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| Research Status of Extraction and Purification of Scattered Metal Selenium |
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Received:September 02, 2024
Revised:September 18, 2024
Accepted:September 19, 2024
Published Online:October 29, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.11.011 |
| KeyWord:selenium; extraction; purification; present situation; application |
| Author | Institution |
| LIU Yuanhui |
昆明理工大学 真空冶金国家工程研究中心 山东恒邦冶炼股份有限公司 |
| YANG Bin |
南省有色金属真空冶金重点实验室;昆明理工大学 真空冶金国家工程研究中心 |
| XU Baoqiang |
云南省有色金属真空冶金重点实验室;昆明理工大学 真空冶金国家工程研究中心 |
| JIANG Wenlong |
云南省有色金属真空冶金重点实验室;昆明理工大学 真空冶金国家工程研究中心 |
| ZHA Guozheng |
云南省有色金属真空冶金重点实验室;昆明理工大学 真空冶金国家工程研究中心 |
| LUO Huan |
云南省有色金属真空冶金重点实验室;云南省有色金属真空冶金重点实验室;昆明理工大学 真空冶金国家工程研究中心 |
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| Abstract: |
| Scattered metal selenium is widely used in high-tech fields because of its unique photoelectric properties. More than 90% of the world""s selenium is produced in the comprehensive treatment process of copper anode slime, and a small part is extracted from mercury soot, smoke, acid mud and semiconductor waste. In this paper, the status of selenium resources was summarized, with emphasis on the research status of selenium extraction and purification. At present, the main extraction methods of selenium are full wet method, fire-wet combined method. Because of its simple equipment, high extraction rate and convenient operation, the sulfation roasting method gradually become the main extraction process of selenium. The main purification methods of selenium include physical method, chemical method and physical-chemical combination method. The pretreatment-physical purification method is widely used for its strong adaptability of raw materials, high metal recovery and good product quality, and has a strong industrial application prospect in large-scale production of refined selenium. |
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