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Separation of Tantalum from Electronic Components on Laptop Printed Circuit Board Assembly
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 Title & Authors
Separation of Tantalum from Electronic Components on Laptop Printed Circuit Board Assembly
Kwon, Seokje; Park, Seungsoo; Kim, Seongmin; Joe, Aram; Song, Youjin; Park, Poongwon; Park, Jaikoo;
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 Abstract
The study to obtain tantalum concentration from electronic components (ECs) on Printed circuit board assembly (PCBA) of laptop was conducted. Electronic components on laptop PCBA were detached from boards by using self-developed experimental apparatus. The detached electronic components were sieved and 93.2 wt.% of tantalum capacitors were concentrated from the size interval from 2.80 mm to 6.35 mm. The tantalum capacitors were pulverized by hammer mill and electrodes (anode and cathode) were removed from the grinding products by using magnetic separators under the magnetic force of 300 Gauss. Finally, tantalum concentrate was concentrated from the magnetic separator products by using Knelson concentrator, and the maximum efficiency of 76.9% was achieved under the operating condition of bowl rotating speed of 200 rpm, and fluidizing water flowrate of 7 L/min. The grade and recovery of Ta concentrate under the condition were 81.1% and 78.8%, respectively.
 Keywords
Tantalum capacitor;Printed circuit board;Electronic components;Electronic components disassembly;Gravity concentration;
 Language
Korean
 Cited by
1.
Potentials and Barriers for Tantalum Recovery from Waste Electric and Electronic Equipment, Journal of Industrial Ecology, 2017, 21, 3, 700  crossref(new windwow)
2.
Particle Migration Regularity in Compound Force Field of Enhanced Gravity Concentrator, International Journal of Coal Preparation and Utilization, 2017, 1  crossref(new windwow)
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