Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Regeneration Methods for Iron Powers in the Treatment of the Waste FeCl3 Etching Solution

엣칭용 염화철폐액의 처리에서 미반응철의 재생방법

  • Park, Chan-Woo (Department of Industrial Chemistry, Kyungpook National University) ;
  • Jeung, Woo-Won (Department of Industrial Chemistry, Kyungpook National University) ;
  • Lee, Man-Ho (Department of Industrial Chemistry, Kyungpook National University)
  • 박찬우 (경북대학교 공과대학 공업화학과) ;
  • 정우원 (경북대학교 공과대학 공업화학과) ;
  • 이만호 (경북대학교 공과대학 공업화학과)
  • Received : 1997.02.28
  • Accepted : 1997.07.23
  • Published : 1997.08.10
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Abstract

The regeneration of the iron powders in the treatment of $FeCl_3$ etching solution containing nickel by ball-mill and ultrasonic treatments has been studied. When the unreacted iron powders were treated twice, the removal efficiency of nickel was 94.0% for the ball-mill treatment and 82.1% for the ultrasonic treatment. But the removal efficiency of nickel was 40.0% for the untreated iron powders. As the treatment time was increased, the particle size of iron powders was decreased for ball-mill treatment and almost not changed for ultrasonic treatment.

철 환원법에 의한 엣칭용 염화철 폐액의 처리에서 니켈이 부착된 미반응 철분을 재생하기 위해서 볼밀 및 초음파 처리를 사용하였다. 철분을 2회 재생하였을 때 니켈 제거 효율은 볼밀을 2시간 처리한 경우와 초음파를 4시간 처리한 경우 각각 94.0%와 82.1%이었다. 재생 처리하지 않고 철분을 3회 사용하였을 때 니켈 제거 효율은 40.0%이었다. 처리시간이 증가함에 따라 볼밀처리에서는 철분의 크기가 감소하였으나, 초음파 처리에서는 철분의 크기 변화가 거의 없었다.

Keywords

Acknowledgement

Supported by : 한국과학재단

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