Process for the production of polyisobutenes

Details Process for the production of polyisobutenes Process for the production of polyisobutenes

1980-09-22

1981-12-15

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C07C 202

Patent

active

043061052

ABSTRACT:
A process for selectively producing liquid polyisobutene contacting a feed stream containing mixed butenes with a dry chlorinated alumina catalyst at a temperature of from about -15.degree. to about 50.degree. C. wherein the chlorinated alumina contains from about 2 to 20% by weight of chlorine and the alumina has a purity of at least 99% and a surface area greater than 150 m.sup.2 /g with at least 10% of the pores having a mean diameter larger than 200A and recovering polyisobutenes having a molecular weight between about 280 and 4000.

REFERENCES:
patent: 3600129 (1971-08-01), Vesely et al.
patent: 3607959 (1971-09-01), Estes et al.

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