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Title: PROCESSING OF SLUDGE TAILS OF ENRICHMENT OF CHROME ORE
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PROCESSING OF SLUDGE TAILS OF ENRICHMENT OF CHROME ORE
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1314-2704
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English
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20
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4.2
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The physical and chemical characteristics of sludge from the chrome production in the Donskoy Ore Mining and Processing Plant (DOMPP) owned by TNK Kazchrome JSC have been studied.
Researches have been performed to determine the gravity concentration ability of sludge tailings using fractional analysis, concentration tables. It was found that it is required to classify the initial sludge into size classes to obtain high technological parameters, and beneficiation with screw separators is ineffective. New data have been obtained for the chromite sludge beneficiation process using modern technological equipment that enables to separate into narrow material size fractions with their subsequent gravity concentration with the help of concentration tables. A concentrate with a content of 50.82% Cr2O3 and a middling product with a content of 30.85% Cr2O3 was obtained as a result of beneficiation of sludge tailings with a content of 28.89% Cr2O3 using concentration tables. The novelty of the work is in the improvement of the beneficiation flow chart for sludge tailings of DOMPP that includes the operation intended to classify sludge tailings into narrow size classes at the process beginning and their separate beneficiation with the help of concentration tables. A schematic diagram of DOMPP sludge tailings beneficiation with the production of a finely dispersed concentrate that is the starting material for the chrome pellet production used for ferrochrome smelting is recommended. The proposed flow chart for sludge tailings beneficiation will enable to involve the enterprise?s current and stale tailings in processing that will increase the technical, economic, and environmental parameters of production. |
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, ENERGY AND CLEAN TECHNOLOGIES
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 8-11 December, 2020
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Proceedings Paper
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STEF92 Technology
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SGEM International Multidisciplinary Scientific GeoConference
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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65-72
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8-11 December, 2020
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website
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cdrom
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7657
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chrome production sludge;mineralogical analysis;particle size analysis;gravity concentration;chromium concentrate
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