산화처리된 PCB 스크랩을 첨가한 Al 2 O 3 -SiO 2 -CaO 3성분계 슬래그의 점도

권의혁; 한신석; 지재홍; 한정환; 유병돈; 김병수; 이재천; Eui Hyuk Kwon; Sin Suk Han; Jae Hong Ji; Jeong Whan Han; Byung Don You; Byung Soo Kim; Jae Chun Lee

Korean Journal of Materials Research, Vol.13, No.4, 239-245, April, 2003

DOI10.3740/MRSK.2003.13.4.239 Export Citation

산화처리된 PCB 스크랩을 첨가한 Al 2 O 3 -SiO 2 -CaO 3성분계 슬래그의 점도

Viscosity Change of Al 2 O 3 -SiO 2 -CaO Slag System with Used Electronic Scrap

권의혁, 한신석, 지재홍, 한정환^†, 유병돈, 김병수¹, 이재천¹

인하대학교 재료공학부
¹한국지질자원연구원

Eui Hyuk Kwon, Sin Suk Han, Jae Hong Ji, Jeong Whan Han^†, Byung Don You, Byung Soo Kim¹, and Jae Chun Lee¹

School of Materials Science and Engineering, Inha University, Korea
¹Minerals and Materials Processing Division, KIGAM, Korea

E-mail:

In order to explore the possibility to extract precious metals from PCB(Printed Circuit Board) scrap by gravity separation, a high temperature melting process was adopted, from the recycling view point, to investigate the influence of viscosity on A1 2 O 3 -CaO ?SiO 2 slag system composed of PCB scrap. For optimizing the pre-treatment process of PCB scrap, an experimental condition for the complete calcination and oxidation of organic materials in PCB scrap was established and a quantitative analysis of oxidized PCB scrap was also carrie out. It was found that 6 hours were enough for the complete oxidation of PCB scrap at 1273 K in an atmosphere condition. A slag, l5wt% A1 2 O 3 -45wt%CaO-40wt%SiO 2 , was chosen as a basic slag composition which is determined based on the quantitative analysis of PCB scrap. Viscosities were measured in slag systems both made from pure fluxes and from PCB scrap with additional fluxes. Slag viscosities composed of pure fluxes were measured to be 5.29 poise and 30.52 poise at temperatures of 1773 and 1573 K, whereas that of PCB scrap with additional fluxes were 3.37 poise and 69.89 poise, respectively.

Keywords:slag;viscosity;recycling;precious metals;PCB(printed circuit board) scrap

[References]

Bernades A, Bohlinger I, Rodriguez D, Milbrandt H, Wuth W, Recycling of Printed Circuit Boards by Melting with Oxidizing/Reducing Top Blowing Process, TMS Annual Meeting, Orlando, 363 (1997) (1997)
Jackson E, Hydrometallurgical Extraction and Reclamatuon, Ellis Horwood, 204 (1986) (1986)
Ettel VA, Tilak BV, Comprehensive Treatise of Electrochemistry, vol. 2, Plenium Press, 328 (1981) (1981)
Mantell CL , Electrochemical Engineering(4th ed), McGraw-Hill Inc., 198 (1960) (1960)
Machin JS, Yee TB, Hanna DC, J. Amer. Ceram. Soc., 35, 322 (1952)
Alibert M, Gaye H, Geiseler J, et al., Schlackenatlas Slag Atlas,Schlackenatlas Slag Aatlas, Verein Deutscher Eisenhuttenleute, Germany, 57 (1981) (1981)
Langanke B, Schmalzried H, Bunsenges B, Phys. Chem., 83, 59 (1979)
Petuskey W, Schmalzried H, Bunsenges B, Phys. Chem., 84, 218 (1980)
Dhara S, Precious Metals, Ed. Vermeylen G, Verbek R, Processings of 11th International precious Metals institute Conference, Brussels, Belgium, (1987) (1987)
Riboud PV, Roux Y, Lucas D, Gaye H, Fachber. Huttenprax. Metallweiterverarb., 19, 859 (1981)
Alibert M, Gaye H, Geiseler J, et al., Slag Atlas 2nd Edition, Verein Deutscher Eisenhuttenleute, Germany, 353 (1995) (1995)
Hoffmann JE, Recovering Precious Metals from Electronic Scrap, JOM, 44, 43 (1992) (1992)
Park JH, Min DJ, Song HS, Metall. Mater. Trans. B, 33B, 724 (2002)

[1] Bernades A, Bohlinger I, Rodriguez D, Milbrandt H, Wuth W, Recycling of Printed Circuit Boards by Melting with Oxidizing/Reducing Top Blowing Process, TMS Annual Meeting, Orlando, 363 (1997) (1997)

[2] Jackson E, Hydrometallurgical Extraction and Reclamatuon, Ellis Horwood, 204 (1986) (1986)

[3] Ettel VA, Tilak BV, Comprehensive Treatise of Electrochemistry, vol. 2, Plenium Press, 328 (1981) (1981)

[4] Mantell CL , Electrochemical Engineering(4th ed), McGraw-Hill Inc., 198 (1960) (1960)

[5] Machin JS, Yee TB, Hanna DC, J. Amer. Ceram. Soc., 35, 322 (1952)

[6] Alibert M, Gaye H, Geiseler J, et al., Schlackenatlas Slag Atlas,Schlackenatlas Slag Aatlas, Verein Deutscher Eisenhuttenleute, Germany, 57 (1981) (1981)

[7] Langanke B, Schmalzried H, Bunsenges B, Phys. Chem., 83, 59 (1979)

[8] Petuskey W, Schmalzried H, Bunsenges B, Phys. Chem., 84, 218 (1980)

[9] Dhara S, Precious Metals, Ed. Vermeylen G, Verbek R, Processings of 11th International precious Metals institute Conference, Brussels, Belgium, (1987) (1987)

[10] Riboud PV, Roux Y, Lucas D, Gaye H, Fachber. Huttenprax. Metallweiterverarb., 19, 859 (1981)

[11] Alibert M, Gaye H, Geiseler J, et al., Slag Atlas 2nd Edition, Verein Deutscher Eisenhuttenleute, Germany, 353 (1995) (1995)

[12] Hoffmann JE, Recovering Precious Metals from Electronic Scrap, JOM, 44, 43 (1992) (1992)

[13] Park JH, Min DJ, Song HS, Metall. Mater. Trans. B, 33B, 724 (2002)