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| Study on Zinc Extraction from Crude Lead Electrolyte |
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Received:December 26, 2011
Revised:December 27, 2011
Accepted:December 27, 2011
Published Online:June 26, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.07.003 |
| KeyWord:lead electrolyte; zinc; P204; extraction; stripping |
| Author | Institution |
| HE Jing |
中南大学 冶金科学与工程学院 |
| WANG Tao |
中南大学 冶金科学与工程学院 |
| HUANG Ling |
中南大学 冶金科学与工程学院 |
| LUO Chao |
中南大学 冶金科学与工程学院 |
| WANG Xiao-neng |
中南大学 冶金科学与工程学院 |
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| Abstract: |
| The process of lead precipitating with H2SO4, neutralization, zinc extraction with P204, stripping with H2SO4 was proposed for lead electrolyte purification. The process of zinc extraction with P204 kerosene system, back extraction with H2SO4 and cyclic process of extraction-back extraction were investigated emphatically. The results show that the single stage extraction rate is about 99% on condition of O/A=1/1.5. Back extraction rate of zinc single stage is about 100% with 3 mol/L H2SO4. The enriched zinc concentration is 33 g/L, zinc stripping rate reaches 99.49%, and zinc total recovery rate is about 88.24% after 9 times extraction-back extraction cyclic process. |
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