发明名称 |
PROCESSING OF MIXED COPPER-BEARING ORES WITH PRELIMINARY GRAVITY CONCENTRATION AND BIOLEACHING OF NONFERROUS METALS |
摘要 |
FIELD: metallurgy.SUBSTANCE: proposed method comprises grinding, gravity concentration of ore and processing of concentrate. Note here that ore is ground to 0.6 mm-particle size. Gravity concentration is carried out at straight-flow small-filling sluice to produce concentrate, commercial product and tails. Said concentrate and commercial product are subjected to bioleaching at separate cycles using bacterium complexes consisting of copper-adapted autotropic thionic bacteria Ac.ferrooxidans, Ac.thiooxidans in active growth phase. Degree in decrease in material directed to bioleaching at gravity concentration makes 1000-1500. Biological vat leaching is conducted at the number of bacteria making at least 10cell/ml, S-to-L ratio of 1:5-1:9, active or moderate aeration and at 15-45°C for 90-120 hours.EFFECT: efficient and nonpolluting process.3 cl, 1 ex |
申请公布号 |
RU2501869(C1) |
申请公布日期 |
2013.12.20 |
申请号 |
RU20120124498 |
申请日期 |
2012.06.13 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "NVP TSENTR-EHSTAGEO" |
发明人 |
BASHLYKOVA TAT'JANA VIKTOROVNA;PAKHOMOVA GALINA ALEKSEEVNA;ASHIRBAEVA EVGENIJA ALEKSANDROVNA |
分类号 |
C22B15/00;C22B3/18;C22B11/00 |
主分类号 |
C22B15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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