Browse > Article
http://dx.doi.org/10.7844/kirr.2016.25.1.24

Separation of Tantalum from Electronic Components on Laptop Printed Circuit Board Assembly  

Kwon, Seokje (Department of earth resources and environmental engineering, Hanyang University)
Park, Seungsoo (Department of earth resources and environmental engineering, Hanyang University)
Kim, Seongmin (Department of earth resources and environmental engineering, Hanyang University)
Joe, Aram (Department of earth resources and environmental engineering, Hanyang University)
Song, Youjin (Global Resources & Materials Co., Ltd.)
Park, Poongwon (Global Resources & Materials Co., Ltd.)
Park, Jaikoo (Department of earth resources and environmental engineering, Hanyang University)
Publication Information
Resources Recycling / v.25, no.1, 2016 , pp. 24-30 More about this Journal
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;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Zeng, X., et al., 2012: Current status and future perspective of waste printed circuit boards recycling, Procedia Environmental Sciences, 16(590-597.   DOI
2 Zhou, Y., K. Qiu, 2010: A new technology for recycling materials from waste printed circuit boards, Journal of Hazardous Materials, 175(1), pp. 823-828.   DOI
3 Jeong, J.-K., J.-C. Lee, J.-c. Choi, 2015: Characterization of Metal Composition in Spent Printed Circuit Boards of Mobile Phones, Journal of Korean Institute of Resources Recycling, 24(3), pp. 5.
4 Duan, H., et al., 2015: Systematic characterization of generation and management of e-waste in China, Environmental Science and Pollution Research, 1-15.
5 Cui, J., L. Zhang, 2008: Metallurgical recovery of metals from electronic waste: A review, Journal of hazardous materials, 158(2), pp. 228-256.   DOI
6 Kabangu, M., P. Crouse, 2012: Separation of niobium and tantalum from Mozambican tantalite by ammonium bifluoride digestion and octanol solvent extraction, Hydrometallurgy, 129(151-155.
7 Lee, J.H., I.J. Kim, Y.D. Kim, 2005: The Apdong Nb-Ta ore deposit, North Korea, Springer,
8 Spitczok von Brisinski, L., D. Goldmann, F. Endres, 2014: Recovery of Metals from Tantalum Capacitors with Ionic Liquids, Chemie Ingenieur Technik, 86(1?2), pp. 196-199.   DOI
9 Choi, G.-S., J.-W. Lim, 2008: Production and Applications of Niobium and Tantalum the Korea Institute of Metals and Materials, 21(5), pp. 8.
10 Park, S., et al., 2015: Apparatus for electronic component disassembly from printed circuit board assembly in ewastes, International Journal of Mineral Processing, 144(11-15.   DOI
11 Wills, B.A., 2011: Wills' mineral processing technology: an introduction to the practical aspects of ore treatment and mineral recovery, Butterworth-Heinemann,
12 Coulter, T., G. Subasinghe, 2005: A mechanistic approach to modelling Knelson concentrators, Minerals Engineering, 18(1), pp. 9-17.   DOI
13 Go, B.-H., et al., 2015: Separation of Heavy Metals From Contaminated Sediments Using Knelson Concentrator, The Korean Society of Mineral and Energy Resources Engineers, 52(6), pp. 5.
14 Aravamudhan, S., et al., 1984: Separation based on shape Part II: Newton's separation efficiency, Powder technology, 39(1), pp. 93-98.   DOI