Treatment of ores or metallurgical by-products containing...

Details Treatment of ores or metallurgical by-products containing... Treatment of ores or metallurgical by-products containing...

C - Chemistry, Metallurgy

22

B

53/175

C22B 1/11 (2006.01) C01G 28/00 (2006.01) C01G 30/00 (2006.01) C22B 3/06 (2006.01) C22B 3/36 (2006.01) C22B 3/38 (2006.01) C22B 3/40 (2006.01) C22B 15/00 (2006.01) C22B 30/00 (2006.01)

Patent

CA 1069316

ABSTRACT In a process for treating a metal bearing material containing arsenic and antimony by leaching in an acid solution with an oxygen containing gas under pressure at a temperature of between 20 and 200°C, the improvement which consists in adding at least one element chosen from the group consisting of arsenic and phosphorous in such an amount to the leach mixture that the molar ratio (As + 4P) : Sb therein shall be at least equal to 8, thus dissolving at least the major part of the arsenic and antimony contained in the starting material.

248037

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