Basf Aktiengesellschaft

Basf Se Corporation

Rolf-Hartmuth Fischer

Johann-Peter Melder

Hermann Luyken

Andreas Ansmann

Peter Bassler

Stephan Schlitter

Michael Hesse

Alexander Weck

Holger Borchert

Markus Rösch

Frank Ohlbach

Stefan Maixner

Nils Bottke

Christoph Benisch

Rolf Pinkos

Markus Schubert

Frank Stein

Ralf-Thomas Rahn

Gunther Windecker

Gunnar Heydrich

Guido Voit

Werner Schnurr

Klemens Flick

Christoph Sigwart

Peter Baβler

Robert Baumann

Stephan Andreas Schunk

Ulrich Steinbrenner

Eberhard Fuchs

Manfred Julius

Dieter Baumann

Peter Stops

Martin Haubner

Karl-Heinz Ross

Tilman Sirch

Erhard Henkes

Andrea Haunert

Martin Rudloff

Helmut Winterling

Helmut Schmidtke

Gerd Bohner

Thomas Nöbel

Markus R&ouml;sch

Rolf Lebkücher

Ekkehard Schwab

Alfred Oftring

Hartmut Hibst

Gerd Kaibel

Wolfgang Harder

Andreas Tenten

Thomas Krug

Michael Röper

Norbert Götz

Gerhard Cox

Wolfgang Loth

Roman Dostalek

Gerd-Dieter Tebben

Axel Paul

Shelue Liang

Veronika Wloka

Michael Jolyon Sprague

Joachim Wulff-Döring

Thomas Narbeshuber

Gerd Linden

Christian Tragut

Joachim Wulff-D&ouml;ring

Thomas Domschke

Sylvia Huber

Sylvia Huber-Dirr

Wolfram Stüer

Günther Achhammer

Take Constantinescu

Walter Dörflinger

Jochen Pfeifer

Gerd-Dieter Dr Tebben

Peter Basler

A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein

Method for continuous production of adiponitrile

A process is described for preparing purified caprolactam, comprising the steps

Process for preparing purified caprolactam from the Beckmann rearrangement of cyclohexane oxime

The present invention relates to an improved process for batchwise or continuous isomerization of cis-2-pentenenitrile to 3-pentenenitriles in the presence of 1,4-diazabicyclo[2.2.2]octane as catalyst.

Process for isomerization of cis-2-pentenenitrile to 3-pentenenitriles

The present invention relates to a process for preparing diols by hydrogenating a mixture comprising carboxylic acid, carboxylic anhydrides and/or carboxylic esters/lactones by means of a cobalt-comprising catalyst, wherein alkali metal and/or alkaline earth metal ions are added to the hydrogenation feed, excluding alkali metal and/or alkaline earth metal ions of mineral acids.

Process for preparing diols by hydrogenating a carboxylic acid-comprising mixture by means of cobalt-comprising catalysts

The present application relates to an improved process for preparing 6-hydroxycaproic esters from the by-product mixtures which are obtained in the oxidation of cyclohexane to cyclohexanol and cyclohexanone with oxygen or oxygen-comprising gas mixtures.

Process for preparing 6-hydroxycaproic esters

The iron-containing catalyst suitable for use as a catalyst contains a) iron or a mixture containing iron and an iron-based compound. The iron has an average crystallite size ranging from 1-35 nm measured by X-ray diffraction.

Iron-containing material suitable for use as hydrogenation catalyst

The disclosure relates to a process for purifying crude caprolactam. The process involves converting a first mixture of 6-amino capronitrile and water to a second mixture of caprolactam ammonia, water, high boilers and low boilers using a catalyst. The ammonia is removed from the second mixture to obtain a third mixture. Water is removed from the third mixture to give crude caprolactam, high boiler and low boilers. Purified caprolactam is then obtained by a series of distillation steps.

Method for purifying caprolactam

A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by

Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof

Crude water-containing tetrahydrofuran is purified by passing the crude tetrahydrofuran through three distillation columns, withdrawing water from the bottom of the first column, recycling water-containing tetrahydrofuran from the top of the second column into the first column, passing a sidestream of the first column into the second column, recycling the bottom product of the third column into the first column, and withdrawing a distillate at the top of the first column. Additionally, a sidestream of the second column is passed into the third column and the purified tetrahydrofuran is recovered as the top product of the third column.

Method for purifying tetrahydrofuran by distillation

A catalyst for the hydrogenation of C-dicarboxylic acids and/or derivatives thereof, preferably maleic anhydride, in the gas phase comprises

Method for the selective production of tetrahydrofuran by hydrogenating maleic acid anhydride

Optionally alkyl-substituted 1,4-butanediol is prepared from C-dicarboxylic acids and/or of derivatives thereof by: The catalysts employed in each of the hydrogenation stages comprise &#x2266;95% by weight of CuO, and &#x2266;5% by weight of an oxidic support, and the second reactor has a higher pressure than the first reactor.

Two-stage method for producing butanediol with intermediated separation of succinic anhydride

A process for preparing toluene derivatives of the formula I, where R, Rand Rindependently of one another are hydrogen, halogen, C&#x2013;C-alkyl, hydroxyl or C&#x2013;C-alkoxy, by hydrogenating benzaldehydes and/or benzyl alcohols of the formula II, with hydrogen in the presence of a catalyst, which is described in more detail in the description.

Method for producing toluol derivatives

Process for the continuous preparation of N-methyl-2-pyrrolidone (NMP) by reacting gamma-butyrolactone (GBL) with monomethylamine (MMA) in the liquid phase, wherein GBL and MMA are used in a molar ratio of from 1:1.08 to 1:2 and the reaction is carried out at from 320 to 380&#xb0; C. and an absolute pressure of from 70 to 120 bar.

Method for the continuous production of N-methyl-2-pyrrolidone (NMP)

A catalyst for the hydrogenation of C-dicarboxylic acids and/or their derivatives, preferably maleic anhydride, in the gas phase comprises from 5 to 100% by weight, preferably from 40 to 90% by weight, of copper oxide and from 0 to 95% by weight, preferably from 10 to 60% by weight, of one or more metals or compounds thereof selected from the group consisting of Al, Si, Zn, Pd, La, Ce, the elements of groups III A to VIII A and groups I A and II A as active composition applied in the form of a thin layer to an inert support material.

Catalytic coating for the hydrogenation of maleic anhydride and related compounds to give &#x3b3;-butyrolactone, tetrahydrofuran and derivatives thereof

The invention relates to a process for preparing optically active 2-amino-, 2-chloro-, 2-hydroxy- or 2-alkoxy-1-alcohols by catalytically hydrogenating appropriate optically active 2-amino-, 2-chloro-, 2-hydroxy- and 2-alkoxycarboxylic acids or their acid derivatives in the presence of catalysts comprising palladium and rhenium or platinum and rhenium.

Method for the production of optically active 2-amino 2-chloro, 2 hydroxy or 2-alkoxy-1-alcohols

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Heidelberg, Germany

Rolf-Hartmuth Fischer