Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Novel Technology for Recycling Waste Dry-battery

  • Chen, Weiliang (Department of Metallurgical Science & Engineering, Central South University) ;
  • Chai, Liyuan (Department of Metallurgical Science & Engineering, Central South University) ;
  • Min, Xiaobo (Department of Metallurgical Science & Engineering, Central South University) ;
  • Zhang, Chuanfu (Department of Metallurgical Science & Engineering, Central South University)
  • Published : 2001.10.01
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Abstract

A novel technology for recycling valuable metals contained in waste dry-battery by vacuum metallurgy was devised by theoretical analysis. On the condition of the total chamber pressure of 1.013$\upsilon$10$^1$Pa, Hg, Cd and Zn are distilled in the temperature range of 773~973K, Pb is volatilized in the range of 1173~1273K while Mn, Cu, Fe and C are remained in residual. MnO$_2$and ZnO are reduced by carbon in waste dry-battery in 773~1273K. Pure metals including Zn, Cd, Hg and Pb can be recovered respectively from their mixed vapor by fractional condensation. Metal Cu and MnO$_2$can be obtained from the residual by hydrometallguical method. The technology can eliminate the pollution of Cd, Hg and Pb to environment.

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