publication . Article . 2011

Leachability of nitrided ilmenite in hydrochloric acid

Swanepoel, J. J.; Vuuren, D. S.; Mike Heydenrych;
Open Access
  • Published: 01 Jan 2011
Titanium nitride in upgraded nitrided ilmenite (bulk of iron removed) can selectively be chlorinated to produce titanium tetrachloride. Except for iron, most other components present during this low temperature (ca. 200°C) chlorination reaction will not react with chlorine. It is therefore necessary to remove as much iron as possible from the nitrided ilmenite. Hydrochloric acid leaching is a possible process route to remove metallic iron from nitrided ilmenite without excessive dissolution of species like titanium nitride and calcium oxide. Calcium oxide dissolution results in unrecoverable acid consumption. The leachability of nitrided ilmenite in hydrochloric...
free text keywords: Titanium nitride, upgraded nitrided ilmenite, hydrochloric acid leaching, metallic iron dissolution

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