Olefin polymerization catalyst compositions and polymerization process

Patent · Tue Apr 14 04:00:00 EDT 1987

OSTI ID:6762733

Job, R C

This patent describes a process for the catalytic polymerization of an olefin by contact with a catalyst composition comprising an organoaluminum compound, a selectivity control agent and a solid titanium-containing catalyst component in which the atomic ratio of aluminum to titanium is from 1:1 to 150:1. The solid component is obtained by: (a) halogenating a magnesium compound of the formula MgR'R'' where R' is an alkoxide or aryloxide group and R'' is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) contacting the halogenated product with an acid halide; (c) contacting the resulting acid halide-treated product with a tetravalent titanium halide at a temperature of about 40/sup 0/ to about 140/sup 0/C; and (d) washing the resulting titanium halide-treated product with an inert hydrocarbon liquid.

• Assignee: Shell Oil Co., Houston, TX
• Patent Number(s): US 4657995
• OSTI ID: 6762733
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALKENES
ALKOXIDES
ALKYL RADICALS
ALUMINIUM COMPOUNDS
ARYL RADICALS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
HIGH TEMPERATURE
HYDROCARBONS
MAGNESIUM COMPOUNDS
MEDIUM TEMPERATURE
ORGANIC COMPOUNDS
POLYMERIZATION
QUANTITY RATIO
RADICALS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS