Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Electrowinning of Tin from Acidic Sulfate Effluents Using a Cyclone Electrolytic Cell

황산용액에서 사이클론 전해조를 이용한 주석의 전해채취

  • Kang, Myeong-Sik (Department of Advanced Materials Sci. & Eng., Daejin University) ;
  • Cho, Yeon-Chul (Department of Advanced Materials Sci. & Eng., Daejin University) ;
  • Ahn, Jae-Woo (Department of Advanced Materials Sci. & Eng., Daejin University) ;
  • Shin, Gi-Wung (Research & Development Center, Incheon Chemical Ltd.) ;
  • Kang, Yong-Ho (Research & Development Center, Incheon Chemical Ltd.)
  • Received : 2016.03.31
  • Accepted : 2016.04.20
  • Published : 2016.04.30
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Abstract

A electrodeposion behavior of tin was tested to recovery of tin metal from sulfate solution using a newly designed cyclone type electrolyzer. Parameters, such as flow rate, current density, tin and sulfuric acid concentration in the electrolyte were investigated. From the experimental results, a powered tin metal below $100{\mu}m$ can be obtained. As the increase of flow rate, current density and sulfuric acid concentration in the electrolyte, electrodeposition ratio of tin and current efficiency were increased. The electrodeposition ratio of tin was increased with the decrease of tin concentration in the electrolyte, but the current efficiency was decreased.

개조된 사이클론식 전해조를 사용하여 황산염 용액으로부터 금속 주석으로 회수하기 위하여 주석의 전해채취 거동을 조사하였다. 실험 변수로는 유속의 영향, 전류밀도, 전해질 용액의 황산 농도 및 주석 농도 등에 대하여 실시하였다. 실험 결과 $100{\mu}m$이하 크기의 분말상 금속 주석을 얻을 수 있었다. 유속 및 전류밀도 그리고 전해액중 황산농도가 증가할수록 주석의 석출율 및 전류효율값이 증가하였다. 그러나 주석의 농도가 감소함에 따라 주석의 석출율은 증가하나, 전류효율값은 감소하였다.

Keywords

References

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