Sulfiding and reoxidation of chromium catalyst

Details Sulfiding and reoxidation of chromium catalyst Sulfiding and reoxidation of chromium catalyst

1977-12-05

1979-12-04

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252428, 252431R, 252431C, 526100, 526106, 526130, B01J 2702, B01J 3102, B01J 3112

Patent

active

041771621

ABSTRACT:
High melt flow olefin polymers suitable for such applications as injection molding, and the like requiring a narrow molecular weight distribution are produced using a catalyst made by treating a chromium catalyst on a silica-containing base with a sulfur-containing material, and thereafter reoxidizing.

REFERENCES:
patent: 2726231 (1955-12-01), Field et al.
patent: 3349067 (1967-10-01), Hill
patent: 3756998 (1973-09-01), Karopinka
patent: 3812058 (1974-05-01), Nasser
patent: 3932285 (1976-01-01), Ceprini et al.
patent: 3953413 (1976-04-01), Hwang et al.
patent: 3986983 (1976-10-01), Hoff et al.
patent: 4042770 (1977-08-01), Bachl et al.
patent: 4054538 (1977-10-01), Johnson et al.

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