Zirconium phosphine complex catalyst

Details Zirconium phosphine complex catalyst Zirconium phosphine complex catalyst

1974-07-12

1977-05-31

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431D, B01J 3102

Patent

active

040268225

ABSTRACT:
A catalyst composition for the polymerization, including oligomerization and codimerization, of olefins is provided by combining (A) zirconium, (B) a monophosphine electron donor ligand, and (C) a Lewis acid-reducing agent, in molar ratios of (B) to (A) of about 1 to 10:1 and (C) to (A) of about 1 to 40:1. Preferred catalyst components are zirconium acetylacetonate, triphenylphosphine or tri-n-butylphosphine and ethylaluminum sesquichloride. The catalyst composition of this invention may be employed in the dimerization of olefins such as propylene as well as in codimerization reactions, such as the preparation of heptenes from propylene and butenes.

REFERENCES:
patent: 2832759 (1958-04-01), Nowlin
patent: 2951066 (1960-08-01), Coover et al.
patent: 3051692 (1962-08-01), Lyons
patent: 3081287 (1963-03-01), Coover et al.
patent: 3379706 (1968-04-01), Wilke
patent: 3576902 (1971-04-01), Bearden et al.

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