Low-temperature fluid-bed chlorination of titaniferous ore

Details Low-temperature fluid-bed chlorination of titaniferous ore Low-temperature fluid-bed chlorination of titaniferous ore

C - Chemistry, Metallurgy

22

B

53/156

C22B 34/12 (2006.01)

Patent

CA 1162745

ABSTRACT A process for chlorinating a titaniferous material which comprises fluidizing discrete particles of titaniferous material and discrete particles of porous carbon reductant and contacting said discrete particles with a chlorine-providing material at a temperature of between about 600°C. and about 800°C. until the titanium content of said titaniferous material is substantially chlorinated, said porous carbon reductant being characterized in that it has micropores therein having a pore diameter of less than about 20 .ANG.. This new low-temperature process effectively and efficiently substantially chlorinates titanium values in most titanium-bearing ores without the use of heretofore required fine grinding, preagglomeration of titaniferous material and carbon reductant, or resort to highly reactive chlorine sources such as NOCl.

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