Activation of the Ti(OC4H9)4-Al(C2H5)3 catalytic system in the selective dimerization of ethylene to 1-butene by the grignard reagent

Authors :: Dzhabieva, Z. M.
Babkina, O. N.
Belov, G. P.
Zhukov, V. I.
D'yachkovskii, F. S.
Source :: Russian Chemical Bulletin; October 1992, Vol. 41 Issue: 10 p1781-1786, 6p
Publication Year :: 1992
Abstract: The effect of an organomagnesium compound on the dimerization of ethylene to 1-butene was studied. The organomagnesium compound increases the catalytic activity of the Ti(OC<subscript>4</subscript>H<subscript>9</subscript>)<subscript>4</subscript>-Al(C<subscript>2</subscript>H<subscript>5</subscript>)<subscript>3</subscript> system by 5–10 times. A high degree of selectivity (up to 99%) with respect to 1-butene was obtained. This makes it possible to eliminate a series of technological difficulties involved in the industrial production of 1-butene. The kinetics of the reduction of Ti(OC<subscript>4</subscript>H<subscript>9</subscript>)<subscript>4</subscript> by butylmagnesium chloride were studied by ESR and polarography.

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