Recovery of Valuable Metals and NaCl from Cobalt-Rich Crust and Industrial Waste Salt via Roasting Coupling Technology
文献类型：期刊论文
| 作者 | Ju, Jinrong1,2,3; Feng, Yali2; Li, Haoran3; Li, Xin1,2,3; Zhang, Qian2 |
| 刊名 | JOURNAL OF SUSTAINABLE METALLURGY
 |
| 出版日期 | 2021-11-19 |
| 页码 | 14 |
| 关键词 | Ocean cobalt-rich crust Industrial waste salt Reduction roasting Pyrolysis Metals leaching Recovery of NaCl |
| ISSN号 | 2199-3823 |
| DOI | 10.1007/s40831-021-00464-x |
| 英文摘要 | Ocean cobalt crust has attracted much attention due to the high economic potential of various metals. A large amount of industrial waste salt is usually filled or deposited without treatment, causing severe environmental pollution and waste of salt resources. In this work, to recover valuable metals (Cu, Co, Ni, and Mn) and NaCl from cobalt-rich crust and industrial waste salt and diminish energy consumption, a roasting coupling technology has been proposed and process and mechanism were investigated. In the reduction roasting process, the organic matter in industrial waste salt was continuously pyrolyzed, producing a large amount of reducing gases such as CO, CH4, and H-2, which could react with the MnO2 and Fe2O3 in the cobalt-rich crust to destroy its original crystal structure. The results revealed that the reduction process of cobalt-rich crust was gradually completed from the surface layer of particles to the core. The NaCl and Cu, Co, Ni, and Mn in the roasting residues can be recovered by water leaching and acid leaching, respectively. Under the mass ratio of industrial waste salt to ocean cobalt-rich crust of 7:5, the roasting temperature of 973.15 K, and the roasting time of 25 min, the leaching efficiency of Cu, Co, Ni, and Mn reached 96.03%, 97.98%, 98.52%, and 99.74%, respectively, and the 98.49% recovery rate of NaCl could be achieved. The present process may simultaneously realize the extraction of metals from the cobalt-rich crust and the resource utilization of waste salt. [GRAPHICS] . |
| WOS关键词 | FERROMANGANESE NODULES ; ORGANIC-MATTER ; MANGANESE ; REDUCTION ; PYROLYSIS |
| 资助项目 | long-term special project for National[JS-KTHT-2019-01] ; key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China |
| WOS研究方向 | Science & Technology - Other Topics ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000720579500001 |
| 出版者 | SPRINGER |
| 资助机构 | long-term special project for National ; key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/51054]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Feng, Yali |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ju, Jinrong,Feng, Yali,Li, Haoran,et al. Recovery of Valuable Metals and NaCl from Cobalt-Rich Crust and Industrial Waste Salt via Roasting Coupling Technology[J]. JOURNAL OF SUSTAINABLE METALLURGY,2021:14. |
| APA | Ju, Jinrong,Feng, Yali,Li, Haoran,Li, Xin,&Zhang, Qian.(2021).Recovery of Valuable Metals and NaCl from Cobalt-Rich Crust and Industrial Waste Salt via Roasting Coupling Technology.JOURNAL OF SUSTAINABLE METALLURGY,14. |
| MLA | Ju, Jinrong,et al."Recovery of Valuable Metals and NaCl from Cobalt-Rich Crust and Industrial Waste Salt via Roasting Coupling Technology".JOURNAL OF SUSTAINABLE METALLURGY (2021):14. |
入库方式： OAI收割
来源：过程工程研究所
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