Stabilization of vanadium tetrachloride
AssigneeExxon Chemical Patents Inc.
InventorsSudhin Datta, Trazollah Ouhadi
Life of this patent
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Abstract
Vanadium tetrachloride is stabilized by the addition of minor but stabilizing amounts of an acyl halide, benzoyl chloride being especially preferred. The vanadium tetrachloride may be dissolved in an inert organic solvent; hydrocarbons such as hexane are preferred. The stabilized vanadium tetrachloride may be utilized subsequently in polymerization processes.
Claims14
A method of stabilizing vanadium tetrachloride against decomposition into vanadium trichloride which comprises incorporating therein an amount of an acyl halide effective to preclude said decomposition, wherein said acyl halide is of the formula ##STR2## in which R is a bond or a C.sub.1-6 alkyl, alkylene, aryl or arylene group, n is 0 or 1 and X is halogen, and wherein the amount of said acyl halide ranges from about 0.1 to 10 mol % of vanadium.
A method of stabilizing vanadium tetrachloride against decomposition into vanadium trichloride which comprises incorporation therein an amount of an acyl halide effective to preclude said decomposition wherein the acyl halide is of the formula ##STR3## in which n is 1, R is a bond, C.sub.1-6 alkylene or phenylene and X is chloro.
A stabilized vanadium tetrachloride composition comprising vanadium tetrachloride, an inert organic solvent, and an amount of an acyl halide effective to preclude substantial decomposition of said vanadium tetrachloride, wherein said acyl halide is of the formula ##STR4## in which R is a bond or a C.sub.1-6 alkyl, alkylene, aryl or arylene group, n is 0 or 1 and X is halogen, and wherein the amount of said acyl halide ranges from about 0.1 to 10 mol % per mol of vanadium.
A stabilized vanadium chloride composition comprising vanadium tetrachloride, an inert organic solvent, and an amount of an acyl halide effective to preclude substantial decomposition of said vanadium tetrachloride wherein the acyl halide is of the formula ##STR5## in which n is 1, R is a bond, C.sub.1-6 alkylene or phenylene and X is chloro.
Dependencies are inferred from the claim text.