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| Pressure Leaching of Multimetallic Sulfur-based Nickel Resources |
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Received:August 05, 2024
Revised:August 06, 2024
Accepted:August 07, 2024
Published Online:September 11, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.10.011 |
| KeyWord:sulphur-based nickel resource; pressure leaching; nickel matte; separation of nickel and copper; precious metals |
| Author | Institution |
| XIE Keng |
矿冶科技集团有限公司 |
| WANG Haibei |
矿冶科技集团有限公司 |
| DENG Tong |
矿冶科技集团有限公司 |
| YANG Biwen |
矿冶科技集团有限公司 |
| ZOU Fakui |
矿冶科技集团有限公司 |
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| Abstract: |
| The multimetallic sulfur-based nickel resources are rich in nickel, cobalt, copper, and precious metals such as gold, silver, platinum, and palladium, offering significant comprehensive recovery value. Pressure leaching technology can effectively facilitate the dissolution of these metal ions into the solution, laying a foundation for subsequent separation and purification, thereby possessing significant application value in the field of nickel metallurgy. It is very important to study the metallurgical mechanism and multimetallic migration pathways of pressure leaching of multimetallic sulfur-based nickel resources for improving metal recovery, optimizing material balance and promoting technological innovation. In this study, based on industrial practice of pressure leaching applied to a certain nickel sulfide concentrate in Zambia, a high-grade nickel matte in Yunnan, and a sulfur-based nickel slag in Xinjiang, the dissolution characteristics and reaction principle of nickel, cobalt, copper, iron, and other precious metals such as gold, silver, platinum and palladium in the process of pressure leaching were analyzed. The multi-component separation and extraction technology based on pressure leaching was discussed. The aim is to provide data support and theoretical guidance for the design and optimization of pressure leaching process, and promote the efficient, clean and sustainable comprehensive utilization of multimetallic sulfur-based nickel resources. |
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