METHOD FOR BIOOXIDATION OF REFRACTORY SULFIDE ORES Russian patent published in 1998 - IPC

Abstract RU 2113522 C1

FIELD: recovery of noble metals from refractory sulfide ores. SUBSTANCE: method includes stages of separation of clays and fine fractions from ground refractory sulfide ore, formation of paste of refractory sulfide ore, bioleaching of heap for oxidation of iron sulfides and hydrometallurgical treatment of ore after biological leaching for recovery of noble metals. Should separated clays and fine fractions contain reasonable amount of noble metals, these materials may be additionally treated to recover noble metals. EFFECT: higher efficiency. 24 cl, 7 dwg , 1 tbl

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RU 2 113 522 C1

Authors

Uil'Jam Dzh.Kor

Dates

1998-06-20—Published

1994-12-02—Filed