Hydrometallurgical recovery of metal values

Details Hydrometallurgical recovery of metal values Hydrometallurgical recovery of metal values

C - Chemistry, Metallurgy

22

B

53/347

C22B 3/00 (2006.01)

Patent

CA 1140767

ABSTRACT OF THE DISCLOSURE In a process for the recovery of metal values from a metal bearing source wherein said metal bearing source is subjected to a reduc- tive roast in an appropriate reducing atmosphere in contact with at least one additive, cooling the reduced metal bearing source, extracting the cooled reduced metal bearing source, and recovering the resultant metal value, the improvement which comprises utilizing a fresh metal bearing source feed as a scrubbing material to dry scrub the off-gas stream from said reductive roast to remove additives present in said stream.

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