| Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation | |
| Wang, Long1; Sun, Yuan2,3; Wang, Shi-yang2,3; Zhang, Ting-an1; Lu, Guo-zhi1 | |
| Corresponding Author | Sun, Yuan(yuansun@imr.ac.cn) ; Zhang, Ting-an(zta2000@163.net) |
| 2023 | |
| Source Publication | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| ISSN | 1003-6326 |
| Volume | 33Issue:1Pages:304-314 |
| Abstract | To improve the recovery efficiency of strategic metals from superalloy scrap, an ultrasonic-assisted leaching method was proposed. During the ultrasonic-assisted leaching process, at 60 min, the leaching rates of Re, Ni, Co, Al, Cr, and W are 92.3%, 95.2%, 98.5%, 98.7%, 97.5%, and 27.2%, respectively, which are far superior to those in the normal leaching process at 120 min. The improvement in leaching efficiency can be attributed to the physical and chemical coupling effects of ultrasonic cavitation. The physical effect can prevent the formation of the impeded dissolution layer and encourage contact between solution and superalloy scrap, which improves the leaching rates of strategic metals. The chemical effect can promote the production of hydroxyl radicals in the HCl-H2O2 system, which can enhance the potential of the leaching system, resulting in stimulation of the chemical oxidation process of Re to ReO4-. |
| Keyword | strategic metals superalloy scrap leaching ultrasonic-assisted leaching hydroxyl radical |
| Funding Organization | Chinese Academy of Sciences, China ; Science and Technology Project of Shen -Fu Reform and innovation Demonstration Zone, China ; National Natural Science Foundation of China |
| DOI | 10.1016/S1003-6326(22)66108-9 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Chinese Academy of Sciences, China[E055A101] ; Science and Technology Project of Shen -Fu Reform and innovation Demonstration Zone, China[2021JH15] ; National Natural Science Foundation of China[U1710257] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000923319900001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175137 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Sun, Yuan; Zhang, Ting-an |
| Affiliation | 1.Northeastern Univ, Key Lab Ecol Utilizat Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Joint Innovat Lab Green Comprehens Utilizat Supera, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Long,Sun, Yuan,Wang, Shi-yang,et al. Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2023,33(1):304-314. |
| APA | Wang, Long,Sun, Yuan,Wang, Shi-yang,Zhang, Ting-an,&Lu, Guo-zhi.(2023).Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,33(1),304-314. |
| MLA | Wang, Long,et al."Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 33.1(2023):304-314. |
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