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| Production Practice separation and recovery of cadmium from oxygen-enriched top-blow lead smelting dust by combined with zinc hydrometallurgy |
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Received:August 31, 2022
Revised:September 16, 2022
Accepted:September 20, 2022
Published Online:February 23, 2023
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| DOI： |
| KeyWord:oxygen-enriched air top-blown lead smelting；dust；cadmium；comprehensive recovery |
| Author | Institution |
| CHEN Chunlin |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology;Yunnan Chihong Zinc and Germanium Co. LTD |
| DAI Xingzheng |
Yunnan Chihong Zinc and Germanium Co. LTD |
| WEI Chang |
Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming Yunnan;China Yunnan Chihong Zinc and Germanium Co LTD,Qujing Yunnan,;China |
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| Abstract: |
| In order to solve the problem of continuous enrichment of cadmium in lead fume in the process of oxygen-rich top blowing lead, the advantages of combined lead-zinc smelting process were brought into play, and the wet zinc smelting process was used to jointly dispose of lead fume in the process of oxygen-rich top blowing lead, so as to realize the separation and recovery of cadmium. Lead dust dilute sulphuric acid leaching period of cadmium leaching rate is 85.7%, smoke lead in silver into the leaching residue return lead system realize the recycling of lead, leaching liquid adopts copper slag dechlorination control of chlorine ion concentration is less than 200 mg/L, after the chloride liquid into wet zinc smelting leaching, purification process, the recovery of cadmium realize the recycling use of cadmium, realize the effective way of cadmium in lead dust. The technology is economical and environmentally friendly, and has strong operability. |
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