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- Title
方铅矿新型抑制剂 BK508C 作用机理研究.
- Authors
卢 通; 吴桂; 朱阳戈; 赵志强; 刘崇峻; 钟在定; 马艳红; 刘慧南
- Abstract
In view of the problems of high toxicity and serious pollution in the process of molybdenum-lead separation by using phosphonox to suppress lead and float molybdenum, the experimental study on replacing phosphonox with new environment-friendly depressant BK508C was carried out. The effect of BK508C on the flotation behavior of molybdenite and galena was studied by single mineral and artificial mixed mineral flotation tests, and the mechanism was studied by molecular simulation, contact angle test, adsorption measurement and infrared spectroscopy analysis. The recovery of galena can be reduced from 95% to 10. 82% when the dosage of BK508C was 12.5 mg/L in the single mineral flotation test, and the separation coefficient of artificial mixed ore separation test was 6. 32, which was higher than that of phosphonox, indicating that BK508C can replace phosphonox reagent to realize the separation of molybdenum and lead. The mechanism study showed that BK508C and Pb2+ form a complex in a 1:1 coordination mode, and the complex was chemically adsorbed on the surface of galena, and the adsorption. on the surface of molybdenite was weak, so that the selective lead suppression and molybdenum flotation can be realized.
- Subjects
LEAD; CONTACT angle; GALENA; INFRARED spectroscopy; MOLYBDENUM; MOLYBDENITE; ORE-dressing
- Publication
Nonferrous Metals (Mineral Processing Section), 2023, Issue 3, p158
- ISSN
1671-9492
- Publication type
Article
- DOI
10.3969/j.issn.1671-9492.2023.03.020