|
| Copper Recovery from Waste Teflon by Acid Leaching |
|
Received:January 07, 2015
Revised:January 12, 2015
Accepted:January 14, 2015
Published Online:May 20, 2015
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2015.06.005 |
| KeyWord:copper; Teflon (PTFE); waste; acid leaching |
| Author | Institution |
| Zhou Ai-guo |
赣州有色冶金研究所 |
| Cheng Dong-ying |
赣州有色冶金研究所 |
| Peng Shao-hua |
赣州有色冶金研究所 |
|
| Hits: 2087 |
| Download times: 2606 |
| Abstract: |
| Copper was recovered from waste Teflon (PTFE) by acid leaching under atmospheric pressure. The effects of initial concentration of sulfuric acid, initial concentration of assistant leaching agent, leaching temperature and time on copper leaching rate were investigated. The results show that copper leaching rate is 98% with low impurity content in leaching solution under the optimum conditions including initial concentration of sulfuric acid of 3.5 mol/L, mass fraction of assistant leaching agent of 15%, leaching temperature of 45 ℃, and time of 5 h. |
| Close |