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Electrochemical aspects of grinding media-mineral interaction on sulphide flotation

  • Special Issue On Mineral Processing
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Abstract

Galvanic interaction between electrically conducting minerals may affect the mineral surface and influence their flotabilities. The metallographic examinations as well as hardness measurements have been made with grinding media. Rest potential, combination potential, galvanic current and polarization studies were made to understand the probable electrochemical interaction between grinding media and chalcopyrite. The galvanic contact lowered the flotability of chalcopyrite. AES and ESCA indicated that galvanic coupling of chalcopyrite with grinding media resulted in the formation of oxy-hydroxide species of iron on the chalcopyrite surface. Scanning electron microscopy was used to study the surface morphological changes on the grinding media due to galvanic interaction with chalcopyrite.

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References

  • Adam K and Iwasaki I 1984Miner. Metall. Process. 1 81

    CAS  Google Scholar 

  • Learmont M E and Iwasaki I 1984Miner. Metall. Process. 1 136

    CAS  Google Scholar 

  • Nakazawa H and Iwasaki I 1985Miner. Metall. Process. 2 206

    CAS  Google Scholar 

  • Nakazawa H and Iwasaki I 1986Int. J. Miner. Process. 18 203

    Article  CAS  Google Scholar 

  • Natarajan K A and Iwasaki I 1973Trans. SME (AIME) 254 22

    CAS  Google Scholar 

  • Pavlica J J and Iwasaki I 1982Trans. SME (AIME) 272 1885

    Google Scholar 

  • Perez M 1982 M.Sc. thesis, University of Minnesota

  • Rey M and Formanek V 1960 inProc. 5th Int. Min. Proc. Congress. Inst. Mining and Met. London p. 343

  • Thornton E 1973 inProc. 5th Annual Meeting of Canadian Mineral Processors, Dept. Energy, Mines and Resources, Ottawa p. 224

    Google Scholar 

  • Wagner C D 1984 inPractical surface analysis by Auger and X-ray photoelectron spectroscopy (eds) D Briggs and M P Seah (New York: John Wiley) p. 477

    Google Scholar 

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Authors and Affiliations

  1. Department of Metallurgy, Indian Institute of Science, 560 012, Bangalore, India

    M K Yelloji Rao & K A Natarajan

Authors
  1. M K Yelloji Rao
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  2. K A Natarajan
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Yelloji Rao, M.K., Natarajan, K.A. Electrochemical aspects of grinding media-mineral interaction on sulphide flotation. Bull. Mater. Sci. 10, 411–422 (1988). https://doi.org/10.1007/BF02744654

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  • DOI: https://doi.org/10.1007/BF02744654

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