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Recovery of Tantalum Anode from Waste Tantalum Condenser by Air Classification  

Kim Sang-Bae (한국지질자원연구원, 자원활용연구부)
Cho Sung-Baek (한국지질자원연구원, 자원활용연구부)
Cho Keon-Joon (한국지질자원연구원, 자원활용연구부)
Kim Yoon-Jong (배재대학교 신소재공학부)
Lee Jae-Chun (한국지질자원연구원, 자원활용연구부)
Kim Won-Baek (한국지질자원연구원, 자원활용연구부)
Publication Information
Resources Recycling / v.12, no.3, 2003 , pp. 3-12 More about this Journal
Abstract
Physical separation containing grinding, sieving, dry magnetic separation and air classification were carried out in order to recover Ta anode from waste Ta condenser. Roll crusher wat used for the liberation of resin and metals in closed circuit system. The liberation between Ta anode and resin was easily achieved, whereat some of metals did not liberated from the Ta anode when the waste condenser was crushed below 8 mesh. When the crushed sample were divided into 8/10 mesh, 10/18 mesh and -18 mesh, metals was mainly remained in 8/10 mesh in contrast to Ta anode was in +18 mesh. It was shown that resin was more easily crushed rather than metals from the result of that resin content was 71.5% in -18 mesh. The liberation efficiency was different with the input size of the crushed sample and average efficiency was 62.3% due to the locked Ta anode particles. The results of air classification test for the crushed samples showed that optimal air flow are 39㎥/h, 32㎥/h, 20㎥/h. respectively. When the sample were separated with optimal condition, 94.45% Ta anode containing 97.47 wt.% Ta anode, 0.93 wt.% resin. 1.61 wt.% metal was recovered with 49.39 wt.% yield.
Keywords
waste tantalum condenser; liberation; magnetic separation; air classification; recovery;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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