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Chemical Leaching of Silver from Diverse Resources

다양한 자원으로부터 은의 화학적 침출

  • Received : 2016.11.28
  • Accepted : 2017.01.06
  • Published : 2017.02.28

Abstract

The special properties of silver are often indispensable in the manufacture of advanced materials. Therefore, it is of importance to develop a process to recover silver which is necessary for the production of advanced materials from diverse resources. In this manuscript, the developed processes for the leaching of silver from diverse resources are reviewed. For this purpose, the advantages and disadvantages of using some inorganic acids (nitric and sulfuric acid) and their mixture with other oxidizing agents (ozone, oxygen, hydrogen peroxide and ferric ion) were investigated. Moreover, the leaching of silver with thiourea and thiosulfate was compared over those by inorganic acids in terms of environmental effect.

Keywords

Silver;Hydrometallurgy;Leaching;Secondary sources

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Acknowledgement

Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)