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Letteratura scientifica selezionata sul tema "Ore-dressing"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Ore-dressing"

1

Liu, Bingyu, Dingsen Zhang e Xianwen Gao. "A Method of Ore Blending Based on the Quality of Beneficiation and Its Application in a Concentrator". Applied Sciences 11, n. 11 (31 maggio 2021): 5092. http://dx.doi.org/10.3390/app11115092.

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Ore blending is an essential part of daily work in the concentrator. Qualified ore dressing products can make the ore dressing more smoothly. The existing ore blending modeling usually only considers the quality of ore blending products and ignores the effect of ore blending on ore dressing. This research proposes an ore blending modeling method based on the quality of the beneficiation concentrate. The relationship between the properties of ore blending products and the total concentrate recovery is fitted by the ABC-BP neural network algorithm, taken as the optimization goal to guarantee the quality of ore dressing products at the source. The ore blending system was developed and operated stably on the production site. The industrial test and actual production results have proved the effectiveness and reliability of this method.

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2

Cao, Shi Ming, Xiao Lin Zhang e Shu Qin Zeng. "The Present Situation and Progress of Zinc Oxide Flotation". Advanced Materials Research 756-759 (settembre 2013): 68–71. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.68.

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This paper introduces the zinc oxide ore flotation process and flotation reagents; analyses the reasons why zinc oxide ore is difficult to concentrate; introduces new techniques of zinc oxide ore dressing; prospects the development trend of zinc oxide ore dressing.

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3

Sukhova, Anna V., E. A. Preobrazhenskaya, A. V. Il’Nitskaya e V. A. Kir’Yakov. "THE HEALTH OF WORKERS OF CONCENTRATING MILLS BY MODERN TECHNOLOGIES OF CONCENTRATION OF MINERALS AND PREVENTION MEASURES". Health Care of the Russian Federation 61, n. 4 (24 maggio 2019): 196–201. http://dx.doi.org/10.18821/0044-197x-2017-61-4-196-201.

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The article presents the results of study of factors of occupational risk for health of workers of ore-dressing factories. At ore-dressing factories, despite of implementing new technological processes and modern equipment, leading role of noise factor and pollution of air of working zone with aerosols predominantly of fibrogenic effect is preserved. for workers of ore-dressing factories a high degree of industrial conditioning of diseases of blood circulation organs, respiratory organs, bone muscular system, INT organs is specific. The structure of occupational diseases is formed by dust diseases of lungs and occupational pathology of organ of hearing. The complex of preventive measures is developed and ways of their implementation are proposed targeted to supporting health of workers opf ore-dressing factories and preventing development of occupational and occupationally conditioned diseases.

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4

Golik, V. I., O. Z. Gabaraev, Yu I. Razorenov e S. A. Maslennikov. "Metal leaching from ore dressing tailings". Izvestiya. Ferrous Metallurgy 65, n. 7 (27 luglio 2022): 511–18. http://dx.doi.org/10.17073/0368-0797-2022-7-511-518.

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The problem of depletion of available mineral resources is identified and the reasons for its actualization are characterized due to incomplete extraction of metals from mined ores. It is noted that the strategy of the mining industry may be the use of unconventional technologies of metal extraction within the framework of combining traditional technologies with innovative leaching ones. It is proved that utilization of enrichment tailings, formation of the processes algorithm and engineering forecast of the prospects of the new technology are the real directions of mining production development. The paper considers a method of experimental substantiation of the possibility of waste-free utilization of ferruginous quartzite dressing tailings from the Kursk Magnetic Anomaly. The planning matrices and the results of comparing the technologies of traditional leaching of dressing tailings in conditioners and leaching in a high-speed disintegrator mill are presented with regression analysis of experimental data and graphical interpretation. A reference is given on the processes of mechanical activation, as a real opportunity to improve the indicators of the processing metal-containing raw materials, including involving dressing tailings in production. The experimental results obtained can be used in hydrometallurgical processes, including leaching of metals from dressing tailings, increasing the extraction of metals with a higher content. The paper considers the data on the metals content in secondary tailings after leaching in a disintegrator with mechanochemical processes activation. The directions of improvement of preparation of metal-containing raw materials for leaching in conditioners – disintegrators are indicated. The economic efficiency of waste-free disposal of dressing tailings is composed of the cost of extracted metals, raw materials for related industries and reducing environmental damage from the storage of toxic tailings of primary processing.

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ARAI, Satoshi, Hiroki YOTSUMOTO, Shinichi ITO e Hiroshi SAKAMOTO. "Study of Complex Tin Ore Dressing." RESOURCES PROCESSING 39, n. 1 (1992): 2–7. http://dx.doi.org/10.4144/rpsj1986.39.2.

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Korobeinikov, M. V., A. A. Bryazgin, V. V. Bezuglov, E. A. Shtarklev, A. Yu Vlasov, S. A. Kondratyev e V. I. Rostovtsev. "Radiation-Thermal Treatment in Ore Dressing". IOP Conference Series: Materials Science and Engineering 81 (23 aprile 2015): 012124. http://dx.doi.org/10.1088/1757-899x/81/1/012124.

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7

Pelevin, Aleksei, Vil Saitov e Vladimir Dmitriev. "Separation of magnetite concentrate before the last grinding stage". E3S Web of Conferences 177 (2020): 01002. http://dx.doi.org/10.1051/e3sconf/202017701002.

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For magnetite and titanium magnetite ores, it is possible to use technology with the separation of concentrate before the last grinding stage. The possibility of staged separation of iron concentrate is due to different physical-mechanical properties of magnetite and rock minerals. The results of industrial and laboratory tests on the use of special magnetic separators with special structure, Derrick screen and screw separators in iron ore dressing schemes are presented. A comparison of proven dressing methods is performed. The choice of a specific dressing method for the staged separation of magnetite concentrate before the last grinding stage is determined by the properties of the base ore and the economic justification.

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Suleimenov, Batyrbek, e Yelena Kulakova. "THE PROSPECTS FOR THE USE OF INTELLIGENT SYSTEMS IN THE PROCESSES OF GRAVITATIONAL ENRICHMENT". Informatyka Automatyka Pomiary w Gospodarce i Ochronie Środowiska 9, n. 2 (21 giugno 2019): 46–49. http://dx.doi.org/10.5604/01.3001.0013.2547.

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Intelligent control systems are actively developing and can significantly reduce financial costs and improve the environmental performance of ore-dressing processes. Usage of intelligent control systems for gravitational enrichment allows to minimize costs and negative influence of ore tails on the environment, exclude losses of concentrate and energy resources in the ore-dressing process. The paper discusses the problems and prospects for the application of intelligent control systems of gravity concentration equipment. A structure of the control system and an intelligent model for determining the frequency of pulsation jigging machine based on fuzzy logic are proposed. The model is based on data obtained from experts, it is researched. The obtained results allow to judge about the prospects for the implementation of intelligent systems in the management of ore enrichment.

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Krasavtseva, EA, VV Maksimova e DV Makarov. "Environmental hazard of loparite ore dressing tailings". E3S Web of Conferences 247 (2021): 01044. http://dx.doi.org/10.1051/e3sconf/202124701044.

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Mobilization of environmentally hazardous elements from loparite ore tailings when exposed to various leaching agents was studied in laboratory conditions. Leaching of pollutants from fresh tailings when exposed to atmospheric precipitation and the processes of interaction of mature tailings dust particles (-0.071 mm) with soil water were examined. It was found that in both cases, there is an intensive decomposition of the minerals making up the tailings and conversion of heavy metals (Zn, Mn, Sr) and rare earth elements of the light group (La - Sm) into a dissolved, and therefore bioavailable form. At the same time, the pollutant concentrations were many times higher than the maximum permissible concentrations for fishery water bodies. The results of the experiments indicate the environmental hazard associated with loparite ore concentration tailings due to the pollution of environment with heavy metals and rare earth elements released when the tailings interact with rainwater and soil water.

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Niemi, A. J. "Steady-State Optimization of Ore-Dressing Plants". Isotopenpraxis Isotopes in Environmental and Health Studies 25, n. 4 (gennaio 1989): 176–80. http://dx.doi.org/10.1080/10256018908624089.

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Tesi sul tema "Ore-dressing"

1

Labonté, Germain 1960. "Electrochemical potentials in flotation systems : measurement, interpretation and applications". Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63825.

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2

Penberthy, Catharina Johanna. "The effect of mineralogical variation in the UG2 chromitite on recovery of platinum-group elements". Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-11282005-113358/.

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Stange, Wayne. "Towards more effective simulation of minerals processing systems". Thesis, University of the Witwatersrand, Johannesburg, 1988. http://hdl.handle.net/10539/21140.

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Two aspects of the computer simulation of minerals processing systems were investigated in order to facilitate more effective use of simulation technology. A user-interface was designed and combined with an existing simulator executive, resulting in the implementation of a user-friendly microcomputer based minerals processing simulator, MicroSim. Ease of use was achieved by consideration of the needs of the user of such a program. This resulted in the use of graphical methods for information input and output. Efficient form-filling techniques were developed for numerical data entry and editing. Models for the carbon-in-pulp adsorption process and for continuous gold leaching were derived. The CIP models were derived using a population balance approach. The method of characteristics and the method of moments were found to be particularly useful in solving the resulting equations. Besides being important processes in themselves, the integration of these models into MicroSim provided valuable experience regarding the use of such models in a simulator.
AC 2016

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Alves, Paula Regina. "The carbonatite-hosted apatite deposit of Jacupiranga, SE Brazil: styles of mineralization, ore characterization and association with mineral processing". Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/prayb4_09007dcc804f7bd9.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2008.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 9, 2008) Includes bibliographical references (p. 131-139).

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Cline, Jean Schroeder. "Physical and chemical aspects of fluid evolution in hydrothermal ore systems". Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-09162005-115029/.

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Van, der Merwe Josias Willem. "Dissolution of sphalerite minerals from Rosh Pinah tailings". Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-04282005-124139.

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Dai, Qiang. "Simulation of packed column jigging". Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=783.

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Thesis (M.S.)--West Virginia University, 1999.
Title from document title page. Document formatted into pages; contains xiii, 131 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 61-64).

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8

Maree, Westhein Bethren. "Froth flotation of an Nkomati mineral ore using mixtures of thiol collectors". Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2512.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2016.
Nickel, a valuable base metal, is the predominant product from the Nkomati mine in South Africa. High-grade nickel mineral ores (2%) from the Massive Sulphide Body have been depleted leaving those of low grade (0.3%). The beneficiation of this ore presents a challenge to the minerals processing industry. In response, batch froth flotation tests were used to explore the effects of mixtures of potassium amyl xanthate (PAX) and IPETC (Isopropyl ethyl thionocarbamate) on the grades and recoveries of nickel. In the mixtures, the xanthate accounted for 95.5, 90, 85 and 80 mole% respectively. Generally an increase in the nickel grade and recovery was observed with the mixtures relative to PAX. IPETC gave a significant increase in the cumulative water recovery with a significant decrease in cumulative nickel grade relative to PAX. PAX gave the highest cumulative nickel grade for the singular collector tests (1.9%), while obtaining the lowest cumulative recovery (77%). Out of the collector mixtures, mixtures 85% PAX: 15% IPETC and 90% PAX: 10% IPETC produced the joint highest cumulative grades (1.8%). These mixtures both gave recoveries of 82%. Collector mixture 95.5% PAX: 4.5% IPETC gave the second highest grade (1.7%) and the highest nickel recovery (85%). Although there were differences in the cumulative nickel grades and recoveries there were statistically no significant improvements observed with the use of the mixtures of PAX and IPETC in comparison to the industry mixture (95.5% SIBX: 4.5% IPETC). Tests were performed using the three best performing collector mixtures at molar dosages of 1.3, 0.65 and 0.325mmol/t. The highest cumulative nickel grades were obtained at the lowest collector dosages (at a molar dosage of 0.325mmol/t of 95.5% SIBX: 4.5% IPETC) with collector mixture 95.5% PAX: 4.5% IPETC being the most selective with a nickel grade of 2%. It was also observed that an increase in collector dosage, generally increased the cumulative nickel recovery with collector mixture 95.5% PAX: 4.5% IPETC at a molar dosage of 1.3mmol/t gave the highest cumulative recovery out of the tested mixtures (85%). The study also indicated that an increase in selectivity (i.e. cumulative grade) was at the expense of cumulative recovery. With a decrease in dosage, there was no significant improvement in the cumulative nickel grade and recovery for the tested mixtures compared to the industry mixture. There was however a significant decrease in the water recoveries achieved with PAX and collector mixtures 95.5% PAX: 4.5% IPETC at a molar dosage of 1.3mmolg/t of as well as mixture 90% PAX: 10% IPETC at a molar dosage of 0.65mmol/t.

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Vianna, Sérgio Maurício S. M. "The effect of particle size, collector coverage and liberation on the floatability of galena particles in an ore /". [St. Lucia, Qld.], 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18153.pdf.

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Купин, А. И., e А. В. Азарян. "Обобщенный алгоритм принятия решений для 1 стадии рудообогатительной фабрики". Thesis, Издательство СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/25231.

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Libri sul tema "Ore-dressing"

1

N, Trubet͡s︡koĭ K., e Institut problem kompleksnogo osvoenii͡a︡ nedr (Akademii͡a︡ nauk SSSR), a cura di. Aktualʹnye voprosy razrabotki i obogashchenii͡a︡ rud. Moskva: Akademii͡a︡ nauk SSSR, In-t problem kompleksnogo osvoenii͡a︡ nedr, 1990.

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2

Abramovich, Barskiĭ Lev, Danilʹchenko L. M, Nauchnyĭ sovet po fiziko-khimicheskim problemam obogashchenii͡a︡ poleznykh iskopaemykh (Akademii͡a︡ nauk SSSR), Institut problem kompleksnogo osvoenii͡a︡ nedr (Akademii͡a︡ nauk SSSR) e Plaksinskie chtenii͡a︡ (1988 : Moscow, R.S.F.S.R.), a cura di. Nauchnye osnovy postroenii͡a︡ optimalʹnykh skhem obogashchenii͡a︡ mineralʹnogo syrʹi͡a︡: Plaksinskie chtenii͡a︡, Moskva, 11-13 okti͡a︡bri͡a︡ 1988 g. : sbornik nauchnykh trudov. Moskva: "Nauka", 1990.

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3

Jain, S. K. Ore processing. New Delhi: Oxford & IBH Publishing, 1986.

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Earnshaw, Graham. Downstream processing: An overview of resource development processing in Western Australia. Perth, WA: Dept. of Resources Development, 1996.

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I, Bogdanov E., Zhukov A. V e Institut gornogo dela (Akademii͡a︡ nauk SSSR. Dalʹnevostochnoe otdelenie), a cura di. Upravlenie svoĭstvami i pererabotka dispersnykh materialov Dalʹnego Vostoka: Sbornik nauchnykh trudov. Vladivostok: Akademii͡a︡ nauk SSSR, Dalʹnevostochnoe otd-nie, In-t gornogo dela, 1990.

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Mill Operators' Conference (4th 1991 Burnie, Tasmania). Fourth Mill Operators' Conference: March 1991, Burnie, Tasmania. Victoria, Australia: Australasian Institute of Mining and Metallurgy, 1991.

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7

Mill Operators' Conference (3rd 1988 Cobar, N.S.W.). Third Mill Operators Conference, May 1988. Parkville: Australasian Institute of Mining and Metallurgy, 1988.

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Mill Operators' Conference (8th 2003 Townsville, Queensland). Eighth Mill Operators' Conference: Townsville, Queensland, 22-23 July 2003. Carlton South, Vic: AUSIMM, 2003.

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9

Gornyĭ institut (Akademii͡a nauk SSSR. Kolʹskiĭ nauchnyĭ t͡sentr), a cura di. Intensifikat͡sii͡a obogashchenii͡a rud Kolʹskogo poluostrova: Sbornik nauchnykh trudov. Apatity: Kolʹskiĭ nauchnyĭ t͡sentr AN SSSR, 1991.

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10

Troit͡skiĭ, V. V. Promyvka i obesshlamlivanie poleznykh iskopaemykh. 2^a ed. Moskva: "Nedra", 1988.

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Capitoli di libri sul tema "Ore-dressing"

1

Petruk, William. "Applied Mineralogy in Ore Dressing". In Mineral Processing Design, 2–36. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3549-5_2.

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2

Ferreira, Karoline K., Bruna L. Novo, Danielle C. Castro, Daniel Barcellos, Luiz C. Bertolino, Antônio C. O. Guerra, Carla N. Barbato et al. "Characterization and Ore Dressing of Bauxite from Brazil". In Light Metals 2017, 17–23. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51541-0_3.

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3

Du, Lingpan, e Yongjie Guo. "Application of Mathematical Simulation Method in Phosphate Ore Dressing". In Innovative Computing Vol 1 - Emerging Topics in Artificial Intelligence, 944–50. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2092-1_120.

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4

Liu, Cheng-song, Jing-she Li, Hai-yan Tang e Wei Liu. "A Sintering Ore Blending Optimization Model Based on “Iron Increase and Silicon Reduction” Ore Dressing Processes". In EPD Congress 2014, 231–40. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118889664.ch27.

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Akhmednabiev, Rasul, Lyudmila Bondar, Oksana Demchenko e Vladimir Shulgin. "Some Properties of Fiber-Reinforced Road Concrete Using Iron Ore Dressing Wastes". In Lecture Notes in Civil Engineering, 15–24. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85043-2_2.

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Simões, Karla M. A., Bruna L. Novo, Adriana A. S. Felix, Julio C. Afonso, Luiz C. Bertolino e Fernanda A. N. G. Silva. "Ore Dressing and Technological Characterization of Palygorskite from Piauí/Brazil for Application as Adsorbent of Heavy Metals". In Characterization of Minerals, Metals, and Materials 2017, 261–67. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51382-9_29.

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"ore dressing". In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 941. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_150858.

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"Ore Dressing". In Metallurgy, a cura di W. H. Dennis, 20–54. Routledge, 2017. http://dx.doi.org/10.4324/9781315124414-2.

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"Mineralurgy. Ore Dressing". In Non-Ferrous Metal Ores, 216–398. CRC Press, 2002. http://dx.doi.org/10.1201/9781482264838-9.

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King, R. P. "Simulation of ore dressing plants". In Modeling and Simulation of Mineral Processing Systems, 351–94. Elsevier, 2001. http://dx.doi.org/10.1016/b978-0-08-051184-9.50014-6.

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Atti di convegni sul tema "Ore-dressing"

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Yamazaki, T., N. Nakatani, T. Nakatani e R. Arai. "Seafloor Primary Ore Dressing System for Economic Sulfide Mining". In 2012 5th International Conference on Emerging Trends in Engineering and Technology (ICETET). IEEE, 2012. http://dx.doi.org/10.1109/icetet.2012.73.

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Abdrakhimov, Vladimir Zakirovich. "USE OF WASTE OF NON-COLOR METALLURGY IN THE PRODUCTION OF CERAMIC BRICK ON THE BASIS OF FOREST-LIKE LOAM". In Russian science: actual researches and developments. Samara State University of Economics, 2020. http://dx.doi.org/10.46554/russian.science-2020.03-1-604/608.

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The article is devoted to environmental aspects of ceramic brick production using non-ferrous metallurgy waste. Studies show that the use of polymetallic ore dressing as a tailing agent and the tails of gravity of zircon-ilmenite ore as a plasticizing part makes it possible to obtain ceramic bricks with improved technical characteristics, eliminating the use of traditional raw materials. The study used regression analysis, with the help of which mathematical models were obtained that were not included in the series of the experiment of ceramic masses

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Ai, Guanghua, Xiuxiang Tao, Yong Wang e Yulin Chen. "The Analysis of Ploycyclic Aromatic Hydrocarbons in Aerosol (PM10, PM2.5) at Ore Dressing Plant". In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5747697.

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Zhang, Xiaofeng, Xianlin Zhong, Chunyou Tian e Yaofeng Zhao. "Experimental study on ore dressing of the D. R. Congo low grade copper oxide". In 2019 5TH INTERNATIONAL CONFERENCE ON GREEN POWER, MATERIALS AND MANUFACTURING TECHNOLOGY AND APPLICATIONS (GPMMTA 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5137852.

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Мелентьев, Гелий. "Manufacturing finished rare-metal products from natural raw minerals and artificial formations using innovation pyrochemical methods instead of conventional techniques". In Mineralogical and technological appraisal of new types of mineral products. Petrozavodsk: Karelian Research Center of RAS, 2019. http://dx.doi.org/10.17076/tm13_5.

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The author’s concept, showing the need to manufacture finished chemical and metal-ore products from the various types of Russia’s specialized rare-metal raw materials using direct physico-chemical dressing methods instead of producing mineral concentrates by conventional dressing methods, is presented. Arguments in favour of thermo- and pyrochemical methods for the deep processing of various natural and artificial raw materials using liquation melting, plasma chemistry and pyrolysis, are put forward. Examples, showing the use and efficiency of these methods for processing rare-metal resources, including recommendations for industrial mineral deposits to be exploited and waste from active mining companies, are supplied. The author recommends to revive and develop rare-metal production and to replace foreign products by Russian ones with regard for the increasing role of the state and applied science.

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Yefeng Liu, Gang Yu, Binglin Zheng e Tianyou Chai. "Production indices prediction model of ore dressing process based on PCA-GA-BP neural network". In 2009 Chinese Control and Decision Conference (CCDC). IEEE, 2009. http://dx.doi.org/10.1109/ccdc.2009.5191852.

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7

Junzhi, Chen, Ren Chunfang e Tao Feng. "The optimization of mining areas and ore dressing plants match in Yunnan Tin regional mine". In 2013 International Conference of Information Science and Management Engineering. Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/isme130501.

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8

Kuvaiev, I., I. Mladetsky e M. Oriol. "A promising approach to the identification and classification of steady-state operation of an iron-ore dressing section". In 2016 ANNUAL PROCEEDINGS. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315197814-10.

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9

Nikulin, V. O., e V. I. Miroshnychenko. "A system for predicting optimal mill performance to stabilize the finished product quality of the ore dressing factory". In MININGMETALTECH 2023 – THE MINING AND METALS SECTOR: INTEGRATION OF BUSINESS, TECHNOLOGY AND EDUCATION. Volume 2. Baltija Publishing, 2023. http://dx.doi.org/10.30525/978-9934-26-361-3-93.

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10

Junzhi, Chen, Ren Chunfang, Wang Xiaoqian e Qiu Haitao. "Optimization Model of Complex Mining and Ore-Dressing Systems in Regional Mine and Its Application Based on Genetic Algorithm". In 2010 International Conference on Intelligent System Design and Engineering Application (ISDEA). IEEE, 2010. http://dx.doi.org/10.1109/isdea.2010.158.

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Rapporti di organizzazioni sul tema "Ore-dressing"

1

Прилипко, Вікторія Вікторівна, e Вікторія Вікторівна Перерва. Таксономічна структура рослинних угруповань ландшафтно-техногенних систем Новокриворізького гірничо-збагачувального комбінату. Львів, 2004. http://dx.doi.org/10.31812/123456789/4237.

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Abstract (sommario):

The taxonomical structure of the plant communities of the landscape-technogenic systems were found taking the example Novokryvorizky Ore-Dressing Combine. Taxonomical indexes (ratio member family/genus; family/species; genus/species) were found at the plant communities. The complication of the taxonomical structure was determined by using three entropycal indexes.

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2

Савосько, Василь Миколайович, Юлія Бєлик e Юрій Васильович Лихолат. Ecological and Geological Determination of the Initial Pedogenesis on Devastated Lands in the Kryvyi Rih Iron Mining & Metallurgical District (Ukraine). Journ. Geol. Geograph. Geoecology, 2019. http://dx.doi.org/10.31812/123456789/3643.

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Abstract (sommario):

In our time, a very urgent problem is the cessation of negative impacts on the environment and the return to the practical use of the territories of devastated lands. In this regard, it is important to find out the basic laws of primary soil formation in the area of these man-made neoplasms. The initial soil formation conditions were analyzed on 19 experimental sites which represent the main varieties of devastated land in the Kryvyi Rih Iron Mining and Metallurgical District (Central Ukraine): (i) waste rock dumps of old iron mines (old name “Forges”), (ii) tailing storage facility of underground iron mines, (iii) waste rock dumps of the Iron Ore Mining and Dressing Plant, (iv) waste rock dumps of the Granite Quarry Plant. It was established that on the devastated lands in Kryvyi Rih District, the initial soil formation occurs in very difficult conditions. Therefore, over 25- 100 years only very primitive soils were formed. The following features are inherent to them: (1) primitive soil profile (thickness 10-100 mm), (2) low levels of soil organic substance content (9.5-11.5 %), (3) alkaline indicators of the soil solution (pHH2O – 8.08-8.92, pHKCl – 7.42-8.23), (4) low levels of cation exchange capacity (6.34-8.47 mMol /100 g). By results of correlation calculations, among the factors of soil formation time (duration of soil formation) and input of plant ash elements’ fall are characterized by the maximum number of statistically significant correlation coefficients and their numerical values. In terms of chemical composition of the technosol, the values of organic matter content and exchangeable acidity (pHKCl) were the most predictable soil formation factors. Generally physical / chemical characteristics of geological rocks (as parent material) and time were the two most important factors in determining the initial pedogenesis on devastated lands in the Kryvyi Rih Iron Mining & Metallurgical District (Ukraine).

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3

Флористична структура рослинних угруповань ландшафтно-техногенних систем криворізького Північного гірничо-збагачувального комбінату. Інститут екології Карпат НАН України, 2003. http://dx.doi.org/10.31812/123456789/4238.

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Abstract (sommario):

Taxonomical, ecological and ecology-coenotic structure of the species composition of plant communities of the landscape-technogenic systems on the example of the Kryvyi Rih Northern Ore-Dressing Combine has been studied. It has been found out that the structure of these plant communities depends on the degree of the anthropogenic transformation of the ecosystems.

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