융복합기술(融複合技術)에 의한 폐(廢)콘덴서로부터 탄탈륨 재활용(再活用) 기초연구(基礎硏究)

A Preliminary Study on Tantalum Recycling from Obsolete Condenser by Multidisciplinary Process

  • 발행 : 2007.12.27

초록

폐콘덴서로부터 탄탈륨 음극을 회수하기 위하여 물리적 선별과, 염소가스와 사염화탄소를 이용한 기초 염화반응에 관한 연구를 수행하였다. Stamp mill을 이용한 파쇄, 요동테이블에서의 습식 비중선별 그리고 공기 분급을 통하여 탄탈륨 음극을 98% 회수할 수 있었다. 염소가스를 이용한 TGA분석에서 탄탈륨 음극의 최대 무게 감소는 60%였고, 사염화탄소에 의한 탄탈륨 음극의 염화반응은 탄탈륨 음극을 산화탄탈륨으로 변환한 후가 반응율이 높았다.

For recycling of tantalum from obsolete condenser, physical separations and chlorination of tantalum scraps with $Cl_2$ and $CCl_4$ were investigated. The recovery ratio of tantalum from obsolete condenser was 98% by using a multidisciplinary process of crushing by stamp mill, wet gravity separation by the shaking table, and air classification. In the chlorination reaction of non-oxidized Ta anode with $Cl_2$, the highest weight loss ratio is at least 60%, while in the chlorination reaction of Ta anode with $CCl_4$, the reaction rate for the oxidized Ta anode is faster than that of the non-oxidized Ta anode.

키워드

참고문헌

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