Rezumat
Mechanism of the anodic disolution of copper-silver alloys with a silver content up to 30% in a sulphuric electrolyte has been studied. It has been shown that in the process of alloy disolving silver ions transfer into electrolyte, and the ions of univalent copper are formed, resulting in the process of the secondary cristallization of silver in a slime. While adding some olefin compounds in a small quantity to a sulfate electrolyte the stable complexes of univalent copper are formed, and as a result its concentration increases, and in anolyte silver ions are completely reduced. The final effect consists in the fact that sliming of high-pure silver is observed practically in anode space only, and on cathode silver-free copper deposits.