Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1987-02-02
1988-08-30
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502108, 525 53, 526 90, 526159, C08F 464
Patent
active
047677350
ABSTRACT:
A process for pretreating a Ziegler-type catalyst for use in olefin polymerization reactions. An olefin monomer is aded to a fluid carrier stream containing a Ziegler-type catalyst. The carrier stream containing the monomer and the catalyst is passed through an elongated tubular reactor at a flow rate sufficient to provide a residence time in the tubular reactor of less than 1 minute and under temperature conditions to prepolymerize the catalyst within the tubular reactor without plugging of the reactor. In a specific embodiment the residence time within the reactor is no more than 10 seconds, and more particularly, no more than 2 seconds.
REFERENCES:
patent: 3113115 (1963-12-01), Ziegler et al.
patent: 3793295 (1974-02-01), Luciani et al.
patent: 3893989 (1975-07-01), Leicht et al.
patent: 4107413 (1978-08-01), Giannini et al.
patent: 4187196 (1980-02-01), Giannini et al.
patent: 4200717 (1980-04-01), Abe et al.
patent: 4226741 (1980-10-01), Luciani et al.
patent: 4287328 (1981-09-01), Kikuta et al.
patent: 4294721 (1981-10-01), Cecchin et al.
patent: 4316966 (1982-02-01), Mineshima et al.
patent: 4390454 (1983-06-01), Cuffiani et al.
patent: 4439540 (1984-03-01), Cecchin et al.
patent: 4495338 (1985-01-01), Mayr et al.
patent: 4547476 (1985-10-01), Terano et al.
Szabo, Contact Catalysis, vol. 2, p. 342, (1976), Pub. By Elsevier Scientific Pub. Co., N.Y., N.Y.
"Polypropylene," Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, John Wiley & Sons, 1981, vol. 16, pp. 453-469.
Bitzer Alan H.
Ewen John A.
Abokhair John K.
Cheairs M. Norwood
Cosden Technology, Inc.
Garvin Patrick P.
Jackson William D.
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