Other

Jury Mikhailovich Sivakov

Jury Ivanovich Michurov

Fridrikh S Dyachkovsky

Alexandr G Liakumovich

Viktor I Zhukov

Dmitry Vladimirovich Sokolsky

Grigory Iosifovich Rutman

Zoya Stepanovna Shalimova

Gennady Petrovich Belov

Leonid Alexandrovich Shilov

Anatoly Borisovich Fasman

Pavel Alexandrovich Vernov

Viktor Anatolievich Zavorin

Tulkibai Galikbarovich Dautov

Maria Nikolaevna Dyadjunova

Venera Fatykhovna Timofeeva

Daniel Kalimullovich Bazhakov

Nikolai Petrovich Shestak

Ivan Davydovich Shevlyakov

A catalyst for hydrogenolysis of N,N-dimethyl-3,5-ditert.butyl-4-hydroxybenzylamine which comprises an alloy of nickel, aluminum, chromium, molybdenum and palladium. The components are contained in said alloy in the following proportions, percent by weight:

Catalyst for hydrogenolysis of

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.

Method of dimerization of alpha-olefins

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Moscow, Russia

Jury Mikhailovich Sivakov