METHOD OF PROCESSING GALVANIC PROCESS COPPER-BEARING RESIDUES Russian patent published in 2013 - IPC C22B15/00 C22B7/00 C22B5/04 

FIELD: metallurgy.

SUBSTANCE: proposed method comprises thermal treatment of residues in air whereat temperature is increased to, at least 500°C at the rate of 150 °/h and curing at said temperature for, at least, two hours. Treated residues are mixed with aluminium powder resulted from grinding aluminium chips and are subjected to aluminothermy with subsequent separation of formed alloy and slag. Aluminothermy is conducted in tight reactor with continuous discharge of gaseous and sublimate reaction products. Note here that aluminium powder and thermally treated residues are taken at the ratio of 1: 6.5-7.0).

EFFECT: higher efficience of processing galvanic process copper bearing residues, method simplifying and higher ecological safety.

3 dwg, 2 tbl, 2 ex