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A method of preparing iron carbide by reducing magnetite pellets with H_2-CO mixtures is presented. The results show that over 90 percent conversion ratio of iron carbide can be reached at 973K and 1073K under the suitable atmosphere. The reaction process to prepare iron carbide from magnetite can be divided into two stages: reduction of magnetite pellets and carburization of reduction product. The carbon deposition has a great influence on formation of iron carbide. In order to get a high conversion ratio of iron carbide, the relative weight loss value (m) should be controlled between 0.5 to 0.8.
The results show that over 90 percent conversion ratio of iron carbide can be reached at 973K and 1073K under the suitable atmosphere. The reaction process to prepare iron carbide from Reduction of magnetite pellets and carburization of reduction product. The carbon deposition has a great influence on formation of iron carbide. In order to get a high conversion ratio of iron carbide, the relative weight loss value (m ) should be controlled between 0.5 to 0.8.