Готові списки джерел за темами / Non-ferrous polymetallic metals

Добірка наукової літератури з теми "Non-ferrous polymetallic metals"

Автор: Grafiati

Опубліковано: 22 червня 2024

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Статті в журналах з теми "Non-ferrous polymetallic metals":

Darin, Aleksey A., and Nail M. Telyakov. "Investigation of Sulfatization Mechanism of Iron-Manganese Concretions in Fluidized Bed." Solid State Phenomena 299 (January 2020): 475–81. http://dx.doi.org/10.4028/www.scientific.net/ssp.299.475.

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The article presents the theoretical basis of sulfatizing roasting in the fluidized bed of oxidic and sulphidic polymetallic raw materials: iron-manganese concretions (IMC) containing non-ferrous metals and pyrite concentrate. The results of preliminary thermodynamic and thermogravimetric studies of IMC of Pacific Ocean and pyrite are described. The results of the laboratory-scale research of sulphatizing roasting of deep-water polymetallic IMC and pyrite concentrates are given. Based on the results obtained, the conclusion is made about the prospects of using the method of preliminary sulfatization for further production of marketable concentrates of manganese and non-ferrous metals.

Zhao, Feng, Xunxiong Jiang, Shengdong Wang, Linyong Feng, and Da Li. "The Recovery of Valuable Metals from Ocean Polymetallic Nodules Using Solid-State Metalized Reduction Technology." Minerals 10, no. 1 (December 25, 2019): 20. http://dx.doi.org/10.3390/min10010020.

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Ocean polymetallic nodules are oxide ores rich in Ni, Co, Cu, and Mn, which are valuable metals found in deep-sea mineral resources. Such non-ferrous metals do not exist in isolation, and producing concentrates using conventional mineral separation techniques is challenging without pre-treatment. We propose an effective, environmentally-friendly recovery technology combined with solid-state metalized reduction treatment and magnetic separation to recycle these metals from ocean polymetallic nodules. We conducted single-factor tests to investigate the effects of additives, anthracite dosage, duration, and reduction temperature on metal recovery and to obtain optimal operating parameters. We found that valuable metals in ocean polymetallic nodules may be selectively reduced to a metallic state. Only a fraction of Mn was reduced to metal. The reduced metals were recovered to concentrates using magnetic separation. More than 80% of these metals were concentrated to magnetic concentrates with mass ratios of 10–15%. The recovery rates of Ni, Co, Cu, Mn, and Fe in concentrates were optimum at 86.48%, 86.74%, 83.91%, 5.63%, and 91.46%, respectively, when using CaF2 4%, anthracite 7%, SiO2 dosage 5%, and FeS 6% at 1100 °C for 2.5 h. This approach to non-ferrous metal extraction using conventional hydrometallurgical processes could be a step toward practical industrial-scale techniques for the recovery of metals from polymetallic nodules.

Li, Zhixing, Mingkuan Qin, Yuqi Cai, Longsheng Yi, Wenquan Wang, Jian Wang, and Longlong Li. "New Evidence of Submarine Exhalative Sedimentation in the Uranium-Polymetallic Phosphorite Deposit in Baizhuyu, Hunan, China." Minerals 12, no. 7 (June 29, 2022): 826. http://dx.doi.org/10.3390/min12070826.

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There are as many as 25 kinds of minerals (including non-ferrous metals, ferrous metals, rare and dispersed elements, precious metals, non-metallic and energy minerals) enriched in uranium-polymetallic fertile beds in black rock series, which is therefore widely attracting scholars all over the world. However, there is still great controversy in terms of the metallogenic mechanism in such beds. The black rock series have been systematically sampled from the Baizhuyu deposit in northwestern Hunan Province, China based on field geological and radioactivity surveys. Major and trace elements as well as rare earth elements (REE) of uranium-polymetallic phosphorite and its wall rocks were analyzed. Furthermore, carbon and oxygen isotopes, Sm-Nd isotopes, and mineralogy of the Baizhuyu deposit were studied. The results show that dolomite is a normal marine sediment, while and uranium-polymetallic elements were pre-enriched in phosphorites and black carbonaceous argillaceous shales and slates that formed from marine sedimentation and submarine exhalative sedimentation. Hydrothermal reworking to uranium-polymetallic phosphorites is significant as a result of submarine exhalative sedimentation. The research results of this paper can support a better understanding of metallogenesis and the future exploration of uranium-polymetallic phosphorite in the Lower Cambrian Niutitang Formation in the study area.

Vardanyan, Narine S., Garegin G. Sevoyan, and Arevik K. Vardanyan. "Bioleaching of Tailings Resulting from Benefication of Polymetallic Ores for Recovery of Valuable Metals." Solid State Phenomena 262 (August 2017): 113–17. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.113.

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Concentrated tailings samples resulting from the benefication of polymetallic ores (Armenia) were exposed to bioleaching in order to recover non-ferrous and precious metals. Bioleaching of concentrated tailings samples was performed by the natural microbial consortium of drainage water. It was shown that the extent of extraction of metals from two samples of concentrated tailings by the natural microbial consortium reached 55, 56% and 63, 73% for copper and zinc, respectively. However, the application of the natural microbial consortium together with an iron- oxidizing Acidithiobacillus sp.13Zn resulted in an increase of extraction of metals from concentrated tailings to 70 - 93% for Cu and 75 - 90% for Zn. Thus, to increase the recovery of non-ferrous and precious metals, the use of a natural microbial consortium of drainage water combined with an iron- and sulfur- oxidizing Acidithiobacillus sp.13Znis proposed.

Fomchenko, Natalya, Taisiia Uvarova, and Maxim Muravyov. "Effect of mineral composition of sulfidic polymetallic concentrates on non-ferrous metals bioleaching." Minerals Engineering 138 (July 2019): 1–6. http://dx.doi.org/10.1016/j.mineng.2019.04.026.

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Evdokimov, Alexander. "Heavy metals in the organic soil horizon of the Northern taiga forests resulting from industrial air pollution." E3S Web of Conferences 169 (2020): 01011. http://dx.doi.org/10.1051/e3sconf/202016901011.

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This study focuses on heavy metals contained in organic soil horizons resulting from the industrial air pollution caused by local enterprises. Polymetallic dust containing heavy metals is one of the main by-products in the smelting of non-ferrous metals. We evaluated the contents of Ni, Cu, and Co in the upper soil horizons containing the maximum amount of these pollutants (due to the formation of stable compounds with organic components of these horizons). Sampling was carried out at various distances from the source of pollution at previously established test sites. The study found acid-soluble heavy metals at various distances from the source of pollution and revealed the regularity of their content, both qualitative and quantitative.

Epiforov, Alexander V., Aleksey N. Seleznev, Yuriy Ye Emelyanov, Stanislav V. Balikov, Lyudmila Ye Shketova, and Natalia V. Kopylova. "Heap Biooxidation of Gold-Sulphide and Polymetallic Ores and Tailings." Solid State Phenomena 262 (August 2017): 122–25. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.122.

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Heap biooxidation is the most economic option of treating processing plants tailings and refractory ores containing non-ferrous and precious metals and sulphides.Pyrite tailings of copper ore processing (Sample 1), tailings of sulphide copper-nickel ore processing (Sample 2) and double refractory gold-bearing ore (Sample 3) were studied.Autotrophic microorganisms Acidithiobacillusthiooxidans and Acidithiobacillusferrooxidans were used for the tests. The duration of heap biooxidation tests for Samples 1, 2 and 3 was 6, 10 and 16 months, respectively. The rates of copper and zinc recovery into solution during heap biooxidation of Sample 1 were 68% and 71%, respectively; the rates of copper and nickel recovery from Sample 2 were 50% and 75%, respectively. Base metals were extracted from solution to selective high-grade concentrates after biooxidation.Biooxidation tailings of Samples 1 and 3 were leached using an alkaline sodium cyanide solution. The recovery of gold from Sample 1 and Sample 2 was 65% and 85%, respectively.

Litvinov, V. V., N. A. Strunnikova, G. K. Daumova, N. V. Seraya, O. Mutere, and S. S. Utin. "OPTIMAL CONDITIONS FOR LIME TREATMENT OF MINE WASTEWATER FROM POLYMETALLIC ORE MINES." Bulletin D. Serikbayev of EKTU, no. 1 (March 2024): 179–89. http://dx.doi.org/10.51885/1561-4212_2024_1_179.

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Mine waters of polymetallic mines are multicomponent systems containing ions of heavy non-ferrous metals, calcium, magnesium, iron, ammonium, as well as chlorides, sulfates, fluorides and other components in a wide range of concentrations. As a rule, water purification of this type is carried out by the lime method, which provides a fairly high degree of extraction of the most toxic pollutants (metals), with relatively small material costs. Taking into account the large volume, complexity and variation of the composition of mine waters, the tasks of optimizing reagent consumption, methods of its supply and effective control of the purification process still do not lose their relevance. The article presents the results of laboratory studies to determine the optimal conditions for processing model solutions that provide the maximum degree of purification for specific conditions of the Irtysh mine (East Kazakhstan). Experimental data obtained on model solutions are confirmed by the results of purification of real mine waste water. The results of experiments with mine water confirmed that the selected pH region of 9.5–10.5 can be accepted as optimal, which will allow achieving a high degree of purification of mine water.

Mammedov, Аlesger, Shahbeddin Musaev, Yaroslava Poshivaylo, and Grigory Fedotov. "GI support of geological exploration of non-ferrous metal ore deposits." InterCarto. InterGIS 26, no. 2 (2020): 120–36. http://dx.doi.org/10.35595/2414-9179-2020-2-26-120-136.

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Geoinformation technologies are applied, without exaggeration, in all spheres of human activity, and the geological industry is no exception. Geoinformation systems in geology help to solve a number of practical problems. Geologists specializing in mineral exploration use a variety of data sets to search for new, cost-effective deposits, from geological maps, hyperspectral aerial photographs and multispectral satellite imagery to databases of various formats. The geographic information system is an ideal platform for combining such heterogeneous information and its subsequent analysis. The article describes the experience of the national mining company of the Republic of Azerbaijan CJSC AzerGold in the use of geographic information systems in the exploration of non-ferrous metal deposits using the example of the development of the Filizchay and Aghyokhush deposits. The authors considered production problems, described the problems that arise at the stage of exploration and proposed methods for solving them, the need for the integrated use of information systems in exploration when searching for deposits of non-ferrous metals is noted. A database structure has been developed for the purpose of geological exploration of non-ferrous metal ores, including sections such as topography, geochemistry, geophysics, structural geology. The structure of geoinformation support for geological exploration of non-ferrous metal ores is proposed, which combines the functionality of geographic information systems (GIS) and mining geological information systems (MGIS). The stages of geoinformation processing of initial data are illustrated, on the basis of which a geological exploration strategy was formed at the Filizchay pyrite-polymetallic deposit, and then the optimal places and number of wells, coordinates, directions and angles of incidence of wells were determined quickly and with high accuracy, as well as the resource potential was specified. The role of interpolation methods in determining the primary exploration wells in the exploration of the Agyokhush gold deposit is disclosed.

Nokhrina, O. I., I. D. Rozhikhina, I. A. Rybenko, M. A. Golodova,, and A. O. Izrail’skii. "Hydrometallurgical enrichment of polymetallic and ferromanganese ore." Izvestiya. Ferrous Metallurgy 64, no. 4 (June 4, 2021): 273–81. http://dx.doi.org/10.17073/0368-0797-2021-4-273-281.

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The article presents the results of theoretical and experimental studies of leaching of polymetallic manganese-containing and ferromanganese ore. Thermodynamic calculations and experimental studies on enrichment of manganese-containing raw materials made it possible to determine the main technological parameters of the extraction of manganese, iron and non-ferrous metals, and to develop technological schemes for enrichment of various types of manganese-containing raw materials. The studies were carried out for polymetallic and ferromanganese ores of the Kaigadat deposit, the Selezen deposit, the Sugul site, located in the Kemerovo Region – Kuzbass. Before carrying out laboratory studies, the authors have performed thermodynamic analysis of ore leaching, chemical and X-ray structural analyzes of the samples. Laboratory tests were carried out on a multichamber autoclave unit MKA-4-75 using calcium and iron chlorides as solvents. Since the introduction of a reducing agent into the charge during leaching significantly improves the conditions for dissolution of oxides and hydroxides of manganese in calcium chloride, a series of experiments was conducted with the use of charcoal in the charge. Thermodynamic calculations have shown that the leaching process is fully implemented in the temperature range from 323 to 673 K. The results of the experiments confirmed the theoretical research results. The obtained data allowed the authors to propose a technological scheme for hydrometallurgical enrichment of polymetallic and ferromanganese ores to produce high-quality concentrates. All processed products are suitable for use. The use of optimal technological parameters of enrichment allows 95–97 % of manganese, up to 80 % of nickel, up to 99 % of cobalt, and 96–98 % of iron to be extracted from polymetallic manganese-containing raw materials. As a result of the deposition of these elements, high-quality concentrates of manganese, nickel, iron, cobalt are obtained. According to the proposed technological scheme for ferromanganese raw materials with a high content of silicates, it is possible to obtain high-quality concentrates of manganese and iron, while the extraction of manganese is 90–92 %, and of iron – 86–90 %.

Більше джерел

Дисертації з теми "Non-ferrous polymetallic metals":

Bourgeois, David. "La mine, un fait urbain ? : traces du capitalisme médiéval dans le Rhin supérieur (XIVe-XVe siècles)." Electronic Thesis or Diss., Mulhouse, 2024. http://www.theses.fr/2024MULH8915.

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Le développement de l’exploitation des mines de métaux polymétalliques non-ferreux dans la partie méridionale du massif des Vosges, à partir du XIVe siècle a considérablement transformé l’économie du Rhin supérieur. La fin de l’époque médiévale, au cours de la seconde moitié du XVe siècle voit l’accélération de ce mouvement sous l’impulsion des forces économiques du Rhin supérieur. Les marchands bâlois comptent parmi les principaux protagonistes de cet élan qui voit les puits de mines s’ouvrir des territoires Habsbourg vers le Comté de Bourgogne. Cet épisode minier est l’occasion de mettre en lumière les traces d’un capitalisme médiéval s’affirmant à Bâle, sur les bords du Rhin
The development of non-ferrous polymetallic metal mines in the southern part of the Vosges mountains, from the 14th century onwards, considerably transformed the economy of the Upper Rhine. The end of the medieval period, during the second half of the 15th century, saw the acceleration of this movement thanks to the economic strength of the Upper Rhine. Basel merchants were among the main protagonists of this momentum which saw mines opening from the Habsburg territories to the County of Burgundy. This mining episode is an opportunity to highlight the traces of medieval capitalism asserting itself in Basel, on the banks of the Rhine

Частини книг з теми "Non-ferrous polymetallic metals":

Evdokimov, Alexander. "Aerotechnogenic Pollution of Boreal Forests in Northern Europe." In Environmental Sustainability - Preparing for Tomorrow. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95795.

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This paper discusses the changes that boreal forest ecosystems undergo under the influence of gaseous waste from the processing of non-ferrous ores on the Kola Peninsula. These communities are represented primarily by pine forests growing on the northern border of their range. The main forest-forming species here is Scots pine main components for this local aeronautical emission are polymetallic dust and sulfur dioxide, which is the main by-product during the roasting of sulfide and polysulfide ores. The studies were carried out on the basis of materials obtained at 6 sample plots located at different distances from the pollution source. As a result, an exponential increase in the content of heavy metals in the soil, as well as in the assimilatory organs of the components of these communities, was shown when approaching the source of pollution (this pattern is different for each of the metals). Regularities of negative changes in the structure of some components of plant communities, such as phytomass, projective cover of the lower layers, and the vital structure of the tree layer were also identified.

Тези доповідей конференцій з теми "Non-ferrous polymetallic metals":

Asrorov, B. I., Sh B. Bakhriddinzoda, and Z. H. Gaibullaeva. "STUDY OF PYROMETALLURGICAL PROCESSING OF KONY MANSUR POLYMETALLIC LEAD-ZINC CONCENTRATES WITH REDUCING GASES." In XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" named after corresponding member of the RAS Gennady Leonidovich PASHKOVA. Krasnoyarsk Science and Technology City Hall, 2023. http://dx.doi.org/10.47813/sfu.mnfrpm.2023.422-436.

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In order to implement the extensive program of economic and social development of Tajikistan, industrial production requires the involvement of existing mineral resources, the extraction and enrichment of which are associated with significant costs. This fully applies to ores of heavy non-ferrous metals, as the metal content in them decreases, and the chemical and mineralogical composition becomes more and more complex. As a result, the metallurgical process receives mainly collective concentrates, the processing of which by traditional methods is difficult, and sometimes impossible.

Karimov, K. A., M. A. Tretiak, and D. A. Rogozhnikov. "ARSENIC PRECIPITATION ON THE GOLD PROCESSING ENTERPRISES WASTE." In XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" named after corresponding member of the RAS Gennady Leonidovich PASHKOVA. Krasnoyarsk Science and Technology City Hall, 2023. http://dx.doi.org/10.47813/sfu.mnfrpm.2023.70-77.

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The necessity to increase the nonferrous metals production in the conditions of decreasing mineral reserves forces industrial enterprises to involve various primary and technogenic lowgrade polymetallic materials, middlings, etc. in the technological process. The general decline in the mineral material quality with the necessity to include the arsenic containing ore processing leads to large volumes of various intermediates formation that contains this highly toxic element.

Конурбаев, А. Е., Г. Н. Ибрагимова, С. К. Курбаниязов, and Г. А. Жаужанова. "COMBINED TECHNOLOGY FOR PROCESSING WASTE DUMPS OF THE BAIZHANSAI MINE." In «АКТУАЛЬНЫЕ ВОПРОСЫ СОВРЕМЕННОЙ НАУКИ: ТЕОРИЯ, ТЕХНОЛОГИЯ, МЕТОДОЛОГИЯ И ПРАКТИКА». Международная научно-практическая онлайн-конференция, приуроченная к 60-ти летию член-корреспондента Академии наук ЧР, доктора технических наук, профессора Сайд-Альви Юсуповича Муртазаева. Crossref, 2021. http://dx.doi.org/10.34708/gstou.conf..2021.22.42.012.

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Статья посвящена теме переработки отвалов рудника Байжансай в Туркестанской области, который, в настоящее время, является местом отходов полиметаллической руды в количестве примерно 6,5 тонн. В материале рассматривается потенциальная возможность применения данных отходов для извлечения полезных компонентов, таких как из цветных металлов - свинец и цинк, из благородных серебро и из редкоземельных - германий, индий, селен, теллур и таллий. При использовании данной переработки можно не только снизить негативное влияние отходов на окружающую среду, но и добыть полиметаллические руды, которые можно использовать в производстве стекол, оптики, в производстве высокоответственных подшипников для двигателей, для защиты антикоррозионных металлопокрытий и во многих других сферах, указанных в данной статье. Авторами было изучено технологическое решение по переработке отходов Байжансая. На основании полученных данных, была разработана технологическая модель, сочетающего в одном аппарате процессы электрохимической активации воды, флокуляции, газонасыщения и разделения микропримесей редких и рассеянных элементов (РРЭ), цветных металлов из технологических растворов и жидких техногенных отходов. Данный модуль является аналогом "классического" аппарата, но преимуществом предложенного модуля является меньшая энерго затратность, более эффективная работа по временным аспектам и по габаритам. The article is devoted to the topic of processing the dumps of the Baizhansai mine in the Turkestan region, whichis a place of waste of polymetallic ores in the amount of about 6.5 tons. The article discusses the potential use of these wastes for the extraction of useful components, such as non-ferrous metals - lead and zinc, precious silver, and rare-earth metals - germanium, indium, selenium, tellurium and thallium. With the use of this processing, it is possible not only to reduce the negative impact of waste on the environment, but also to extract polymetallic ores that can be used in the production of glass, optics, in the production of highly critical bearings for engines, to protect anti-corrosion metal coatings and in many other areas specified in this article. The authors studied the technological solution for the processing of waste from Baizhansai. Based on the data obtained, the authors of the article have developed a technological module that combines in one apparatus the processes of electrochemical activation of water, flocculation, gas saturation and separation of trace impurities of rare and trace elements (RRE), non-ferrous metals from technological solutions and liquid man-made waste. This module is analogous to the "classical" apparatus, but the advantage of the proposed module is lower energy consumption, more efficient work in terms of time and dimensions.