Integrated, closed tank biooxidation/heap bioleach/precious meta

Details Integrated, closed tank biooxidation/heap bioleach/precious meta Integrated, closed tank biooxidation/heap bioleach/precious meta

1999-02-22

2000-08-01

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75744, 423DIG17, C22B 318

Patent

active

060961139

ABSTRACT:
A metal-containing refractory ore, such as refractory sulfide ore, is split into a first portion and a second portion. The first portion is partially biodigested by a sulfide-digesting microorganism in a biooxidation reactor where the microorganism is acclimated to the sulfide "diet" provided by the ore. The partially digested ore is then combined with the second portion. The resulting material is then dewatered, agglomerated, biooxidized and subjected to a lixiviation process.

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