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| HYDROPHOBICITY－HYDROPHILICITY BALANCE RELATIONSHIPSFORCOLLECTORLESSFLOTATIONOFSULPHIDEMINERALS | |
| 引用本文： | Sun Shuiyu,Wang Dianzuo,Li Bodan(Department of Mineral Engineering,Central South University of Technology,Changsha,410083,China). HYDROPHOBICITY－HYDROPHILICITY BALANCE RELATIONSHIPSFORCOLLECTORLESSFLOTATIONOFSULPHIDEMINERALS[J]. 中南工业大学学报(英文版), 1994, 1(1): 68-73. DOI: 10.1007/BF02652088 |
| 作者姓名： | Sun Shuiyu Wang Dianzuo Li Bodan(Department of Mineral Engineering Central South University of Technology Changsha 410083 China) |
| 作者单位： | Department of Mineral Engineering，Central South University of Technology，Changsha，410083，China |
| 摘 要： | ＨＹＤＲＯＰＨＯＢＩＣＩＴＹ－ＨＹＤＲＯＰＨＩＬＩＣＩＴＹＢＡＬＡＮＣＥＲＥＬＡＴＩＯＮＳＨＩＰＳＦＯＲＣＯＬＬＥＣＴＯＲＬＥＳＳＦＬＯＴＡＴＩＯＮＯＦＳＵＬＰＨＩＤＥＭＩＮＥＲＡＬＳＨＹＤＲＯＰＨＯＢＩＣＩＴＹ－ＨＹＤＲＯＰＨＩＬＩＣＩＴＹＢＡＬＡ... |
| 收稿时间： | 1994-04-06 |
Hydrophobicity-hydrophilicity balance relationships for collectorless flotation of sulphide minerals |
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| Shuiyu Sun, Dianzuo Wang and Bodan Li. Hydrophobicity-hydrophilicity balance relationships for collectorless flotation of sulphide minerals[J]. Journal of Central South University of Technology, 1994, 1(1): 68-73. DOI: 10.1007/BF02652088 | |
| Authors: | Shuiyu Sun Dianzuo Wang Bodan Li |
| Affiliation: | (1) Department of Mineral Engineering, Central South University of Technology, 410083 Changsha, China |
| Abstract: | Hydrophobicity-hydrophilicity balance relationships for self-induced and sodium sulfide-induced flotations of sulphide minerals have been established, through solvent extraction-chemical analysis of neutral sulphur (S°) on the surfaces, measurement of redox potential (E pt) of flotation pulp, and flotation tests. They may be’indicated as [S°]/[OH−] and [S°]/([OH−]+[HS−]), respectively. The neutral suphur (S°) was considered to be responsible for the hydrophobicity, the amount ([S°]) of which was controlled byE pt. The critical value of [S°] was proposed as a new concept. The hydrophilicity was contributed to OH− ion for the self-induced flotation, and to both HS− and OH− ions for the Na2S-induced flotation. At a given pH value, hydrophobicity and floatability increase with [S°]. For different pH values, a higher pH value results in stronger hydrophilicity, and hence the hydrophobicity and flotation require more [S°]. Lower pH values are in correspondence with the smaller [S°]. Project Supported by the National Natural Science Foundation of China Synopsis of the first author Sun Shuiyu, born in May, 1965, received Ph. D in mineral processing in 1991, major research field is focused on chemistry in sulfide minerals flotation |
| Keywords: | hydrophobicity hydrophilicity balance induction flotation |
| 本文献已被 CNKI SpringerLink 等数据库收录！ | |
