Experimental Study on Carbothermic Reduction of Magnesia with Different Carbon Materials

Abstract:

The structure and composition of carbon materials affect obviously the result of carbothermic reduction of magnesia. Coke, charcoal and graphite were used in reduction experiments under the same conditions. The reactivity ratio of magnesia and XRD pattern of residues were analyzed and compared. The reactivity ratio of magnesia by coke was similar to the one by charcoal. The amorphous carbon in coke graphitized partly in reduction experiments of 1673K. The results show that the effective composition in coke is the amorphous carbon. It also suggests that the temperature of reaction should be control less than 1700K to avoid the amorphous carbon’s graphitization.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 2552-2555
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.2552
• Online since: January 2013
• Authors: Yun Jiang, Hong Wen Ma, Yu Qin Liu
• Keywords: Amorphous Carbon, Carbothermic Reduction, Coke, Graphitization, Magnesia

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