THE ROLE OF NA2S2O5 AND ACTIVATED CARBON ON THE SELECTIVE FLOTATION OF CHALCOPYRITE FROM A COPPER ORE USING A DITHIOPHOSPHINE-TYPE COLLECTOR
作者： Alim Gül
DOI: 10.1080/08827500601141750
关键词:
摘要: This article presents the results of an investigation into effects sodium meta bi-sulphite (Na2S2O5) and activated carbon on selective flotation chalcopyrite from pyrite. In Kure Copper Concentrator, a concentrate is produced with around 17.5% Cu content using lime as depressant. Flotation tests conducted in this employ Na2S2O5 regulating reagents reveal that grades up to 28% could easily be achieved. The deactivation mechanism S2O5 2− may similar SO3 such decomposition collector and/or oxidized surface species effective selectivity. Activated removes pulp, creating collectorless conditions. Conditioning time important parameter selectivity decreases dosage used.
sci-hub.se 参考文章(8)
R. Houot, D. Duhamet, Floatability of chalcopyrite in the presence of dialkyl-thionocarbamate and sodium sulfite International Journal of Mineral Processing. ,vol. 37, pp. 273- 282 ,(1993) , 10.1016/0301-7516(93)90031-5
R. Houot, D. Duhamet, The use of sodium sulphite to improve the flotation selectivity between chalcopyrite and galena in a complex sulphide ore Minerals Engineering. ,vol. 5, pp. 343- 355 ,(1992) , 10.1016/0892-6875(92)90216-V
V. Bozkurt, Z. Xu, J.A. Finch, Effect of Depressants on Xanthate Adsorption on Pentlandite and Pyrrhotite: Single vs Mixed Minerals Canadian Metallurgical Quarterly. ,vol. 38, pp. 105- 112 ,(1999) , 10.1016/S0008-4433(99)00004-X
S.R. Grano, H. Cnossen, W. Skinner, C.A. Prestidge, J. Ralston, Surface modifications in the chalcopyrite-sulphite ion system, II. Dithiophosphate collector adsorption study International Journal of Mineral Processing. ,vol. 50, pp. 27- 45 ,(1997) , 10.1016/S0301-7516(97)00003-3
W.Z Shen, D Fornasiero, J Ralston, Flotation of sphalerite and pyrite in the presence of sodium sulfite International Journal of Mineral Processing. ,vol. 63, pp. 17- 28 ,(2001) , 10.1016/S0301-7516(00)00067-3
S.R. Grano, M. Sollaart, W. Skinner, C.A. Prestidge, J. Ralston, Surface modifications in the chalcopyrite-sulphite ion system. I. collectorless flotation, XPS and dissolution study International Journal of Mineral Processing. ,vol. 50, pp. 1- 26 ,(1997) , 10.1016/S0301-7516(96)00046-4
S.R. Grano, C.A. Prestidge, J. Ralston, Sulphite modification of galena surfaces and its effect on flotation and xanthate adsorption International Journal of Mineral Processing. ,vol. 52, pp. 1- 29 ,(1997) , 10.1016/S0301-7516(97)00049-5
T.N Khmeleva, D.A Beattie, T.V Georgiev, W.M Skinner, Surface study of the effect of sulphite ions on copper-activated pyrite pre-treated with xanthate Minerals Engineering. ,vol. 16, pp. 601- 608 ,(2003) , 10.1016/S0892-6875(03)00133-X