METHOD OF PROCESSING WASTE COPPER PRODUCTION Russian patent published in 2017 - IPC C22B15/00 C22B7/04 C22B3/18 

FIELD: metallurgy.

SUBSTANCE: method includes enrichment of the feedstock and to obtain productive bioleaching solution. Thus as the feedstock used stale copper smelting slags production with high contents of metals Cu, Pb, Zn, Sn, Sb, As, Bi, Fe, which is directed to a mechanical refining to obtain a bulk concentrate and tailings. Obtained is subjected to pelletizing and tails heap leaching to obtain a productive with extraction solution it Cu, Zn, Fe, Sb, As and a solid residue. The resulting residue was sent for pyrometallurgical processing to give the crude lead and the slag recycled. Productive bioleaching solution is routed to copper to produce carburizing copper solution and directed to the precipitation therefrom of calcium arsenate and receiving transparent iron oxide pigment.

EFFECT: increased efficiency and depth of processing slag to produce more marketable products.

10 cl, 3 tbl, 2 ex