Polymerization catalyst, production and use

Patent · Tue Apr 14 04:00:00 EDT 1987

OSTI ID:6489022

Best, S A

A process is described for the polymerization of ethylene and alphaolefins having from 1 to 20 carbon atoms or mixtures of ethylene, alpha-olefins or diolefins. The process comprises polymerizing one or more olefins in the presence of the catalyst system comprising (A) an organo aluminum cocatalyst, and (B) a vanadium-containing catalyst component obtained by treating an inert support material in an inert solvent with (i) a dihydrocarbyl magnesium compound or a complex or mixture of an organic dihydrocarbyl magnesium compound and an aluminum compound, (ii) optionally an oxygen-containing compound which is an alcohol, ketone or aldehyde, (iii) a Group IIIa metal halide, (iv) at least one vanadium compound, and as the last step a second treatment with a Group IIIa metal halide.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4657997
• OSTI ID: 6489022
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALDEHYDES
ALKALINE EARTH METAL COMPOUNDS
ALKENES
ALUMINIUM COMPOUNDS
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
ETHYLENE
HYDROCARBONS
HYDROXY COMPOUNDS
KETONES
MAGNESIUM COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYMERIZATION
QUANTITY RATIO
SOLVENTS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS