Evonik Degussa Gmbh

Evonik Operations Gmbh

Sven Schneider

Stephan Kohlstruk

Monika Berweiler

Anne Rittsteiger

Guido Streukens

Sabrina Sowka

Alexander Martin Rüfer

Stefan Röder

Norbert Schlüter

Axel Hengstermann

Dirk Hoppe

Christian Lettmann

Markus Galle

Norbert Schlueter

Alexander Martin Ruefer

Stefan Roeder

Alexander Martin RÜFER

The present invention relates to a process for hydrogenating nitrile compounds to amino compounds, in which the cross-sectional loading of the reactor during the hydrogenation is less than or equal to 4.0 kg/m*s, based on the liquid phase.

Process for preparing amino compounds from nitrile compounds

Process for preparing isophoronediamine, characterized in that

Process for preparing 3 aminomethyl-3,5,5-trimethylcyclohexylamine

Isophoronediamine, is prepared by A) subjecting isophoronenitrile directly in one stage to aminating hydrogenation to give isophoronediamine in the presence of ammonia, hydrogen, a hydrogenation catalyst and an optional additive, and in the presence or absence of an organic solvent; or B) first converting isophoronenitrile fully or partly in at least two or more than two stages to isophoronenitrile imine, and subjecting the isophoronenitrile imine to aminating hydrogenation to give isophoronediamine as a pure substance or in a mixture with another component and/or isophoronenitrile, in the presence of at least ammonia, hydrogen and a catalyst.

Process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine

Method for preparing diamino-dianhydro-dideoxyhexitols, particularly 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol. The invention related to a method for preparing diamino-dianhydro-dideoxyhexitols, particularly preferably 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol.

Method for preparing diamino-dianhydro-dideoxyhexitols, particularly preferably 2,5-diamino-1,4:3,6-dianhydro-2,5-dideoxy-D-hexitol

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Datteln, Germany

Sven Schneider