APPARATUS FOR ELECTROCHEMICAL LEACHING OF PRECIOUS METALS FROM SLUDGE AND CONCENTRATES Russian patent published in 2002 - IPC

FIELD: precious metallurgy. SUBSTANCE: apparatus has housing, cathodic chamber with carcass and axial vertical channel, cathode and overflow branch pipe, anodic chamber with insoluble anode and overflow branch pipe, bladed mixer with shaft extending through cathodic chamber channel, diaphragm for separating anodic chamber from cathodic chamber, and power source. Diaphragm is made from fabric with water passage capacity of 4-8 cu.dm/sq.m/hour and stretched on carcass. Overflow branch pipe of cathodic chamber is arranged higher than overflow branch pipe of anodic chamber for distance making 0.1-0.2 the height of anodic chamber. Apparatus is used for leaching gold and platinum metals from sludge and concentrate. EFFECT: increased efficiency by intensified process and increased extraction of metals into solution. 1 dwg, 1 tbl