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| Selective Removal of Trace Levels of Cu2+ and Cd2+ in Concentrated Zinc Solution with Loaded Nano-ZnS Cationic Resin |
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Received:December 13, 2021
Revised:December 30, 2021
Accepted:December 31, 2021
Published Online:April 12, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.05.003 |
| KeyWord:nanoparticles; ion exchange resins; D001; impurity metal ions; Cu2+; Cd2+; Tangnan membrane effect |
| Author | Institution |
| ZHU Jia-jun |
北京科技大学 |
| XIU Yi-Fan |
北京科技大学，冶金与生态工程学院，海淀区学院路30号 |
| SUN Jian-gang |
北京科技大学，冶金与生态工程学院，海淀区学院路30号 |
| HUANG Kai |
北京科技大学 |
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| Abstract: |
| Nano-ZnS loaded cationic resin adsorbent, namely ZnS@D001, was prepared by loading ZnS nanoparticles in cationic resin D001 and used to absorb coexisting impurity metal ions (such as Cu2+ and Cd2+) in hydrometallurgical zinc leaching solution. High priority adsorption of Cu2+ were achieved in 10 g/L Zn2+ synthetic solution, but there was no adsorption effect on Cd2+. The adsorbed ZnS@D001 resin can be effectively desorbed by 1 mol/L HNO3, and then loaded with ZnS again. At the same time, the fixed bed column adsorption of synthetic zinc ion solution containing Cu2+ and Cd2+ metal ion impurities were tested. After treatment, copper impurity content in effluent can be effectively removed, which can be used as a potential functional material for deep purification of zinc liquid in the zinc smelting industry. |
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