Method of dimerization of alpha-olefins

Details Method of dimerization of alpha-olefins Method of dimerization of alpha-olefins

1977-02-17

1978-07-18

Davis, C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 310

Patent

active

041016009

ABSTRACT:
The method of dimerization of alpha-olefins consists in mixing at least one alpha-olefin with a two-component catalyst consisting of organic compounds of titanium, having the general formula Ti (OR).sub.4, and of aluminum, having the general formula AlR.sub.3, where R is an alkyl having from 1 to 6 carbon atoms, or an aryl, in a medium of a hydrocarbon solvent, at a temperature of 0.degree. to 100.degree. C and a pressure from 1 to 30 atm. Said constituents of the catalyst are pretreated with an ethylene-hydrogen mixture, containing from 5 to 95 percent by volume of hydrogen, at a temperature of from 0.degree. to 100.degree. C and a pressure of the ethylene-hydrogen mixture from 0.2 to 15 atm., for a period of time from 1 to 120 minutes. The method ensures high yields of butene-1 and hexenes, and high selectivity of the catalyst to said products. The butene-1 content of the butane mixture obtained in the process of ethylene dimerization is as high as 99 percent. The yield of butene-1 is from 80 to 345 g per gram of Ti(OR).sub.4 per hour. The hexene content in the dimerizate obtained in the process of dimerization of propylene, or a mixture of ethylene and butene-1, is 25 percent. The yield of hexenes is from 4 to 80 g per gram of Ti(OR).sub.4 per hour. The formation of polymers is significantly reduced.

REFERENCES:
patent: 3564071 (1971-02-01), Izawa et al.

Affiliated with

Also associated with

Rating

Method of dimerization of alpha-olefins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of dimerization of alpha-olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of dimerization of alpha-olefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-339550