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| Process Study of Acid Leaching for Superalloy Scrap |
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Received:December 27, 2013
Revised:December 30, 2013
Accepted:December 31, 2013
Published Online:June 23, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.07.010 |
| KeyWord:superalloy scrap; acid leaching; orthogonal experiment; Ni; Co; Cr; Ta |
| Author | Institution |
| WANG Jingkun |
西北有色金属研究院 陕西 西安 |
| Wang Zhijun |
西北有色金属研究院 陕西 西安 |
| Wu Xian |
西北有色金属研究院 陕西 西安 |
| Guo Rui |
西北有色金属研究院 陕西 西安 |
| Li Jin |
西北有色金属研究院 陕西 西安 |
| Ma Guang |
西北有色金属研究院 陕西 西安 |
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| Abstract: |
| Superalloy scrap was leached with sulfuric acid as leaching agent by orthogonal experiments. The optimum leaching conditions were investigated. The results show that the leaching rate of Ni, Co is 99.5% above, that of Cr is 96% above and that of Ta is 2% below under the following optimum conditions including concentration of sulfuric acid of 343 g/L, leaching temperature of 80 ℃, and leaching time of 3 h. |
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