Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1985-06-04
1986-05-27
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...
502103, 502108, 502113, 502118, 502119, 502121, 502122, 502123, 502124, 502125, 502126, 502127, C08F 464
Patent
active
045915776
ABSTRACT:
A solid catalyst component for .alpha.-olefin polymerization which, when produced, causes any troubles due to its small particle size and when used, yields a spherical polymer of a suitably less particle size and a high bulk density with a slightest quantity of atactic polymer and affording a very good dispersibility of powdery additives therein in spite of its narrow particle size distribution, and a process for producing the same, are provided, which solid catalyst component comprises Ti and Cl as active ingredients, having an average particle diameter of 2 to 10.mu., a specific surface area of 100 m.sup.2 /g or more and a diffraction line corresponding to a distance between lattices of 4.80 to 5.10 .ANG. by way of X-ray diffraction; and which process is characterized in that when TiCl.sub.4 is reduced with a reducing agent comprising an organoaluminum compound to produce a solid intermediate, there is employed an agitation intensity defined by definite values of agitation power and baffle ratio.
REFERENCES:
patent: 3179604 (1965-04-01), Ingberman
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patent: 4192774 (1980-03-01), Kortbeek et al.
patent: 4304891 (1981-12-01), Sato et al.
patent: 4387198 (1983-06-01), Sato et al.
Sato Akihiro
Shimizu Hiroshi
Tachibana Masami
Uwai Toshihiro
Chisso Corporation
Garvin Patrick P.
Philpitt Fred
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