FIELD: technological processes.
SUBSTANCE: invention relates to hydrometallurgical processing of phosphorous magnetite ores. Method of processing involves production of crude magnetite concentrate with grain size of 100 mcm by magnetic separation. Then its bioleaching is performed using biocomplex of acidophilic thione microorganisms Ac. ferrooxidans and Ac. Thiooxidans and one-stage wet magnetic separation of bioleaching cake to produce high-quality magnetite concentrates, nonmagnetic fraction and bioleaching solution with removing of more than 40 % phosphorus, 80 % copper, 90 % zinc into it.
EFFECT: increased efficiency of processing phosphorous magnetite ores of complex composition with simplification and cheapening of processing technology using an environmentally safe method, improved quality of end products and reduction of processing costs; method is resistant to change in composition of raw materials.
6 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMBINED METHOD OF REBELLIOUS LEAD-ZINC ORES PROCESSING | 2015 |
|
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| METHOD OF PROCESSING WASTE COPPER PRODUCTION | 2015 |
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| METHOD OF MANGANESE HEAP BIOLEACHING OF MANGANESE-CONTAINING MATERIALS | 2018 |
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| FINISHING OF ROUGH HIGH-SULPHUR MAGNETITE CONCENTRATE | 2013 |
|
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| HEAP BIOLOGICAL LEACHING LEAN REFRACTORY MINERAL RAW MATERIALS OF NATURAL AND TECHNOGENIC ORIGIN | 2017 |
|
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| PROCESSING OF MIXED COPPER-BEARING ORES WITH PRELIMINARY GRAVITY CONCENTRATION AND BIOLEACHING OF NONFERROUS METALS | 2012 |
|
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| METHOD OF DEEP RECYCLING IRON-CONTAINING WASTES | 2015 |
|
RU2623928C2 |
| METHOD FOR EXTRACTING SCANDIUM FROM PYROXENITE RAW MATERIAL | 2010 |
|
RU2448176C2 |
| METHOD FOR EXTRACTING COPPER FROM SULPHIDE-BEARING ORE | 2011 |
|
RU2471006C1 |
