Yin Danfeng, Sun Chaohui, Chen Haijun, Du Guangchao, Jing Han. Thermodynamic Analysis and Experimental Research on Preparation of V-4Cr-4Ti Crude Alloy by Mg and Ca Co-Reduction[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(6): 51-55. doi: 10.7513/j.issn.1004-7638.2016.06.009
Citation:
Yin Danfeng, Sun Chaohui, Chen Haijun, Du Guangchao, Jing Han. Thermodynamic Analysis and Experimental Research on Preparation of V-4Cr-4Ti Crude Alloy by Mg and Ca Co-Reduction[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(6): 51-55. doi: 10.7513/j.issn.1004-7638.2016.06.009
Yin Danfeng, Sun Chaohui, Chen Haijun, Du Guangchao, Jing Han. Thermodynamic Analysis and Experimental Research on Preparation of V-4Cr-4Ti Crude Alloy by Mg and Ca Co-Reduction[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(6): 51-55. doi: 10.7513/j.issn.1004-7638.2016.06.009
Citation:
Yin Danfeng, Sun Chaohui, Chen Haijun, Du Guangchao, Jing Han. Thermodynamic Analysis and Experimental Research on Preparation of V-4Cr-4Ti Crude Alloy by Mg and Ca Co-Reduction[J]. IRON STEEL VANADIUM TITANIUM, 2016, 37(6): 51-55. doi: 10.7513/j.issn.1004-7638.2016.06.009
Pangang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
The reaction process for preparation of V-4Cr-4Ti crude alloy by Mg and Ca co-reduction was thermodynamically analyzed. The feasibility of the reactions as well as the oxidation vulnerability of Ti was confirmed by the st and ard Gibbs free energies of chemical reactions. Experiments were designed by Fact-Sage software, and the adiabatic combustion temperature of the process was calculated to be 2 657.86℃,with about 2 100℃ of estimated slag melting point and 3 499.4 J·g-1 of unit thermal effect. The experi-mental results show that V-4Cr-4Ti crude alloy with 91.6% V, 3.57% Cr and 1.53% Ti can be obtained according to design scheme by Fact-Sage, but further refining is necessary due to the inhomogeneity of Ti and slag inclusion in the alloy.
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