RECOVERY OF GOLD AND SILVER FROM COMPLEX REFRACTORY SULPHIDE ORES BY CYANIDISATION AND OXIDATION WITH PEROXIDES

PCT No. PCT/AU90/00165 Sec. 371 Date Dec. 24, 1991 Sec. 102(e) Date Dec. 24, 1991 PCT Filed Apr. 27, 1990 PCT Pub. No. WO90/13676 PCT Pub. Date Nov. 15, 1990.A method of recovering precious metals from a silver bearing ore containing polybasite, pearcite, pyrargyrite, tetrahedrite or argentite by mi...

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Hauptverfasser:	RODEN, STEPHEN J, CHOUZADJIAN, KEVORK A, SMITH, TREVOR J, SPIETH, MICHELLE A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	PCT No. PCT/AU90/00165 Sec. 371 Date Dec. 24, 1991 Sec. 102(e) Date Dec. 24, 1991 PCT Filed Apr. 27, 1990 PCT Pub. No. WO90/13676 PCT Pub. Date Nov. 15, 1990.A method of recovering precious metals from a silver bearing ore containing polybasite, pearcite, pyrargyrite, tetrahedrite or argentite by mixing the ore with an alkali metal or alkaline earth metal peroxide in slurry or solid, leaching the ore with a cyanide solution, and recovering the precious metals from the cyanide solution.