Supported catalyst for olefin polymerization

Details Supported catalyst for olefin polymerization Supported catalyst for olefin polymerization

1981-12-21

1983-02-01

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526125, C08F 402, C08F 464

Patent

active

043714552

ABSTRACT:
A method for the preparation of supported Ziegler-Natta catalysts comprising the reduction of a transition metal compound with a magnesium containing reducing agent. The reducing agent is prepared in the presence of a magnesium chloride support utilizing an anhydrous and oxygen-free mixture of magnesium halide and magnesium metal, slurried in a hydrocarbon solvent. A halogenated hydrocarbon is added to activate the magnesium-containing reducing agent. Thereafter the transition metal compound is mixed with the slurry. The resulting solid is washed with a hydrocarbon solvent to eliminate residual transition metal compounds. The resulting washed solid is an active supported Ziegler-Natta olefin polymerization catalyst.

REFERENCES:
patent: 3801558 (1974-04-01), Fletcher et al.
patent: 4113654 (1978-09-01), Mayr et al.
patent: 4194075 (1980-03-01), Dietz et al.
patent: 4194076 (1980-03-01), Dietz et al.
patent: 4325840 (1982-04-01), Malpass

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