Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Halogen or compound containing same
Patent
1992-07-16
1994-03-01
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Halogen or compound containing same
502256, 502306, 502308, 502309, 502319, 502320, C08F 422
Patent
active
052907481
ABSTRACT:
The present invention concerns a polymerization catalyst of olefins, said catalyst containing an active chromium compound on an inorganic support. The catalyst in accordance with the invention is prepared by vaporizing a precursor of chromium oxide such as chromyl chloride and allowing the chromium oxide vapor to react with the surface of, e.g., silica gel support material at 160.degree. . . . 500.degree. C. A selective binding of the chromium oxide to the support material is achieved by keeping the vapor pressure sufficiently high and the duration of interaction with the support sufficiently long so as to maintain an excess of the chromium compound in relation to the number of available binding sites on the support material. The activity of a catalyst in accordance with the invention even with a very low content of catalytic metal is as high as the activity of a catalyst of an appreciably higher metal content that has been prepared by the methods of the conventional technology.
REFERENCES:
patent: 3346511 (1967-10-01), Hill
patent: 4013822 (1977-03-01), Feichtinger et al.
patent: 4054539 (1977-10-01), Hensley, Jr.
patent: 4147849 (1979-04-01), Liu et al.
patent: 4184979 (1980-01-01), Kirch et al.
patent: 4362654 (1982-12-01), Vance, Jr. et al.
patent: 4439543 (1984-03-01), McDaniel et al.
McDaniel, MP, "The State of Cr(VI) on the Phillips . . . , " Journal of Catalysis 76, 17-28 (1982), (no month available).
Knuuttila Hilkka
Lakomaa Eeva-Liisa
Garvin Patrick P.
Neste Oy
Peebles Brent M.
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