Catalyseur et procédé d'hydrogénation de composés oléfiniquement insaturés

Catalyst and process for hydrogenating olefinically unsaturated compound

Katalysator und Verfahren zur Hydrierung von olefinisch ungesättigten Verbindungen

Abstract

A hydrogenation catalyst comprising (A) a transition metal compound in which a group having a heterocyclic skeleton is bonded to Ti, Zr or Hf through an oxygen atom or a nitrogen atom, a representative of which compound is bis(cyclopentadienyl)titanium bis(tetrahydrofurfuryloxy) and (B) an organic compound, halide or hydride of a metal of Groups I to III of the Periodic Table or comprising the constituent (A), the constituent (B) and (C) a polar, organic compound such as an alcohol, a carboxylic acid or the like. An olefinically unsaturated compound can be hydrogenated with a high efficiency by contacting the compound with hydrogen in the presence of the above catalyst in an inert, organic solvent. The above catalyst has a very high catalytic activity, is excellent in hydrogenation selectivity and thermal resistance, also excellent in storage stability and maintainability of catalytic activity and is hardly affected by the co-existing impurities.

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    Title
    DATABASE WPI Section Ch Week 199615, Derwent Publications Ltd., London, GB; Class A12, AN 1996-146206, XP002121558

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    EP-1403286-A1March 31, 2004ENI S.p.A., Polimeri Europa S.p.A.Verfahren zur Hydrierung von Polymeren und Copolymeren aus konjugierten Dienen
    EP-1721910-A1November 15, 2006Polimeri Europa S.p.A.Process for the selective hydrogenation of unsaturated (co)polymers
    US-6461993-B1October 08, 2002Shell Oil CompanyMethod for preparing a hydrogenation catalyst system
    US-6831135-B2December 14, 2004Eni S.P.A., Polimeri Europa S.P.A.Process for the hydrogenation of homopolymers and copolymers of conjugated dienes
    US-7473741-B2January 06, 2009Polimeri Europa S.P.A.Process for the selective hydrogenation of unsaturated (co)polymers
    WO-0025915-A2May 11, 2000Shell Internationale Research Maatschappij B.V.Procede pour la mise au point d'un systeme de catalyseur d'hydrogenation
    WO-0025915-A3August 10, 2000Shell Int ResearchProcede pour la mise au point d'un systeme de catalyseur d'hydrogenation