Basf Se Corporation

Daniel Breuninger

Rolf Pinkos

Gerd-Dieter Tebben

Eckhard Stroefer

Torsten Mattke

Heiner Schelling

Kai Thiele

Veronika Wloka

Michael Zoellinger

Markus Kraemer

Klaus Ebel

Thomas Krug

Christophe Bauduin

Tilman Sirch

Markus Siegert

Matthias Eiermann

Nils Bottke

Rene Backes

Tobias Wabnitz

Peter Van Den Abeel

Maria Guixa Guardia

Martine Weis

Harald Winsel

Jens Heimann

Carsten Knösche

Olivier Abillard

Robert Reinhardt

Johannes Adam

Eva Kleinmann

Gerd-Dieter Dr Tebben

The present invention relates to a process for preparing an isocyanate, comprising hydrogenating a mixture (Gi) comprising an amine in the presence of a hydrogenation catalyst comprising copper to obtain a mixture (Gii) comprising the amine, and reacting the mixture (Gii) with phosgene to obtain a mixture (Giii) comprising the isocyanate. The present invention further relates to the isocyanate preparable by this process.

Process for preparing an isocyanate

The invention relates to a process for preparing 1,6-hexanediol, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol.

Method for producing 1,6-hexanediol

The invention relates to a process for preparing methylenediphenyldiamine (MDA) by reacting formaldehyde and aniline in the presence of an acidic catalyst, wherein the oxygen content in the process for preparing MDA is &#x3c;10 000 ppm, based on all compounds present in the process. The invention further relates to the phosgenation of MDA to methylenediphenyl diisocyanate (MDI).

Method for producing color-stable MDA and MDI

The invention relates to a process for preparing 1,6-hexanediol and caprolactone, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol and cyclizing 6-hydroxycaproic ester, the 1,4-cyclohexanediols being removed either in the course of fractionation of the esterification mixture or last from the caprolactone.

Method for producing 1,6-hexanediol and caprolactone

The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps

Method for the recovery of mineral acids from saline solutions

The present invention relates to a process for preparing phenylalkan-1-ols in three stages, where an ester condensation in the presence of alkali metal or alkaline earth metal alcoholates is carried out in the first stage.

Method for producing phenylalkane-1-ols

The invention provides a process for preparing diphenylmethanediamine, comprising the steps of

Process for preparing diphenylmethanediamine

The invention relates to a process for preparing &#x3b5;-caprolactone from 6-hydroxycaproic ester in the gas phase in the presence of activated carbon as a catalyst and subsequent distillation.

Process for preparing epsilon-caprolactone

The present invention provides a process for preparing 2-methyltetrahydrofuran by one-stage hydrogenation of furfural with a hydrogen-comprising gas in the presence of a structured bed of at least one copper catalyst and at least one catalyst which comprises at least one noble metal from groups 8, 9 and/or 10 of the periodic table of the elements applied on a support material.

Process for one-stage preparation of 2-methyltetrahydrofuran from furfural over two catalysts in a structured bed

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Bobenheim-Roxheim, Germany

Daniel Breuninger