Deactivation of catalysts of the Ziegler type used for the prepa

Details Deactivation of catalysts of the Ziegler type used for the prepa Deactivation of catalysts of the Ziegler type used for the prepa

1976-02-25

1978-08-08

Levin, Stanford M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

526 84, 526352, 528486, C08F 602

Patent

active

041056094

ABSTRACT:
The present invention relates to a process for the continuous polymerisation and copolymerisation of ethylene under a pressure higher than 500 bars and at temperatures higher than about 160.degree. C in the presence of a catalyst containing a derivative of a transition metal and an organic derivative of aluminium, wherein there is injected into the reaction mixture at the end of reaction at least one alkali metal salt or alkaline earth metal salt of a carboxylic acid, in an amount sufficient to bring about the deactivation of the catalyst, said salt being so chosen that its reaction products with the constituents of the catalyst remain in the polymer.

REFERENCES:
patent: 2985617 (1961-05-01), Salyer
patent: 3009907 (1961-11-01), Mahlman et al.
patent: 3075959 (1963-01-01), Wagener et al.
patent: 3265649 (1966-08-01), Faltings et al.
patent: 3476698 (1969-11-01), Osterrieth et al.

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