Chlorination of Reduced Ilmenite Concentrates and Synthetic Rutile

摘要：

Chlorination of carbothermally reduced ilmenites of different grades (primary,secondary and HYTI 70) and synthetic rutile was investigated at 235℃. The main phases of primary and secondary ilmenites were Fe2Ti3O9 and FeTiO3;HYTI 70 contained TiO2) synthetic rutile consisted of titania with titanium suboxides and a small amount of iron. Iron oxides were reduced to metallic iron. Titanium oxides were reduced in argon to titanium oxycarbide or in nitrogen to oxycarbonitride; reduced samples contained a small amount of titanium suboxides. In chlorination of reduced ilmenite concentrates and synthetic rutile, titanium oxycarbide or oxycarbonitride, metallic iron, and Ti2O3 were chlorinated. The degree of chlorination of both iron and titanium oxycarbide/oxycarbonitride was 95-98 ％; chlorination of iron was faster than that of titanium oxycarbide/oxy-carbonitride. The removal of iron by leaching increased the chlorination rate of titanium oxycarbide/oxycarbonitride; it was close to completion at 235℃ in 30 min.

关键词： Ilmenite oxycarbide oxycarbonitride titanium tetrachloride carbothermal reduction chlorination

作者: Andrew Adipuri Yan Li Guangqing Zhang Oleg Ostrovski

作者单位: School of Materials Science and Engineering,the University of New South Wales,UNSW Sydney,NSW 2052,Australia

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 111-115

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）