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| Research Progress of Wet Desulfurization Process and Utilization Technology of Waste Lead Paste |
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Received:September 09, 2021
Revised:September 17, 2021
Accepted:September 18, 2021
Published Online:December 17, 2021
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| DOI：doi：10.3969/j.issn.1007-7545.2021.01.018 |
| KeyWord:waste lead paste; wet desulfurization; recovery; kinetic modeling; mechanical strengthening |
| Author | Institution |
| ZHAO Li-juan |
北京工业大学 |
| TAN Zhe |
北京工业大学 |
| ZHANG Xiao-guang |
北京工业大学 |
| WU Guang-long |
生态环境部对外合作与交流中心 |
| PAN Jun-qing |
北京化工大学 |
| WU Yu-feng |
北京工业大学 |
| Pan De-an |
北京工业大学 |
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| Abstract: |
| Technological characteristics of waste lead batterie recycling in recent years were briefly described from domestic and global aspect. Lead paste wet desulfurization process and utilization technology of current study were main summarized. The existing methods can be divided into solid-liquid and solid-solid desulfurization technology systems. Characteristics and shortcomings of the existing technologies were compared and analyzed. Key control factors of wet desulfurization process were reviewed from reaction mechanism and model of wet pre-desulfurization. The incomplete reaction caused by product layer coating during desulfurization process was discussed. In response to this problem, shear, collision, grinding and other mechanical strengthening methods were analyzed and confirmed due to their contribution of promoting mass transfer process. On this basis, outlook of grinding-leaching enhanced desulfurization was drawn. |
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