PROCESS FOR PRODUCING TITANIUM TRICHLORIDE-ALUMINUM TRICHLORIDE IN CONTROLLED PROPORTIONS

摘要

1348898 Titanium trichloride-aluminium trichlorlde DART INDUSTRIES Inc 19 April 1971 [9 Feb 1970] 25175/71 Heading C1A Molecularly combined TiCl 3 and AlCl 3 in a selected proportion is produced by reacting Al with an excess of titanium tetrachloride to produce a first cocrystallized product of TiCl 3 and AlCl 3 , heating the product to remove excess TiCl 4 to produce a second cocrystallized product containing less AlCl 3 than first cocrystallized product, adding anhydrous AlCl 3 to the second product sufficient to yield a molecularly combined final product having the selected proportion and grinding the mixture of second cocrystallized product and AlCl 3 . In an embodiment the selected proportion of TiCl 3 to AlCl 3 is 3 : 1, Al is reacted with the excess TiCl 4 at 136‹ C. to 200‹ C. under reflux and the final grinding is by ball milling which may be in an inert atmosphere. The amount of added AlCl 3 may be less than 30% of that in the desired molecular combination.