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Chlorination of reduced ilmenite concentrates and synthetic rutile

Conference Paper


Abstract


  • Chlorination of carbothermally reduced ilmenites of different grades (primary, secondary and HYTI 70) and synthetic rutile was investigated at 235°C. The main phases of primary and secondary ilmenites were Fe 2Ti3O2 and FeTiO3 ; HYTI 70 contained TiO3; 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/oxycarbonitride. The removal of iron by leaching increased the chlorination rate of titanium oxycarbide/oxycarbonitride; it was close to completion at 235°C in 30 min.

Publication Date


  • 2012

Citation


  • Adipuri, A., Li, Y., Zhang, G., & Ostrovski, O. (2012). Chlorination of reduced ilmenite concentrates and synthetic rutile. In Ti 2011 - Proceedings of the 12th World Conference on Titanium Vol. 1 (pp. 111-115).

Scopus Eid


  • 2-s2.0-84883064848

Start Page


  • 111

End Page


  • 115

Volume


  • 1

Abstract


  • Chlorination of carbothermally reduced ilmenites of different grades (primary, secondary and HYTI 70) and synthetic rutile was investigated at 235°C. The main phases of primary and secondary ilmenites were Fe 2Ti3O2 and FeTiO3 ; HYTI 70 contained TiO3; 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/oxycarbonitride. The removal of iron by leaching increased the chlorination rate of titanium oxycarbide/oxycarbonitride; it was close to completion at 235°C in 30 min.

Publication Date


  • 2012

Citation


  • Adipuri, A., Li, Y., Zhang, G., & Ostrovski, O. (2012). Chlorination of reduced ilmenite concentrates and synthetic rutile. In Ti 2011 - Proceedings of the 12th World Conference on Titanium Vol. 1 (pp. 111-115).

Scopus Eid


  • 2-s2.0-84883064848

Start Page


  • 111

End Page


  • 115

Volume


  • 1