Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1992-07-23
1995-01-03
Lewis, Michael
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
423 29, 423DIG17, 435262, C22B 1100
Patent
active
053784375
ABSTRACT:
A variety of processes for recovering gold from gold ore are disclosed. Briefly, the methods include culturing at least one microorganism species capable of producing cyanide ion under conditions wherein the microorganism produces cyanide ion, thus forming a cyanide ion-containing culture; contacting the cyanide ion-containing culture with gold ore, causing production of gold ion-cyanide ion complexes and biosorption of said complexes to said cultures; and recovering gold from the culture. The invention may be practiced with a variety of microorganisms, including Chromobacterium violaceum and Chlorella vulgaris.
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Kleid Dennis G.
Kohr William J.
Thibodeau Francis R.
Bos Steven
Geobiotics, Inc.
Lewis Michael
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