Cuprion process start-up control

Details Cuprion process start-up control Cuprion process start-up control

C - Chemistry, Metallurgy

22

B

53/369

C22B 3/00 (2006.01) C22B 3/14 (2006.01) C22B 5/04 (2006.01) C22B 47/00 (2006.01)

Patent

CA 1061571

ABSTRACT OF THE DISCLOSURE A process in which copper, nickel, cobalt and molybdenum are recovered by reducing comminuted raw manganese nodules with an aqueous solution containing cuprous ions. An improvement is disclosed in which copper is oxidized to provide a starting solution of cuprous ions for the process. In one important embodiment of the invention wet copper cement is added to a solution of carbon dioxide and ammonia and ground manganese nodules are then added to the mixture. As a result, a starting solution containing cuprous ions is produced, A major advantage gained from utilizing manganese nodules as an oxidizing agent is that the manganese nodule is itself reduced and its metal values are added to the reaction solution.

234054

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