다량 Cl성분이 함유된 플라이 애쉬로부터 유리화 및 결정화 현상

김재명; 김형순; Jae-Myung Kim; Hyung-Sun Kim

Korean Journal of Materials Research, Vol.12, No.12, 924-929, December, 2002

DOI10.3740/MRSK.2002.12.12.924 Export Citation

다량 Cl성분이 함유된 플라이 애쉬로부터 유리화 및 결정화 현상

Crystallization Phenomina and Vetrification From a Fly Ash With Large Content of Cl

김재명, 김형순^†

순천대학교 재료·금속공학과

Jae-Myung Kim, and Hyung-Sun Kim^†

Dept. of Mterials Science and Metallurgical Engineering, Sunchon National University, Sunchon, 540-740, Korea

E-mail:

To recycle waste materials, this work was focused on development of glass-ceramic from incinerator fly ash with a large content of Cl and its physical property was evaluated. In the process, water washing as a pre-treatment before melting the fly ash was used to remove large amount of Cl component in the ash and to reduce melting temperature. As a result, glass was obtained at below 100 ? C compared to the melting temperature before washing the ash. Also, internal crystallization occurred under single stage heat treatment (at 850?950 ? C for 20-340min) without adding other materials into the ash. It was shown that the glass-ceramic was composed of four crystals, diopside, anorthite, akermanite, and unknown phase. Hardness of 8.3GPa was found in the glass-ceramic, which is a high value compared to reported others. Thus, the present process suggests that a good glass-ceramic produced from an incinerator ash could be applicable for structural materials in terms of economic and environmental points.

Keywords:fly ash;glass-ceramic;crystallization

[References]

Barbieri L, Corradi A, Lancellotti I, J. Eur. Ceram. Soc., 20, 1637 (2002)
Romero M, Rincon JM, Rawlings RD, Boccaccini AR, Mater. Res. Bull., 36(1-2), 383 (2001)
Boccaccini AR, Schawohl J, Kern H, Schunck B, Rincon JM, Romero M, Glass Technol., 41(3), 99 (2000)
Albino V, Cioffi R, Santoro L, Valenti GL, Waste Management & Research, 14, 29 (1996) (1996)
Hernandez-Crespo MS, Rincon JM, Ceramics International, 27, 713 (2001)
Uchida T, Itoh I, Harada K, Waste Management, 16, 475 (1996)
Ferraris M, Salvo M, Smeacetto F, Augier L, Barbieri L, Corradi A, Lancellotti, J. Eur. Ceram. Soc., 21, 459 (2001)
Nishida K, Nagayoshi Y, Ota H, Nagasawa H, Waste Management, 21, 443 (2001)
Stucki S, Jakob A, Waste Management, 17(4), 231 (1997)
Rocabois P, Rontoire JN, Lehmann J, Gaye H, J. Non-Cryst. Solids, 282, 98 (2001)
Romero M, Rawlings RD, Rincon JM, J. Non-Cryst. Solids, 271, 106 (2000)
Park YJ, Heo J, J. Hazardous Materials, 2783, 1 (2001)
Ahn JW, Kim HS, Han KS, Kim H, Proceeding of the 3rd ISEPD, 97 (2002)
Marghussian VK, Niaki MH, J. Eur. Ceram. Soc., 15, 343 (1995)
James PF, in Glass and Glass-Ceramics, ed. by Lewis MH, Chapman and Hall, London, 1989, 59 (1989)
Rogers PS, Williamson J, Glass Technol., 10, 46 (1969)

[1] Barbieri L, Corradi A, Lancellotti I, J. Eur. Ceram. Soc., 20, 1637 (2002)

[2] Romero M, Rincon JM, Rawlings RD, Boccaccini AR, Mater. Res. Bull., 36(1-2), 383 (2001)

[3] Boccaccini AR, Schawohl J, Kern H, Schunck B, Rincon JM, Romero M, Glass Technol., 41(3), 99 (2000)

[4] Albino V, Cioffi R, Santoro L, Valenti GL, Waste Management & Research, 14, 29 (1996) (1996)

[5] Hernandez-Crespo MS, Rincon JM, Ceramics International, 27, 713 (2001)

[6] Uchida T, Itoh I, Harada K, Waste Management, 16, 475 (1996)

[7] Ferraris M, Salvo M, Smeacetto F, Augier L, Barbieri L, Corradi A, Lancellotti, J. Eur. Ceram. Soc., 21, 459 (2001)

[8] Nishida K, Nagayoshi Y, Ota H, Nagasawa H, Waste Management, 21, 443 (2001)

[9] Stucki S, Jakob A, Waste Management, 17(4), 231 (1997)

[10] Rocabois P, Rontoire JN, Lehmann J, Gaye H, J. Non-Cryst. Solids, 282, 98 (2001)

[11] Romero M, Rawlings RD, Rincon JM, J. Non-Cryst. Solids, 271, 106 (2000)

[12] Park YJ, Heo J, J. Hazardous Materials, 2783, 1 (2001)

[13] Ahn JW, Kim HS, Han KS, Kim H, Proceeding of the 3rd ISEPD, 97 (2002)

[14] Marghussian VK, Niaki MH, J. Eur. Ceram. Soc., 15, 343 (1995)

[15] James PF, in Glass and Glass-Ceramics, ed. by Lewis MH, Chapman and Hall, London, 1989, 59 (1989)

[16] Rogers PS, Williamson J, Glass Technol., 10, 46 (1969)