Texas Alkyls, Inc.

Stauffer Chemical Company

Loyd W Fannin

Dennis B Malpass

Clark C Crapo

Michael J Breen

Ramiro Sanchez

Kelly B Triplett

Dennis L Deavenport

John R Rohrer

Adducts of a trialkylaluminum or a dialkylaluminum hydride and diisoalkenyl benzene compounds have been discovered. Catalyst components for the polymerization of olefins have also been developed which comprise, as the cocatalyst, the reaction product of a trialkylaluminum or a dialkylaluminum hydride (e.g., diisobutylaluminum hydride) and an alkenyl-substituted benzene (e.g., diisopropenyl benzene).

Olefin polymerization or copolymerization catalyst components

Aluminum-containing compositions for use particularly as olefin polymerization or copolymerization cocatalysts are produced by reaction of trialkylaluminums or dialkylaluminum hydrides with 1,3- or 1,4-pentadiene at a mole ratio of aluminum compound to pentadiene of approximately 1:1, with removal during the reaction of evolved olefin.

Olefin polymerization of copolymerization catalyst components

Aluminum alkyl vapor is removed from a gas stream by scrubbing with a hydrocarbon scrubbing liquid containing a long chain carboxylic acid dissolved therein.

Removal of aluminum alkyl vapor from gas stream

Dialkylaluminum chloride produced as a co-product in the reaction of a trialkylaluminum with zinc chloride or metallic zinc and an alkyl halide, to produce a dialkylzinc, is purified from contaminants containing zinc by contacting it with a dialkylaluminum hydride, followed by distillation.

Method for recovery of alkylaluminum halides

The viscosity of hydrocarbon solutions of dialkylmagnesium compounds is reduced by including as the viscosity reducing agent a nitrogen-containing compound which is a piperidine substituted with a hydrocarbyl group (preferably a C.sub.1 -C.sub.6 alkyl, C.sub.6 -C.sub.9 aryl or C.sub.5 -C.sub.6 cycloalkyl group) at the 2-position and optionally further substituted, triethylamine, cyclohexylamine, dicyclohexylamine, or N-N-dimethylformamide, or a mixture of two or more of these nitrogen-containing compounds. The viscosity reducing agent may be used as such or in the form of a substance produced by reacting such a nitrogen-containing compound with magnesium or with a dialkylmagnesium compound. The viscosity reducing agent may be used alone, or in a mixture with an organoaluminum viscosity reducing agent.

Organomagnesium solutions of low viscosity

Dialkylaluminum chloride produced as a co-product in the reaction of a trialkylaluminum with zinc chloride or metallic zinc and an alkyl halide, to produce a dialkylzinc, is purified from contaminants containing zinc by contacting it with an alkylaluminum sesquihalide, followed by distillation.

Post-precipitation of solids from a hydrocarbon solution of an organomagnesium compound is prevented by addition of an appropriate amount of an alkyllithium compound.

Treatment of hydrocarbon solutions of dialkylmagnesium compounds to

A low viscosity liquid solution is described, comprising

A composition of matter is disclosed comprising a dialkylmagnesium compound of the formula

Hydrocarbon-soluble magnesium-aluminum compositions

Novel organoaluminum compounds having the formula XYA1 ##STR1## in which X is a halogen, Y is an alkyl group having from 1 to 10 carbon atoms, a phenyl group or a halogen, R is an alkyl group having from 2 to 9 carbon atoms, and n is an integer from 1 to 20. These compounds are less viscous and more soluble in hydrocarbon solvents than are corresponding ethylene-based or butadiene-based compounds. The novel compounds are prepared by the reaction of alkylaluminum dihalides or aluminum trihalides with a terminal olefin having from 3 to 10 carbon atoms in the presence of aluminum metal.

Aluminum oligomers as polymerization catalysts

A composition of matter comprising di-n-butylmagnesium and dimethylmagnesium, to the exclusion of dialkylmagnesium compounds containing alkyl groups other than n-butyl or methyl, with an n-butyl:methyl alkyl group ratio of about 0.2:1 to about 5:1 which is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents is disclosed. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of methyl and n-butyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium chloride and any unreacted magnesium metal from the resulting solution.

Hydrocarbon soluble magnesium compositions of high magnesium content

A composition of matter is disclosed comprising dimethylmagnesium, di-n-propylmagnesium and optionally diethylmagnesium. The composition is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents without the aid of solubilizing agents. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of methyl, ethyl, and n-propyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium halide and any unreacted magnesium metal from the resulting solution.

Novel organoaluminum compounds having the formula ##STR1## in which X is a halogen, Y is an alkyl group having from 1 to 10 carbon atoms, a phenyl group or a halogen, R is an alkyl group having from 2 to 9 carbon atoms, and n is an integer from 1 to 20. These compounds are less viscous and more soluble in hydrocarbon solvents than are corresponding ethylene-based or butadiene-based compounds. The novel compounds are prepared by the reaction of alkylaluminum dihalides or aluminum trihalides with a terminal olefin having from 3 to 10 carbon atoms in the presence of aluminum metal.

Novel substituted methylene bridged aluminum oligomers

A composition of matter comprising di-n-butylmagnesium and diethylmagnesium with a n-butyl:ethyl alkyl group ratio of about 0.25:1 to about 4:1 which is soluble in aliphatic, cycloaliphatic, and aromatic hydrocarbon solvents is disclosed. The composition is prepared in the substantial absence of oxygen and moisture by the simultaneous or consecutive reactions of ethyl and n-butyl halides with metallic magnesium in the presence of the hydrocarbon solvent, followed by separation of the insoluble magnesium chloride and any unreacted magnesium metal from the resulting solution.

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Dickinson, TX, United States of America

Loyd W Fannin