Density functional theory and experimental studies of Cu2+ activation on a cyanide-leached sphalerite surface

다국어 초록 (Multilingual Abstract)

Density functional theory calculations,flotation behavior, X-ray photoelectron spectroscopy, and infraredspectra were combined to reveal the Cu2+ activation mechanism on a cyanide (CN )-leached sphaleritesurface. Low CN adsorption enhanced the activation capability of Cu2+ on the sphalerite surface,whereas the hydrophilicity of the sphalerite increased with increasing CN coverage, which hindered Cu2+ adsorption. As the amount of chemically adsorbed Cu2+ on the sphalerite surface increased, Cu2+ beganto desorb CN , leading to the same result, which is consistent with the low CN coverage.

참고문헌 (Reference)

1 A. P. Chandra, 145 : 97-, 2009

2 H. Zhao, 1-, 2013

3 C. C. Lv, 70 : 141-, 2015

4 W. Wang, 25 : 43-, 2004

5 X. Cui, 38-, 2006

6 Z. He, 25-, 2003

7 B. Guo, 66–68 : 25-, 2014

8 L. Cheng, 94-, 2011

9 J. Liu, 46–47 : 1-, 2013

10 Y. Chen, 27 : 363-, 2011

11 J. P. Perdew, 78 : 1396-, 1997

12 M. D. Seke, 19 : 1-, 2006

13 J. Ralston, 4 : 859-, 1991

14 S. R. Popov, 24 : 111-, 1988

15 A. R. Gerson, 137 : 207-, 1999

16 J. Chen, 118 : 11657-, 2014

17 J. Chen, 46–47 : 136-, 2013

18 X. Long, 370 : 11-, 2016

19 C. Zhao, 95 : 131-, 2016

20 Y. Chen, 23 : 1120-, 2010

21 J. Chen, 363 : 56-, 2010

22 Y. Chen, 23 : 676-, 2010

23 Y. Chen, 27–28 : 65-, 2012

24 M. C. Payne, 64 (64): 1045-, 1992

25 J. P. Perdew, 45 : 13244-, 1992

26 I.W. Wark, "Principles of Flotation" Australasian Institute of Mining and Metallurgy 1955

27 J. Wu, "Modern Infrared Spectroscopic technology and Application" 1992

28 Jian-Hua Chen, "Interactions of xanthate with pyrite and galena surfaces in the presence and absence of oxygen" 한국공업화학회 20 (20): 268-273, 2014

29 F. Jiao, "Fundamental Reserch on the Efficient Separation of Complex Copper-Zinc Sulfide Ore by Flotation" Central South University 2013

30 W. Hu, "Flotation" Metallurgical Industry Press 1982