, and Stefanie Brachfeld. "Investigating Titanomagnetite Abundance in Rhyolite Pumice." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1753.

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Ren, S., J. Yang, J. Zhou, Q. Zhao, B. Kong, and Q. Liu. "Vanadium-Titanomagnetite Phase Change Process before Sintering Equilibrium." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017/mst_2017_358_365.

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Ren, S., J. Yang, J. Zhou, Q. Zhao, B. Kong, and Q. Liu. "Vanadium-Titanomagnetite Phase Change Process before Sintering Equilibrium." In MS&T17. MS&T17, 2017. http://dx.doi.org/10.7449/2017mst/2017/mst_2017_358_365.

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Deng, Zhigan, Chang Wei, Xingbin Li, Cunxiong Li, Hongsheng Xu, and Minting Li. "Leaching vanadium from extracted vanadium residue of vanadium titanomagnetite." In 2013 International Conference on Manufacture Engineering and Environment Engineering. Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/meee131662.

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Ultarakova, Almagul. "DEVELOPMENT OF TECHNOLOGY FOR PROCESSING OF TITANOMAGNETITE WITH LOW TITANIUM CONTENT." In 16th International Multidisciplinary Scientific GeoConference SGEM2016. Stef92 Technology, 2016. http://dx.doi.org/10.5593/sgem2016/b12/s03.042.

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Kletetschka, Gunther, Mark A. Wieczorek, Mark A. Wieczorek, and Mark A. Wieczorek. "PALEOINTENSITY DETERMINATION FROM IRON, METEORITIC IRON, MAGNETITE, TITANOMAGNETITE, PYRRHOTITE, HEMATITE, TITANOHEMATITE, TROILITE." In 113th Annual GSA Cordilleran Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017cd-292041.

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Boiprav, O. V., T. V. Borbotko, and L. L. Gan'kov. "Electromagnetic radiation shields with geometrically inhomogeneous surface based on powdered perlite and titanomagnetite." In 2014 24th International Crimean Conference "Microwave & Telecommunication Technology" (CriMiCo). IEEE, 2014. http://dx.doi.org/10.1109/crmico.2014.6959565.

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Geng, Chao, Tichang Sun, and Huifeng Yang. "Utilization of coal sludge as reductant in the direct reduction of titanomagnetite ore." In 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/iceep-16.2016.67.

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Smorokov, A. A., A. S. Kantaev, and V. A. Borisov. "Research of titanomagnetite concentrate decomposition by means of ammonium fluoride and ammonium hydrogen fluoride." In 21ST CENTURY: CHEMISTRY TO LIFE. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5122921.

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Buzmakov, V. N., and Y. V. Volodina. "TITANIUM-MAGNETITE DEPOSITS AS A PROMISING RAW MATERIAL BASE FOR METALLURGY IN THE URALS (BASED ON THE EXPERIENCE OF DEVELOPING THE KACHKANAR GROUP OF DEPOSITS)." In Проблемы минералогии, петрографии и металлогении. Научные чтения памяти П. Н. Чирвинского. ПЕРМСКИЙ ГОСУДАРСТВЕННЫЙ НАЦИОНАЛЬНЫЙ ИССЛЕДОВАТЕЛЬСКИЙ УНИВЕРСИТЕТ, 2022. http://dx.doi.org/10.17072/chirvinsky.2022.27.

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Abstract:
Since the depletion of reserves of magnetite ores, profitable for mining, the role of titanomagnetite ores increases. In addition, the presence of V2O5 in the ores significantly increases their value, which is why the deposits are used only for the ex-traction of vanadium, and titanium and vanadium go to the waste of metallurgical pro-duction. If the titanium cannot be removed to the proper extent, then the ores are not mined. However, for the successful application of modern technologies for processing the ores of these deposits, it is necessary to take into account a number of mineralog-ical and genetic factors, and as a result, to conduct technological research at the early stages of geological study of ore objects. Even in the process of assessing a deposit, it is necessary to consider not only the enrichment technologies, but also the metallur-gical processing, as well as to carry out geological and technological mapping, which will effectively manage the quality of products at all stages of the production process.
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Reports on the topic "Titanomagnetite"

1

Goulart, Luis, Paulo Lopes, Marcelo Vasquez, and Antonio Oliveira. Caracterização da primeira ocorrência de anortosito com titanomagnetita vanadífera no Escudo das Guianas, Roraima, Brasil. CPRM, September 2019. http://dx.doi.org/10.29396/itcprm.2019.15.

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