Process for extracting platinum group metals

Details Process for extracting platinum group metals Process for extracting platinum group metals

2007-10-16

2007-10-16

King, Roy (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

Reexamination Certificate

active

10961683

ABSTRACT:
PGMs can be extracted from a source material by heat-treating the source material to form a residue containing PGMs in a cyanide leachable condition and, thereafter, cyanide leaching the residue using a solution containing cyanide to form a pregnant cyanide leach liquor containing PGMs in solution.

REFERENCES:
patent: 4304596 (1981-12-01), Makipirtti et al.
patent: 4431614 (1984-02-01), Makipirtti et al.
patent: 4731114 (1988-03-01), Ramadorai et al.
patent: 2204424 (1997-03-01), None
patent: 833 718 (1960-04-01), None
Metals Handbook, Desk Edition, 2ndEdition, ASM 1998, pp. 41 and 45.
Muir D.M. and Ariti J.; “Studies on the Dissolution of Platinum and Palladium from Low Grade Ores and By-Products”; Fifth AusIMM Extractive Metallurgy Conference, Perth Australia; Oct. 2, 1991-Oct. 4, 1991, pp. 183-189, Australia.
McInnes C.M. et al; “Extraction of Platinum, Palladium and Gold by Cyanidation of Coronation Hill Ore”; Hydrometallurgy, Elsevier Scientific Publishing Cy. Amsterdam, NL; vol. 35, No. 2; Apr. 1, 1994, pp. 141-159.

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