Basf Aktiengesellschaft

Juergen Stephan

Michael Hesse

Thomas Heidemann

Ulrich Steinbrenner

Markus Schubert

Andreas Brodhagen

Frank Poplow

Volker Boehm

Juergen Gert Tropsch

Gerhard Cox

Till Gerlach

Goetz-Peter Schindler

Heiko Maas

Thomas Hill

Marco Bosch

Michael Roeper

Regina Benfer

Thomas Narbeshuber

Nils Bottke

Uwe Diehlmann

Michael Triller

Martina Sinner-Lang

Jochen Pfeifer

The present invention relates to a process for preparing polyol alkyl ethers by reacting compounds comprising at least three hydroxyl functionalities with olefins in the presence of acidic catalysts at temperatures of from 20 to 250&#xb0; C. and pressures of from 0.5 to 10 bar, wherein the olefins correspond to the general formula (I) in which Ris hydrogen and Ris a linear or branched carbon radical having from 7 to 28 carbon atoms, or Rand Rare each linear or branched carbon radicals having from 1 to 27 carbon atoms, the sum of the carbon number of Rand Rbeing at most 28, to polyol alkyl ethers derived from compounds having at least three hydroxyl functionalities, not more than all but one hydroxyl functionality being replaced by a moiety of the general formula (VIII) to the use of these polyol alkyl ethers as surfactants and to laundry detergents and cleaning compositions comprising these polyol alkyl ethers.

Production of (co)surfactants by reacting polyols with olefins

The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions.

Activated metathesis catalysts

In a process for preparing alkylaryl compounds by reacting a C-monoolefin mixture with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds and if appropriate subsequently sulfonating and neutralizing the resulting alkylaryl compounds, in the C-monoolefins, on average, more than 0% and up to 100% of methyl branches are present in the longest carbon chain and fewer than 50% of the methyl branches are in the 2-, 3- and 4-position, calculated starting from the chain ends of the longest carbon chain.

Method for producing alkylaryl compounds and alkylaryl sulphonates

The preparation of alkylaryl compounds takes place, inter alia, by a) preparation of a C-olefin mixture from LPG, LNG or MTO streams, b) reaction of the C-olefin mixture obtained in this way over a metathesis catalyst for the preparation of an olefin mixture comprising-pentene and/or-hexene, and optional removal of-pentene and/or-hexene, c) dimerization of the-pentane and/or-hexene obtained in stage b) over a dimerization catalyst to give a mixture comprising C-olefins, and optional removal of the C- olefins, d) reaction of the C-olefin mixtures obtained in stage a) with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkylaromatic compounds, it being possible to add additional linear olefins prior to the reaction.

Process for the preparation of alkylaryl compounds and sulfonates thereof

Process for preparing a compound having a nonaromatic C&#x2014;C double or triple bond (compound A) from another compound or a mixture of other compounds having a nonaromatic C&#x2014;C double or triple bond (compound B), which comprises bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at from 50 to 500&#xb0; C.

Preparation of olefins by metathesis over a carbide or oxycarbide of a transition metal

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Mannheim, Germany

Juergen Stephan