Abstract：A new process for producing silicon-calcium alloy in one-step by using carbonized coke balls was proposed，which imitated the "carbonized coke balls" technology in the production of calcium carbide. Theoretical analysis showed that carbonized coke balls can reduce the formation of calcium silicate slag and silicon carbide so as to solve the problem of bottom rising caused by the sinking of the slag. At the same time，carbonized coke balls can promote the lime to generate the calcium carbide，thus increased the ratio of calcium carbide in the molten pool，reduced the density of the slag and increased the melting point of the slag，which can be beneficial to the separation of slag and metal and increasing the temperature of the molten pool. Before the technology was applied to the production，the further study of preparation of carbonized coke balls，charge ratio，smelting process and equipment parameters was needed to obtain the best smelting results.
肖赛君，刘威，章俊，王振. 碳化焦球用于一步法生产硅钙合金新工艺[J]. 中国冶金, 2016, 26(11): 73-77.
XIAO Sai-jun，LIU Wei，ZHANG Jun，WANG Zhen. New process for producing silicon-calcium alloy in one-step by using carbonized coke balls. China Metallurgy, 2016, 26(11): 73-77.
2016, Vol. 26 
