|
| Efficient Removal of As and Fe from Sulfate Solution Containing Ga and Ge |
|
Received:September 11, 2023
Revised:September 29, 2023
Accepted:October 07, 2023
Published Online:November 30, 2023
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2024.01.008 |
| KeyWord:neutralization and precipitation; arsenic removal; iron removal; Ga; Ge |
| Author | Institution |
| PENG Mingxing |
中金岭南丹霞冶炼厂 |
| LIAO Bin |
江西理工大学材料冶金化学学部 |
| WANG Jie |
江西理工大学材料冶金化学学部 |
| ZENG Muzhi |
中金岭南丹霞冶炼厂 |
| LIAO Wenxun |
中金岭南丹霞冶炼厂 |
| LIAO Chunfa |
江西理工大学 |
| LIU Fupeng |
江西理工大学材料冶金化学学部 |
| ZHANG Wei |
中金岭南丹霞冶炼厂 |
|
| Hits: 1531 |
| Download times: 1451 |
| Abstract: |
| As and Fe are the main impurity elements in zinc hydrometallurgy process of recovery of Ga and Ge, and the extraction process is usually applied to remove As and Fe, however, the obtained As and Fe strip solution generally contains a small amount of Ga and Ge. In order to achieve efficient recovery of Ga and Ge, As and Fe were separated from Ga and Ge by neutralization precipitation method, the effects of precipitation terminal pH value, reaction temperature, reaction time, stirring speed and other parameters on the precipitation rate of metal ions were investigated. The results show that the removal rate of Fe and As is 92.80% and 98.13% respectively, and the loss rate of Ga and Ge is 45.61% and 7.35% respectively under the optimum conditions including terminal pH value of 2.5, reaction temperature of 25 ℃, reaction time of 1 h, and stirring speed of 240 r/min. The Ga and Ge lost in the neutralizing residue can be washed with weak acid solution, and the pickling liquid and the neutralizing liquid are returned to the extraction system to recover Ga and Ge, so as to improve the direct yield of Ga and Ge in the comprehensive recovery process. |
| Close |
|
|
|