Process for propylene dimerization

Details Process for propylene dimerization Process for propylene dimerization

C - Chemistry, Metallurgy

07

C

260/706.1

C07C 2/34 (2006.01) C07C 11/113 (2006.01)

Patent

CA 1268487

ABSTRACT This invention relates to a new method for the preparation of 4-methyl-1-pentene which is useful as a monomer or as a comonomer in the production of polyolefins. Typically, 4-methyl-1-pentene is produced via the catalytic dimerization of propylene. Commonly employed catalysts include those containing alkali metals or nickel. These previously employed catalysts are all unsatisfactory because they are not as selective as would be desired. Selectivities to 4- methyl-1-pentene of up to 93 percent have been reported, however, this is still unsatisfactory in view of the difficulty and expense involved in separating 4- methyl-1 pentene from the commonly coproduced C6 olefin and C6 alkane by-products.

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