China Nonferrous Metallurgy

Danxia Smelter has introduced a 3.23.2m² large electrode plate zinc electrowinning production process, and the production was generally stable, with an average current efficiency of 90%, but occasionally there were fluctuations in the quality of the new liquid, high TOC content in the system liquid, and inadequate management of the electrolytic cell surface, etc. In response to this problem, the smelter has adopted measures such as strict control of the composition of the new liquid, modification of supporting production equipment, and strengthening of production control. The annual average current efficiency has been increased from 90% to 91.97%, and there have been no “plate burning” accidents throughout the year, 0# zinc ingot grade rate is 100%, and good economic benefits have been achieved.