Oxeno Olefinchemie Gmbh

Evonik Oxeno Gmbh

Evonik Degussa Gmbh

Dirk Röttger

Klaus-Diether Wiese

Franz Nierlich

Ralf Jackstell

Dietrich Maschmeyer

Alfred Kaizik

Armin Matthias Rix

Cornelia Borgmann

Matthias Beller

Markus Winterberg

Wilhelm Droste

Reiner Bukohl

Wilfried Büschken

Udo Peters

Andreas Beckmann

Axel Tuchlenski

Dieter Reusch

Stephan Houbrechts

Holger Klein

Jochen Praefke

Silvia Santiago Fernandez

Lothar Kerker

Walter Tötsch

Frank Höper

Matthias Grömping

The invention relates to a process for preparing 1-butene from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes by partial conversion of the isobutene present, distillative removal of a fraction comprising 1-butene and isobutene, and conversion of the isobutene present therein to tert-butyl ethers.

Process for preparing 1-butene from technical mixtures of C4 hydrocarbons

Isobutene in isobutenic hydrocarbon mixtures is oligomerized over a solid acidic ion exchange resin, said acidic ion exchange resin containing, for example, sulfonic acid groups, some of whose protons have been exchanged for metal ions.

Oligomerization of isobutene in N-butenic hydrocarbon streams

The present invention relates to a process for preparing a C-alcohol mixture which is suitable, in particular, as precursor for the preparation of compounds having surfactant properties and of plasticizers.

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The invention relates to a process for preparing 1-octene by reacting 1,3-butadiene with a telogen of the formula H&#x2014;X&#x2014;Y&#x2014;H, where X is O, N, S or P and Y is C, N or Si and X and Y bear, depending on their valence, further substituents, in the presence of a telomerization catalyst to form a telomer of the formula HC&#x2550;CH&#x2014;CH&#x2014;CH&#x2014;CH&#x2014;CH&#x2550;CH&#x2014;CH&#x2014;X&#x2014;Y&#x2014;H, partially hydrogenating the telomer to form a 1-substituted 2-octene of the formula HC&#x2014;CH&#x2014;CH&#x2014;CH&#x2014;CH&#x2014;CH&#x2550;CH&#x2014;CH&#x2014;X&#x2014;Y&#x2014;H and dissociating the 1-substituted 2-octene to give 1-octene.

Method for producing 1-octene

The invention provides a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures comprising such olefins by means of nucleophiles (II) using a palladium-carbene complex as catalyst.

Method for telomerizing non-cyclic olefins

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Recklinghausen, Germany

Dirk Röttger