A method and apparatus for the production of metal compounds

B - Operations – Transporting – 22 – F

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B22F 9/18 (2006.01) B22F 9/20 (2006.01) C01F 7/00 (2006.01) C01G 23/00 (2006.01) C22C 14/00 (2006.01) C22C 21/00 (2006.01) C22C 45/08 (2006.01) C22C 45/10 (2006.01)

Patent

CA 2526483

The present invention relates to a method and apparatus for the production of titanium alloys and titanium-aluminium inter-metallic compounds and alloys. Starting from a precursor material including titanium subchloride (titanium trichloride or titanium dichloride), the precursor material is reduced by aluminium to produce titanium-aluminium intermetallic complexes or alloys and aluminium chloride which is driven away from the reaction zone so as to favour the forward reaction and the production of the titanium-aluminium compounds. Starting from a precursor material of titanium subchloride avoids the problems associated with starting from titanium metal (which is expensive to produce) or titanium tetrachloride (a reaction very difficult to control), and results in the production of powdered forms of titanium-aluminium compounds with controllable composition.

L'invention concerne un procédé et un dispositif permettant la production d'alliages de titane et de composés et d'alliages intermétalliques titane-aluminium. Ce procédé consiste à partir d'un matériau précurseur contenant un sous-chlorure de titane (trichlorure ou dichlorure de titane), et à réduire le matériau précurseur avec de l'aluminium afin de produire des complexes ou des alliages intermétalliques titane-aluminium, et du chlorure d'aluminium lequel est évacué de la zone réactionnelle, afin de favoriser la réaction directe et la production de composés titane-aluminium. En prenant comme matériau de départ un précurseur à base de sous-chlorure de titane, on évite les problèmes associés à l'utilisation d'un titane métallique (dont la production est coûteuse) ou de tétrachlorure de titane (une réaction difficile à maîtriser), et on obtient des composés titane-aluminium sous forme de poudres dont la composition peut être définie sélectivement.

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