Institut Francais Du Pe'trole

Daniel Cruypelinck

Dominique Commereuc

Yves Chauvin

Gerard Leger

Nhuong Le Quan

Francois Hugues

Patrick Chaumette

Catherine Verdon

Georges Vidouta

Jean-Pierre Soufflet

The invention relates to a process for the conversion of synthesis gases into a mixture of essentially linear and saturated hydrocarbons, characterized by the use of a catalyst prepared by a gelling procedure, incorporating cobalt, copper and ruthenium, the cobalt, copper and ruthenium being dispersed on a support having at least one oxide of a metal chosen from within the group formed by silica and alumina, the cobalt content, expressed by cobalt weight based on the catalyst weight, being between 1 and 60% by weight, the ruthenium content, expressed by ruthenium weight based on the cobalt weight, being between 0.1 and 20%, and the copper weight, expressed by copper weight based on the cobalt weight, being between 0.1 and 10%.

Cobalt-based catalyst and process for converting synthesis gas into

A catalyst is formed by reacting, in a hydrocarbon medium, a trialkylaluminum with a mixture of an alkyl titanate with an ether. The activity and the selectivity are improved when adding the trialkylaluminum to a pre-formed mixture of alkyl titanate with ether.

Catalyst suitable for synthesizing 1-butene by dimerization of ethylene

Nickel, aluminum and chlorine derivatives which remain dissolved in olefin oligomers, after oligomerization in the presence of a nickel, aluminum, and chlorine-containing catalysts, are removed by successive treatments with:

Process for removing nickel, aluminum and chlorine from olefin oligomers

Process for synthesizing 1-butene by dimerization of ethylene, in the presence of a catalyst formed by reacting, in a hydrocarbon medium, a trialkylaluminum with a mixture of an alkyl titanate with an ether. The activity and the selectivity are improved when adding the ether to a pre-formed mixture of alkyl titanate with trialkylaluminum.

Process for synthesizing 1-butene by dimerization of ethylene

New catalytic composition of improved activity in the process of polymerizing cycloolefins, comprising a carbonyl compound or a carbonyl-metal-carbenic compound of molybdenum or tungsten and titanium tetrachloride, said composition being preferably subjected to an irradiation with rays of a wave length from 180 to 700 nanometers during or before use.

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Nanteuil Le Haudoin, France

Daniel Cruypelinck