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Bodo R Rohrmann

Rodney C Baxter

Roger J Wedlake

Gerhard J Mostert

Derek R Oldnall

A furnace comprises a furnace shell rotatable about a rotational axis. The furnace shell provides a furnace chamber for holding a solid particulate reagent as the furnace shell rotates. At least two electrodes are exposed to the chamber and are mounted in electrically insulated fashion therein. The electrodes are spaced apart so that solid particulate reagent in the furnace chamber can be heated up by direct resistance heating thereof, utilizing the electrodes.

Method and apparatus for reacting solid particulate reagents in an

This invention provides a process for the recovery of titanium values from a complex matrix comprising titanium nitride. The process comprises chlorinating the titanium nitride in the matrix to obtain a reaction product containing titanium chloride, and separating the titanium chloride from the reaction product. The invention also provides for the production of said complex matrix containing titanium nitride by nitriding titanium values in complex titanium-containing starting materials such as complex metallurgical titaniferous slags and ilmenite, perovskite, armalcolite and fassaite.

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Witbank, South Africa

Bodo R Rohrmann