Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Removal of Nickel from the Etching Waste Solution of Ferric Chloride

엣칭용 염화제2철 폐액중의 니켈제거

  • Doh, Yong-Il (Dept. of Industrial Chemistry, Kyungpook National University) ;
  • Jeung, Woo-Won (Dept. of Industrial Chemistry, Kyungpook National University) ;
  • Lee, Man-Ho (Dept. of Industrial Chemistry, Kyungpook National University)
  • 도용일 (경북대학교 공과대학 공업화학과) ;
  • 정우원 (경북대학교 공과대학 공업화학과) ;
  • 이만호 (경북대학교 공과대학 공업화학과)
  • Received : 1995.12.07
  • Accepted : 1996.06.29
  • Published : 1996.08.10
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Abstract

Efficient removal of nickel from the ferric chloride etching solution has been studied. At first, $Fe^{3+}$ was reduced to $Fe^{2+}$ by the electrolytic iron flake or the waste shadow mask iron plate. And then, $Ni^{2+}$ was removed from the solution by electrolytic iron powder. Under the optimum conditions the reduced rates of nickel were 99 % and 98%, respectively at the initial $Ni^{2+}$ concentrations of 1.0% and 0.1%. Sludge formed during reduction of $Fe^{3+}$ in the solution were analyzed by XRD and SEM.

엣칭용 염화제2철 용액중의 효과적인 니켈제거에 관해 연구하였다. 전해철괴 또는 폐새도우마스크 철편을 사용하여 염화제2철을 염화제1철로 환원시킨후 용액중의 $Ni^{2+}$를 전해철 분말로 환원 석출시켰다. 최적의 실험조건하에서 초기 니켈의 농도가 1.0%일 때 니켈제거율은 99%이었고 초기 니켈의 농도가 0.1%일 때 니켈제거율은 98%이었다. 염화제2철의 환원반응 중에 생성된 수산화철의 종류 및 입자크기를 XRD와 SEM으로 분석하였다.

Keywords

Acknowledgement

Supported by : 한국과학재단

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