|
| Study on the recovery of vanadium and molybdenum from the spent catalyst |
|
Received:June 08, 2018
Revised:June 08, 2018
Accepted:June 13, 2018
Published Online:May 13, 2019
|
| View Full Text View/Add Comment Download reader |
| DOI： |
| KeyWord:spent catalyst; vanadium; molybdenum; alkaline roasting; water leaching |
| Author | Institution |
| MA Zhiyuan |
Guangdong Institute of Resources Comprehensive Utilization,Guangdong Academy of Sciences |
| LIU Yong |
Guangdong Institute of Resources Comprehensive Utilization,Guangdong Academy of Sciences |
| ZHOU Jikui |
Guangdong Institute of Resources Comprehensive Utilization,Guangdong Academy of Sciences |
| LIU Mudan |
Guangdong Institute of Resources Comprehensive Utilization,Guangdong Academy of Sciences |
| LIU Zhenzhen |
Guangdong Institute of Resources Comprehensive Utilization,Guangdong Academy of Sciences |
|
| Hits: 2140 |
| Download times: 1367 |
| Abstract: |
| The study of alkaline roasting-water leaching of the spent catalyst containing vanadium and molybdenum has been investigated. The results showed that the optimized parameters of the alkaline roasting-water leaching are as follow: roasting temperature of 700°C, addition of Na2CO3 of 40%(mNa2CO3/(mNa2CO3 mraw ore), roasting time of 120 min, leaching temperature of 90°C, solid-liquid ratio of 0.20 g.mL-1, leaching time of 90 min and stirring speed of 400 r.min-1. The comparative experimental study of three different methods (alkaline roasting-water leaching, oxidizing roasting-alkaline leaching and atmospheric pressure alkaline leaching) has been investigated. The best method of treatment of the spent catalyst containing vanadium and molybdenum is the process of alkaline roasting-water leaching. The recoveries of vanadium and molybdenum are 97.61% and 97.33%, respectively. |
| Close |
|
|
|