Surface Treatment of Magnesia-Calcia Firebricks with CO2

Abstract:

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For the hydration of magnesia-calcia refractory, this paper uses a new hydration-resistance technology. Namely using chemical methods, through surface and CO2 occurring chemical reaction which generates CaCO3 layer. The surface of magnesia-calcia firebricks are modified so that closed or stability, playing a role in hydration-resistance, and significantly improves the hydration-resistance. By SEM energy spectrum analysis and hydration resistance test, we obtained optimal technological parameters: reaction temperature is 700 °C for 4-5 hours, suitable water vapour temperature is 40°C, and the appropriate CO2 flow is in the 4-4.5L•min-1.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

1151-1156

DOI:

10.4028/www.scientific.net/AMR.189-193.1151

Citation:

S. J. Chen et al., "Surface Treatment of Magnesia-Calcia Firebricks with CO2", Advanced Materials Research, Vols. 189-193, pp. 1151-1156, 2011

Online since:

February 2011

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Price:

$35.00

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