Browse > Article

Preparation and Characterization of Copper Oxychloride from Acidic Copper Chloride Etchant  

김영희 (요업(세라믹)기술원 환경재료팀)
김수룡 (요업(세라믹)기술원 환경재료팀)
정상진 (요업(세라믹)기술원 환경재료팀)
이윤주 (요업(세라믹)기술원 환경재료팀)
어영선 (한국과학기술연구원 재료연구부)
Publication Information
Resources Recycling / v.12, no.2, 2003 , pp. 3-10 More about this Journal
Abstract
Copper oxychloride used as an agricultural fungicide has been recovered from copper-containing waste etchant by the neutralization with alkali hydroxides. Large amount of copper-containing waste etchant is generated from Printed Circuit Board industry. In an environmental and economic point of view, retrieve of the valuable natural resource from the waste is important. Recycling process of copper oxychloride from the waste etchant is discovered through the our study. In the range of reaction temp. 2$0^{\circ}C$-4$0^{\circ}C$, pH 5-7, pure copper oxychloride was able to prepare and the yield of copper oxychloride was higher than 95%. Physical properties of the sample have been characterized using SEM, XRD, TGA, ICP and Atomic absorption spectroscopy.
Keywords
Copper oxychloride; Copper-containing waste etchant; PCB industry; Partial Neutralization; Sodium hydroxide;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. R. Allardyce, A. J. Davies, D. J. Wayness and A. Singh: 'Process for Multiplayer Printed Circuit Board Manufacture', US Patent 5,106,454 (1992)
2 K. S. Doh, N. Y. Kim, and D. K. Kim: 'A Study on the Recycling of Cupric Oxide by Using Copper-Containing Wastewater', J. Korea Solid Wastes Engineering Society, 14(7), 667-672 (1997)
3 Th. Goldschmidt: 'Process for the Preparation of Basic Copper Carbonate', U.S. Pat. 4,659,555 (1987)
4 Y. K. Kim, D. H. Riu, S. R. Kim and Y. S. Uh: 'A Study on the Recovery of Shape-controlled Copper Oxide from the Waste etchant of PCB Industry', J. of Korean Inst. of Resources Recycling, 10(6), 15-21 (2001)
5 S. Kratohvil and E. Matijevic: 'Preparation of Copper Compounds of different Compositions and Particle Moipho logies', J. Mat. Res. 6(4), 766 (1991)   DOI
6 H. Martin: 'Inorganics, in Fungicide, An Advanced Treatise', D. C. Torgeson, ed. Academi Press, 1969
7 J. D. Wilson: 'Copper as an Agricultural Fungicide, in Copper The Science and Technology of the Metal, Its alloys and Compound', A, Butt ed. Reinhold Pub. Co., New York (1954)
8 B. Greenberg: 'Method and Apparatus for Recovering Copper and Regenerating Ammonical Etchant from Spent Ammonical Etchant', US Patent 5,188,703 (1993)
9 H. W. Richardson: 'Hand Book of Copper Compounds and Applications', Marcel Dekker Inc. New York, U.S.A (1997)
10 A. Beitel: 'A Method of producing Copper Oxychloride', U.K. Pat. 1,374,078 (1971)