Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Recovery of Nickel and Copper from Scraped Nickel Condensers

  • Liang, Ruilu (Faculty of System Science and Technology, Akita Prefectural University) ;
  • Kikuchi, Eiji (Faculty of System Science and Technology, Akita Prefectural University) ;
  • Kawabe, Yoshishige (Faculty of System Science and Technology, Akita Prefectural University) ;
  • Sakamoto, Hiroshi (Faculty of System Science and Technology, Akita Prefectural University) ;
  • Fujita, Toyohisa (Faculty of Engineering and Resource Science, Akita University)
  • Published : 2001.10.01
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Abstract

Magnetic separation and sulphidization-flotation for recovery of nickel and copper from two types of scraped condenser wastes, containing 8- l4% nickel and 2-4% copper, were studied. The effects of magnetic field intensities, classification, and grinding on the recovery of nickel and copper were investigated. According to the characteristics of nickel and copper in the scraps, classification-magnetic separation, different magnetic field intensities, and stages-grinding-cleaning of rough concentrate were investigated. The nickel concentrates containing 38-65% nickel with 84-97% recoveries and the copper concentrates containing 25-43% nickel with 35-60% recoveries were obtained by classification-magnetic separation. In addition, copper concentrates containing 26-45% copper with 76-88% recoveries were obtained by sulphidization-flotation from magnetic tailings and middling products.

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