Solubilized chromium salt in polymerization catalyst

Details Solubilized chromium salt in polymerization catalyst Solubilized chromium salt in polymerization catalyst

1981-08-28

1983-01-11

Levin, Stanford M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252430, 252458, 526106, 5263485, 5263486, 526351, 526352, C08F 424

Patent

active

043683010

ABSTRACT:
A chromium salt such as ammonium chromate or ammonium dichromate, which is normally insoluble in nonaqueous solvents which do not easily rehydrate the silica surface is solubilized, for instance by treating it with a crown ether, and impregnated onto a particulate support from a nonaqueous solvent which does not easily rehydrate the silica. The resulting composition is then activated in an oxygen ambient such as air in a conventional manner and then utilized as a catalyst for polymerization reactions such as the production of polyolefins.

REFERENCES:
patent: 2984653 (1961-05-01), Witt
patent: 3072627 (1963-01-01), Holm
patent: 3349067 (1967-10-01), Hill
patent: 3709853 (1973-01-01), Karapinka
patent: 3879362 (1975-04-01), Chalfont et al.
patent: 3887494 (1975-06-01), Dietz
patent: 3900457 (1975-08-01), Witt
patent: 3976632 (1976-08-01), Delad
patent: 4015059 (1977-03-01), Karol
patent: 4016343 (1977-04-01), Hoff et al.
patent: 4053437 (1977-10-01), Liu et al.
patent: 4212765 (1980-07-01), Gutweiler

Affiliated with

Also associated with

Rating

Solubilized chromium salt in polymerization catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solubilized chromium salt in polymerization catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solubilized chromium salt in polymerization catalyst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-779403