| Electrochemical flotation of ethyl xanthate-pyrrhotite system |
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| 作者姓名： | 张芹 胡岳华 顾帼华 聂珍缓 |
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| 作者单位： | School of Resources Processing and Bio-engineering，Central South University，Changsha 410083，China，School of Resources Processing and Bio-engineering，Central South University，Changsha 410083，China，School of Resources Processing and Bio-engineering，Central South University，Changsha 410083，China，School of Resources Processing and Bio-engineering，Central South University，Changsha 410083，China |
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| 基金项目： | 国家自然科学基金，Pre-Research of the National Basic Research Program of China |
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| 摘 要： | 1 INTRODUCTIONPyrrhotite(Fe1-xS ,0
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| 关 键 词： | 磁黄铁矿 黄原酸乙酯 电化学浮选 周期伏安法 |
Electrochemical flotation of ethyl xanthate-pyrrhotite system |
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| ZHANG Qin,HU Yue-hua,GU Guo-hua,NIE Zhen-yuan.Electrochemical flotation of ethyl xanthate-pyrrhotite system[J].Transactions of Nonferrous Metals Society of China,2004,14(6):1174-1179. |
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| Authors: | ZHANG Qin HU Yue-hua GU Guo-hua NIE Zhen-yuan |
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| Abstract: | The flotation behavior of pyrrhotite was investigated by using ethyl xanthate as a collector. The results show that pyrrhotite has good floatability from pH 2 to 11, and poor flotability when pH＞12. The reagents adjusting potential are ammonium persulfate ((NH4)2 S2 O8) and sodium dithionite (Na2 S2O4 ). The flotation of pyrrhotite is dependent on pulp potential at certain pH value. The potential-pH range for pyrrhotite flotation was established. Cyclic voltammetry and FTIR spectroscopy analysis show that the major adsorption product of ethyl xanthate on pyrrhotite is dixanthogen. The intensity of FTIR signals of dixanthogen adsorbed on pyrrhotite and the anode current of a pyrrhotite electrode and flotation response of pyrrhotite are correlated with pulp potentials. |
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| Keywords: | ethyl xanthate pyrrhotite electrochemical flotation FTIR spectroscopy cyclic voltammetry |
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