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A simple route for synthesis of SnO2 from copper alloy dross

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2014, 24(2), pp.84-87
  • DOI : 10.6111/JKCGCT.2014.24.2.084
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Jung-Il Lee 1 이보슬 1 이지영 1 신지영 1 Tae Wan Kim 1 Jeong-ho Ryu 1

1한국교통대학교

Accredited

ABSTRACT

Separation/recovery of valuable metals such as zinc, nickel or tin from copper alloy dross has recently attractedfrom the viewpoints of environmental protection and resource recycling. In this study, preliminary investigation onseparation of tin (Sn) from copper alloy dross using selective dissolution method was performed. The tin in the copperalloy dross did not dissolve in an aqueous nitric acid solution which could allow the concentration/separation of tin fromthe copper alloy dross. Precipitation of tin as H2SnO3 (meta stannic acid)occurred in the solution and transformed to tindioxide (SnO2) after drying process. The dried sample was heat-treated at low temperature and its crystal structure, surfacemorphology and chemical composition were investigated.

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