|
| Solvent Extraction of Copper from Waste Printed Circuit Boards with N902 |
| Received:April 19, 2015 Revised:April 21, 2015 |
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2015.10.008 |
| KeyWord:N902；solvent extraction；copper；waste printed circuit boards |
| Author | Institution |
| KANG Li-wu |
湖北工程职业学院 |
| WANG Qing-yun |
湖北工程职业学院 |
| ZOU Yan-fei |
方大特钢科技股份有限公司 |
|
| Hits: 2052 |
| Download times: 2650 |
| Abstract: |
| Copper was extracted with N902 from ammoniacal leaching solution of waste printed circuit boards. The effects of extraction agent concentration, extraction phase ratio (O/A), initial pH value of extraction solution and extraction time on copper extraction rate were investigated. The results show that copper extraction rate is 98.62% under the optimum conditions including extractant concentration of 15%, O/A=1︰2, initial pH of 10, and extraction time of 2.5 min. Stripping rate of copper is 89.91% with 2 mol/L sulfuric acid solution for 4 min. The solution can meet the requirement of copper electrowinning. |
| Close |