|
| Study on Recovery and Purification of Tantalum from Tantalum-Enrichment Slag |
|
Received:April 12, 2019
Revised:April 16, 2019
Accepted:April 17, 2019
Published Online:August 16, 2019
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2019.09.014 |
| KeyWord:tantalum-enrichment slag; leaching; MIBK; extraction |
| Author | Institution |
| XU Wan-xiang |
西安瑞鑫科金属材料有限责任公司 |
| LI Bo |
西安瑞鑫科金属材料有限责任公司 |
| WANG Jing-kun |
西安瑞鑫科金属材料有限责任公司 |
| LI Jin |
西安瑞鑫科金属材料有限责任公司 |
| ZHOU Yan |
西安瑞鑫科金属材料有限责任公司 |
| GUO Rui |
西安瑞鑫科金属材料有限责任公司 |
|
| Hits: 2195 |
| Download times: 2130 |
| Abstract: |
| Leaching and extraction of tantalum-enrichment slag were conducted. The results show that tantalum leaching rate is 99% above under the leaching conditions including leaching agent of 65%HF, temperature of 60 ℃, leaching time of 1 h, and L/S=4/1. Extraction rate of Ta, Hf, Ti, W in MIBK-HF-H2SO4 system is 86%, 1.6%, 0.2% and 5.8%, respectively, under the conditions including mass concentration of tantalum of 25 g/L, extraction time of 3 min, sulfuric acid concentration of 2.5 mol/L, and O/A=1/2. Separation of tantalum from mixed solution of hafnium, titanium, and tungsten is realized. |
| Close |
|
|
|