|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Effect of Oxidation of Zinc Powder on Purification of High-Cobalt and High-Germanium Zinc Sulfate Solutions
||Leixia Zheng, Zhiwei Peng, Liancheng Wang, Lei Yang, Jie Wang, Wenxing Shang, Mingjun Rao, Guanghui Li, Tao Jiang
|On-Site Speaker (Planned)
It is popular to use zinc power to purify electrolytic zinc sulphate solution via replacement reaction between zinc and other metals in the solution. In view of easy oxidation of zinc due to dampness, which will surely affect its purification performance, in this study, the influence of oxidation of zinc and zinc alloy powders on the purification of high-cobalt and high -germanium zinc sulfate solutions was explored. It was demonstrated that the oxidation percentages of zinc and zinc alloy powders should not exceed 2.5% and 1.0% for sufficient removal of cobalt from the solution, respectively, while for removal of germanium, the corresponding values were 0.5% and 0.2%. The results are expected to be helpful for guiding purification of zinc sulfate solution to meet the requirements of zinc electrowinning.