|
| Recovery of Water-soluble Zinc from Direct Leaching Residue of Zinc Concentrate by Multi-stage Countercurrent Washing |
|
Received:October 13, 2013
Revised:October 15, 2013
Accepted:October 17, 2013
Published Online:March 31, 2014
|
| View Full Text View/Add Comment Download reader |
| DOI：10.3969/j.issn.1007-7545.2014.04.004 |
| KeyWord:direct leaching residue; water-soluble zinc; countercurrent washing; water balance |
| Author | Institution |
| Ru Zhen-guang |
中国环境科学研究院 清洁生产中心,北京 |
| Pan Cen-xuan |
中国环境科学研究院 清洁生产中心,北京 |
| Miao Hua-lei |
株洲冶炼集团股份有限公司 |
| Liu Gui-hua |
中国环境科学研究院 清洁生产中心,北京 |
|
| Hits: 2172 |
| Download times: 3051 |
| Abstract: |
| Water-soluble zinc (WSZ) was recovered from direct leaching residue (DLR) of zinc concentrate by multi-stage countercurrent washing process with membrane filter press. The results show that the recovery of WSZ could be reduced from 4.98% to 0.60% in continuous seven experiment periods under the conditions of dosage of clear water accounting for 30% of weight of wet DLR and three-stage countercurrent washing process. The washing solution with high concentration of WSZ can return to leaching solution preparation system without affecting water balance in the whole process. |
| Close |