Process for the production of polyisobutenes
AssigneeCosden Technology, Inc.
InventorsMarshall W. Abernathy, James M. Watson, Georges E. M. J. De Clippeleir, Raymond M. Cahen
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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.
Claims13
Process for selectively producing liquid polyisobutenes comprising contacting a feed stream containing mixed butenes with a dry chlorinated alumina catalyst at a temperature of from about -15.degree. C. to about 50.degree. C., wherein said chlorinated alumina contains from about 2 to about 20% by weight of chlorine and the alumina has a purity of at least 99% and a surface area greater than about 150 m.sup.2 /g with at least 10% of the pores having a diameter larger than 200 A and recovering polyisobutenes having a molecular weight between about 280 and 4000.
Dependencies are inferred from the claim text.