Method for recovery of copper from copper-containing materials

Details Method for recovery of copper from copper-containing materials Method for recovery of copper from copper-containing materials

C - Chemistry, Metallurgy

22

B

C22B 3/14 (2006.01) C01C 1/246 (2006.01) C01G 3/14 (2006.01) C22B 3/44 (2006.01) C22B 15/00 (2006.01)

Patent

CA 2043473

"METHOD FOR RECOVERY OF COPPER FROM COPPER-CONTAINING MATERIALS" Abstract A process for precipitating solid hydrates of cupric tetrammine sulfate from a solution, wherein the solution contains at least 40 grams per liter of free ammonia, at least 50 grams per liter of ammonium sulfate and wherein the temperature of the solution is less than 21°C. The hydrates of cupric tetrammine sulfate can be converted to additional useful copper compounds.

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