Method and system for extracting and refining gold from ores

Details Method and system for extracting and refining gold from ores Method and system for extracting and refining gold from ores

1996-11-27

1999-09-07

Ryan, Patrick

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75745, 75741, 75744, C22C 1100

Patent

active

059481404

ABSTRACT:
A process and system and for extracting and refining gold from ores using relatively benign and inexpensive chemicals, fewer process steps, and permitting the recycling and re-use of process chemicals. The invention is preferably implemented as a two part process. In a first part process, gold is extracted from the ore and dissolved in a chemical solution to form a gold complex. The chemical solution preferably includes a KI and I.sub.2. Optionally, Isopropyl alcohol is mixed with the KI and I.sub.2 to serve as an accelerate. In a second part process, the complex is reduced to gold from the solution, preferably by one of two methods. The first method precipitates the gold complex by washing and decomposing of the gold complex to form pure gold. The second method electrolytically plates the gold from the gold complex solution onto a cathode to obtain pure gold.

REFERENCES:
patent: 3957505 (1976-05-01), Homick et al.
patent: 3957603 (1976-05-01), Rhodes
patent: 4182671 (1980-01-01), Squarcialupi
patent: 4494986 (1985-01-01), Forsman
patent: 4612093 (1986-09-01), Shor
patent: 4668289 (1987-05-01), Langer et al.
patent: 4723998 (1988-02-01), O'Neil
patent: 4738718 (1988-04-01), Bakshani et al.
patent: 4786318 (1988-11-01), Owen et al.
patent: 5034055 (1991-07-01), Rowson
patent: 5152969 (1992-10-01), Kleid et al.
patent: 5162105 (1992-11-01), Kleid et al.
patent: 5221421 (1993-06-01), Leibovitz et al.
patent: 5401296 (1995-03-01), Martenson et al.
patent: 5489326 (1996-02-01), Thomas et al.

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