| Molten-salt enhanced anodic oxidation for upcycling alloy scraps | |
| Zhao, Yan1; Chen, Xiang1; Qu, Jiakang1; Xie, Hongwei1; Du, Kaifa2; Xing, Pengfei1; Wang, Dihua2; Sun, Yuan3; Yin, Huayi1,2,4 | |
| Corresponding Author | Yin, Huayi(yinhuayi@whu.edu.cn) |
| 2022-09-01 | |
| Source Publication | CORROSION SCIENCE
 |
| ISSN | 0010-938X |
| Volume | 206Pages:11 |
| Abstract | Reclaiming valuable metals from spent alloys involves energy-intensive pulverization and the sluggish dissolution rate. Herein, we propose an enhanced corrosion strategy to convert alloy scraps to oxide powders. The oxidation rate reaches similar to 1.67 mm h(-1) in molten CaCl2-NaCl-CaO at 700 degrees C because Cl- excludes passivation and enables continuous oxidation. In addition, the soluble CaO in molten CaCl2-NaCl prevents the generation of transition metal chlorides, which relieves using the expensive ion-selective membrane to eliminate the parasitic reaction. Overall, the molten salt enhanced anodic corrosion provides a green and general way to achieve the pulverization and oxidation of various alloy scraps. |
| Keyword | Hard alloy scraps Electrochemical corrosion Oxygen reduction Molten salt Recycling |
| Funding Organization | Fundamental Research Funds for Central Universities, China ; 111 Project, China ; Xingliao Project, China |
| DOI | 10.1016/j.corsci.2022.110516 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Fundamental Research Funds for Central Universities, China[N2025034] ; 111 Project, China[B16009] ; Xingliao Project, China[XLYC1807042] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000834287000002 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174603 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yin, Huayi |
| Affiliation | 1.Northeastern Univ, Sch Met, Key Lab Ecol Met Multimetall Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110819, Peoples R China 4.Northeastern Univ, Key Lab Data Analyt & Optimizat Smart Ind, Minist Educ, Shenyang 110819, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, Yan,Chen, Xiang,Qu, Jiakang,et al. Molten-salt enhanced anodic oxidation for upcycling alloy scraps[J]. CORROSION SCIENCE,2022,206:11. |
| APA | Zhao, Yan.,Chen, Xiang.,Qu, Jiakang.,Xie, Hongwei.,Du, Kaifa.,...&Yin, Huayi.(2022).Molten-salt enhanced anodic oxidation for upcycling alloy scraps.CORROSION SCIENCE,206,11. |
| MLA | Zhao, Yan,et al."Molten-salt enhanced anodic oxidation for upcycling alloy scraps".CORROSION SCIENCE 206(2022):11. |
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