Recovery of metal values from a metal bearing source

Details Recovery of metal values from a metal bearing source Recovery of metal values from a metal bearing source

C - Chemistry, Metallurgy

22

B

53/369

C22B 61/00 (2006.01)

Patent

CA 1174056

"RECOVERY OF METAL VALUES FROM A METAL BEARING SOURCE" ABSTRACT Metal values may be recovered from metal bearing sources which contain at least two metals, at least one of which is in the form of a sulfide, by treating the aforesaid source with an oxidant at an elevated temperature in the range of from about 600° to about 1500°C and in the presence of an added promoter comprising a sulfur-containing compound. The treatment will convert at least one metal value to an oxide and at least one metal value is converted to the elemental state which contains a relatively minor amount of a subsulfide. The addition of the sulfur- containing compound will result in an increase in the particle size of the elemental metal, thus permitting the recovery of said metal more readily.

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