2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 10: Mineral & Secondary Battery
| Editors: | Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 340 pages |
| ISBN: | 978-1-987820-33-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Sustainable Hydrometallurgy Lead Acid Batteries Recycling Based on Carboxylic Acids
Xiong He1; Vasant Kumar2; Jiakuan Yang3;1UNIVERSITY OF CAMBRIDGE, cambridge, Great Britain; 2UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom (Great Britain); 3HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (HUST), Wuhan, China;
Type of Paper: Regular
Id Paper: 262
Topic: 14
Abstract:
Lead acid battery can be recycled by adapting a sustainable hydrometallurgy process with carboxylic acids for directly producing lead oxide from lead pastes to make new batteries. However, impurities in the lead paste can easily contaminate the lead oxide product thus affecting the battery performance.
In order to investigate the behavior of three typical impurities, antimony, tin and barium sulphate during the hydrometallurgical recycling of lead acid battery, we report on the dissolution behavior of these elements in citric acid/sodium citrate solution (CS) and acetic acid/sodium citrate solution (AS) under varying temperature, time and atmosphere. In a CS solution, tin and barium sulphate can achieve higher dissolution, while dissolution of antimony can be promoted in an AS solution. This work has also shown that oxygen in air can dramatically accelerate the dissolution of both antimony and tin in CS solutions. The performance of tin and antimony during recycling of real lead paste was also studied in this work.