Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
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.
Elve M. Alexandra
Hickman Paul L.
Ryan Patrick
LandOfFree
Method and system for extracting and refining gold from ores does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for extracting and refining gold from ores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for extracting and refining gold from ores will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1800481