Thermodynamics Analyses on the Comprehensive Utilization of Vanadium-Bearing Titanomagnetite
In this paper, thermodynamics calculations on the interactive reactions among related species in the system were made. It indicated that when chlorine agent (such as Cl2, CaCl2, etc.) are introduced into the system and chlorine potential—logpCl2—and oxygen potential—logpO2—are controlled at a certain region, vanadium in the ore can be extracted by gas of vanadium trichloride oxide at 1100 K. Iron in the ore can be carbo–reduced to metallic iron over the temperature range of 1000-1300 K. The obtained is solid products (DRI, slag, etc.). Heating the solid products to certain temperature (more than melting point of iron), the obtained metallic iron is melted and recovered, whereas titanium-rich slag remains solid for separation. The left titanium-rich slag can be used for the produciton of titanium oxide or titanium smelting process as the alternative of raw material. Therefore, a proposal of new process on comprehensively utilizing the vanadium-bearing titanomagnetite is provided based on the thermodynamic analyses.
vanadium-bearing titanomagnetite comprehensive utilization of resource thermodynamics calculation
ZHENG Hai-yan XUE Xun WEI Guo SHEN Feng-man
Institute for Ferrous Metallurgy, Northeastern University, Shenyang 110004, China Panzhihua Iron & Steel Research Institute, Pangang Group, Panzhihua 617000, China
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
1208-1210
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）