真空法从钛矿中制备钛的热力学可行性研究

doi:10.13385/j.cnki.vacuum.2021.06.12

VACUUM ›› 2021, Vol. 58 ›› Issue (6): 63-66.doi: 10.13385/j.cnki.vacuum.2021.06.12

• Vacuum Metallurgy and Thermal Engineering • Previous Articles Next Articles

Thermodynamic Feasibility Study on Preparation of Titanium from Titanium Ore by Vacuum Method

LIU Yu-cheng¹, DU Yuan-chao¹, LI Qiu-xia²

1. College of Metallurgy and Materials, Wenshan University, Wenshan 663099, China;
2. College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China

Received:2020-12-15 Online:2021-11-25 Published:2021-11-30

Abstract

Abstract: In this paper, the starting temperature of various reactions in vacuum carbothermal reduction of titanium oxide is discussed from the point of thermodynamics. The results of thermodynamic calculation show that the order of carbothermal reduction of titanium ore and ilmenite in vacuum is TiO₂→Ti₃O₅→Ti₂O₃→TiO→Fi and FeTiO₃→TiO₂→Ti₃O₅→Ti₂O₃→TiO→Ti. The different content ratio of TiO₂ and C results in different substances when TiO₂ and C occurs the carbothermal reduction reaction. It produces Ti₂O₃ when the molar ratio of TiO₂ to C is 2∶1. It produces Ti₃O₅ when the molar ratio of TiO₂ to C is 3∶1. It produces TiO when the molar ratio of TiO₂ to C is 1∶1. It produces Ti when the molar ratio of TiO₂ to C is 1∶2. It produces TiC when the molar ratio of TiO₂ to C is 1∶3.

Key words: carbothermal reduction, titanium ore, ilmenite, thermodynamics

CLC Number:

TF13

LIU Yu-cheng, DU Yuan-chao, LI Qiu-xia. Thermodynamic Feasibility Study on Preparation of Titanium from Titanium Ore by Vacuum Method[J].VACUUM, 2021, 58(6): 63-66.

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Thermodynamic Feasibility Study on Preparation of Titanium from Titanium Ore by Vacuum Method

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