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| Industrial Test to Recover Ammonium Rhenate from Electrolytic Solution of Superalloy |
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Received:February 01, 2018
Revised:February 01, 2018
Accepted:February 05, 2018
Published Online:June 15, 2018
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| DOI：doi：10.3969/j.issn.1007-7545.2018.07.008 |
| KeyWord:rhenium; superalloy; ammonium rhenate; ion exchange; industrial test |
| Author | Institution |
| CHEN Kun-kun |
西北有色金属研究院 |
| XU Wan-xiang |
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 |
| CAO Qi-gao |
西北有色金属研究院 |
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| Abstract: |
| Industrial test to recover Re from electrolytic solution of superalloy was performed by moving-dense-bed column adsorption, fixed-bed column desorption, and evaporative cooling crystallization. The results show that the entire ion-exchange system can be continuously operated by moving-dense-bed column adsorption, fixed-bed column desorption and regeneration. Rhenium concentration in effluent drops to 1 mg/L applying 15BVs 8%NH4SCN solution to desorb Re. Rhenium adsorption rate of regenerated resin is 99.97% and Re concentration in adsorbed solution drops to 0.4 mg/L after loaded resin regenerated with 20BVs 2 mo/L H2SO4 solution. Mo precipitation rate is 99.69% applying 6 times of theoretical amount of CaCl2 to precipitate Mo. Purity of ammonium rhenate product is 99.99%. |
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