Study on Application of Intensifying Depression Talcum in the Copper Sulphide Flotation


Article Preview

Talcum is a common gangue with which sulphide ores are associated, it has an adverse impact on sulphide ores flotation and product index due to its high natural floatability. In this paper it takes talcum-bearing copper sulphide ores from DongChuan in Yunnan province as experimental samples, and a series of tests on depressing talcum in the copper suphide ore flotation were carried out. Results show that when took the composed CMC and sodium hexametaphosphate as depressant with respective dosage 200g/t and 300g/t, it obtained a favourableeffect. In addition, depression effect can get improved with the dosage of collector increasing properly, it shows that when took the composed CMC and sodium hexametaphosphate as depressant, it can make the flotation process stable.It employed rougher-scavenger-three cleaners system as the closed-circuit flowsheet, and attained a Cu concentrate product of whom grade and recovery is 16.16%, 78.78% respectively.The results might contribute to dispose some similar talcum-bearing sulphide ores in the future.



Edited by:

Xiaochun Tang, Wei Zhong, Dachang Zhuang, Chunsheng Li and Yanyan Liu






G. D. Li et al., "Study on Application of Intensifying Depression Talcum in the Copper Sulphide Flotation", Applied Mechanics and Materials, Vols. 295-298, pp. 3043-3049, 2013

Online since:

February 2013




[1] X.G. Hu. Non-ferrous metal sulphide ore beneficiation [M]. Beijing: Metallurgical industry press, 1992. In Chinese.

[2] L.G. Zhou. Ore foundation study(The second edition)[M]. Beijing: Metallurgical industry press, 2002. In Chinese.

[3] M.X. Guo. flotation[M]. Xuzhou: China University of Mining and Technology press, 1989. In Chinese.

[4] Wang J, Somasundaran P, Nagaraj D R. Adsorption mechanism of guar gum at solid—liquid interfaces[J]. Minerals Engineering, 2005, (18): 77—81.

DOI: 10.1016/j.mineng.2004.05.013

[5] M orris G E, Fornasiero D, Ralston J. Polymer depressants at the talc—water interface: adsorption isotherm, microflotation and electrokinetic studies[J]. International Journal of Mineral Processing, 2002, (67): 211—227.

DOI: 10.1016/s0301-7516(02)00048-0

[6] C.M. He, Q.S. Liu, Discussion of high talc type molybdenum iron ore beneficiation technology in the mining area of Shang Fanggou[J]. China Mine Engineering, 2006, 35(1): 19—22. In Chinese.

[7] C.P. Tan, Q.M. Feng, L.M. Ou. The research and practice about aggrandizement flotation of lean ore in Jinping Baimazhai nickel mine[J]. nonferrous metals, 2011, (3): 16—19. In Chinese.

[8] G.S. Liu, Q.M. Feng, L.M. Ou, etc. Copper ion and nickel ion to the talc flotation influence and mechanism of action[J]. Journal of the Chinese Ceramic Society, 2005, 33(8): lO18—1022. In Chinese.

[9] X.W. Dong, J. Liu, L. Zheng, etc. Preliminary desliming experimental study about copper and nickel sulphide ore flotation [J]. conservation and utilization of mineral resources, 2003, (2): 28—30. In Chinese.

[10] Beattie D A, Huynh L, Kaggwa G B, et a1. Influence of adsorbed polysaccharides and polyacrylamides on talc flotation[J]. International Journal of Mineral Processing, 2006, (78): 238—249.

DOI: 10.1016/j.minpro.2005.11.001

[11] G.C. Pan, Research about the flotability of talc in sulphide ore flotation system [J]. hunan nonferrous metals, 2012, (1): 9—12. In Chinese.

[12] Y.Z. Liang, W.Y. Xue, Research about Talc flotation foam stability and flotation behavior [J]. 1994, (4): 21—23. In Chinese.

[13] S.S. Lu, Talc crystal chemistry research and in non-ferrous metal sulphide ore dressing of flotation actuality and the practice [J]. 2010, (3): 8—11. In Chinese.

[14] A.Q. Li, Preliminary exploration about refractory copper ore separation principle scheme in Wax gourd mountain [J]. nonferrous metals (beneficiation part), 1998(1): 6—9. In Chinese.

In order to see related information, you need to Login.