|
| Experiment on Low Acid Leaching and Liquid-Solid Separation of Neutral Leaching Residue of Zinc Calcine |
|
Received:September 01, 2019
Revised:October 16, 2019
Accepted:October 17, 2019
Published Online:December 18, 2019
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2020.01.001 |
| KeyWord:zinc; hydrometallurgy; neutral leaching residue; low acid leaching; flocculation settling |
| Author | Institution |
| LIU San-ping |
北京矿冶研究总院 |
| QIN Shu-chen |
北京矿冶研究总院 |
| ZHENG Chao-zhen |
北京矿冶研究总院 |
| LI Qiang |
北京矿冶研究总院 |
|
| Hits: 2215 |
| Download times: 2589 |
| Abstract: |
| Neutral leaching residue of zinc calcine was tested by low acid leaching and flocculation settling of leaching slurry. Effects of leaching time, L/S, and temperature on low acid leaching and flocculation settling were investigated. In order to simulate industrial production, low acid leaching experiments were carried out with neutral leaching underflow and waste electrolyte. Zinc in slag is 20.67%, slag rate of low acid leaching is 46%, and zinc leaching rate is 79.63% under the optimum leaching conditions including leaching temperature of 85 ℃, leaching time of 4 h, and consumption of waste electrolyte for 1 m3 neutral leaching underflow of 0.84-0.96 m3. |
| Close |