Collectorless flotation of Chalcocite by controlling redox potential | ||
| Journal of Mining and Environment | ||
| مقاله 4، دوره 3، شماره 2، مهر 2012، صفحه 99-102 اصل مقاله (414.31 K) | ||
| نوع مقاله: Case Study | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2012.87 | ||
| نویسندگان | ||
| sima razmjouee1؛ mahmood abdollahy* 2؛ seyed mohammad javad koleini3 | ||
| 1auther | ||
| 2tarbiat modarres university | ||
| 3tarbiat modares university | ||
| چکیده | ||
| Using microflotation method, this study explored the collectorless flotation of Chalcocite and its dependence on the redox potential of pulp . Electrochemical studies were performed by cyclic voltammetry in specific potential ranges and at different pH values. The results show that significant floatability of Chalcocite occurs in the specific reducing conditions. By increasing potentials, on the other hand, the floatability of Chalcocite is reduced. The effect of pH was also examined: At pH=4, the maximum recovery of 73%, was obtained at E= -222 mV (Eh= -17); and at pH=9, the maximum recovery of 71% was obtained at E= -501 mV (Eh= -296). On the basis of the results obtained, the possible mechanisms of collectorless flotation of Chalcocite in different conditions were discussed. | ||
| کلیدواژهها | ||
| collectorless flotation؛ redox potential؛ Chalcocite؛ cyclic voltammetry | ||
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آمار تعداد مشاهده مقاله: 4,082 تعداد دریافت فایل اصل مقاله: 4,015 |
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