Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1989-11-28
1991-09-17
Davis, Curtis R.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502104, 502120, 502133, 502170, B01J 3100
Patent
active
050495348
ABSTRACT:
Silica supports for use in the production of catalysts for olefin polymerization, in particular where the surface is substantially free from reactive hydroxyl groups, comprise (RCOO).sub.2 Mg deposited on the surface of the silica and/or groups of the general formula R(CO.sub.2 MgO).sub.n linked to surface silicon atoms, where R is a hydrocarbon radical and n=1 to 6. Such supports are suitable for the production of stereospecific catalysts of high activity in the polymerization of olefins especially propylene.
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patent: 4452912 (1984-06-01), Bahadir et al.
patent: 4468477 (1984-08-01), Caunt et al.
patent: 4568658 (1986-02-01), Cook et al.
patent: 4654318 (1987-03-01), Yamamoto et al.
Davis Curtis R.
Imperial Chemical Industries plc
Irzinski E. D.
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