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| Technical Study on Lead Extraction from Lead Paste of Waste Lead-Acid Batteries by Direct Electrolysis Process |
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Received:December 31, 2012
Revised:December 31, 2012
Accepted:January 04, 2013
Published Online:June 19, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.07.003 |
| KeyWord:waste lead-acid batteries; lead paste; lead electrolysis; current efficiency; cell voltage |
| Author | Institution |
| Wang Wei |
河南科技大学材料科学与工程学院 河南 洛阳 河南省有色金属材料科学与加工技术重点实验室 |
| Zheng Gengyin |
河南豫光金铅股份有限公司 |
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| Abstract: |
| Lead was extracted by direct electrolysis process from lead paste of waste lead-acid batteries with sodium ionic exchange membrane in NaOH solution. The effects of electrolysis temperature, cathode current density, concentration of NaOH, and mass of lead paste on current efficiency and cell voltage were investigated. The results show that the current efficiency is 91% under the optimum parameters including cathode current density of 585 A/m2, temperature of 55 ℃, concentration of NaOH of 15%, and mass of lead paste of 25 g. |
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