Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1995-08-14
1997-02-18
Simmons, David A.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75744, 423 27, 423 29, C22B 1100
Patent
active
056037503
ABSTRACT:
This invention provides an improved method of leaching precious and base metal values from ore comprising contacting a metal-bearing ore or ore concentrate with an oxidizing gas solution comprising a solution of an oxidizing gas dissolved in a perfluorinated liquid, said contact being made prior to or during extraction of the precious or base metal from the ore. In another aspect, this invention provides a method of destroying cyanide from a cyanide-containing solution comprising contacting said solution with a solution of an oxidizing gas dissolved in a perfluorinated liquid.
REFERENCES:
patent: 3846124 (1974-11-01), Guay
patent: 4038362 (1977-07-01), Guay
patent: 4102916 (1978-07-01), Falk
patent: 4169583 (1979-10-01), Cramer
patent: 4171248 (1979-10-01), Carlin
patent: 4171282 (1979-10-01), Mueller
patent: 4177246 (1979-12-01), Stoddard et al.
patent: 4259107 (1981-03-01), Guay
patent: 4289532 (1981-09-01), Matson et al.
patent: 4632738 (1986-12-01), Beattie et al.
patent: 4752412 (1988-06-01), Van Antwerp et al.
patent: 4894484 (1990-01-01), Lagow et al.
patent: 4898611 (1990-02-01), Gross
patent: 4941917 (1990-07-01), Cenegy et al.
patent: 4979986 (1990-12-01), Hill et al.
patent: 5077437 (1991-12-01), Robertson et al.
patent: 5180398 (1993-01-01), Boardman et al.
patent: 5207996 (1993-05-01), Sierakowski et al.
patent: 5225054 (1993-07-01), Boateng
patent: 5260040 (1993-11-01), Kenna
patent: 5409736 (1995-04-01), Leiner et al.
Kirk-Othmer Encyclopedia of Chemical Technology, vol. 11, pp. 972-992, John Wiley & Sons (3d ed. 1979).
N. C. Wall et al., "Gold Beneficiation," Mining Magazine, pp. 393-401 (May 1987).
A. K. Biswas & W. G. Davenport, Extractive Metallurgy of Copper, pp. 358-380, Pergamon (3d ed. 1994).
J. B. Hiskey, Arizona Bureau of Geology and Mineral Technology Fieldnotes, vol. 15, No. 4, pp. 1-5 (Winter 1985).
J. Marsden & I. House, The Chemistry of Gold Extraction, pp. 35, 105-06, Ellis Horwood Ltd., ISBN 0-13-131517-X (1992).
Kirk-Othmer Encyclopedia of Chemical Technology, vol. 21, pp. 1-6, 15, John Wiley & Sons (3d ed. 1979).
N. Abiter & A. Fletcher, "Copper Hydrometallurgy--Evolution and Milestones," Hydrometallurgy--Fundamentals, Technology and Innovations, pp. 549-563, Society of Mining, Metallurgy, and Exploration, Inc. (1993).
J. Marsden & I. House, Chemistry of Gold Extraction, pp. 111-112, 126-129, 214-221, Ellis Horwood Ltd., ISBN 0-13-131517-X (1992).
D. Bhattacharyya et al., "Oxidation of Hazardous Organics in a Two-Phase Fluorocarbon-Water System", Hazardous Waste & Hazardous Materials, vol. 3, No. 4, pp. 405-428 (Winter 1986).
J. C. Yannopoulos, The Extractive Metallurgy of Gold, pp. 115-117, 127, Van Nostrand Reinhold, ISBN 0-442-31797-2 (1991).
Fluorinert.TM. Fluids, product bulletin 98-0211-8301-1 (65.05)R, issued May 1995, 3M Co., St. Paul, Minn.
Sierakowski Michael J.
Waddell Jennifer E.
Burtis John A.
Griswold Gary L.
Kirn Walter N.
Lorengo Jerry Allen
Minnesota Mining and Manufacturing Company
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