Evonik Roehm Gmbh

Evonik Rohm Gmbh

Roehm Gmbh & Co Kg

Volker Schleep

Benedikt Laux

Christian Maul

Thomas Mertz

Ingo Sander

Dirk Broell

Dirk Bröll

Process for purifying unsaturated compounds, and a plant for performing the process. Unsaturated compound obtained by the process.

Method and plant for purifying unsaturated compounds

The present invention relates to a process for purifying monomers, by evaporating at least a portion of the monomers present in a starting composition and then condensing it, which is characterized in that at least a portion of the starting composition is evaporated in a short-path evaporator, the mass flow density of the vapors {dot over (m)} being selected according to the relation (I)  A further aspect of the present invention is a plant for performing the process.

Method and system for purifying monomers

A process for purifying an unsaturated compound, where purification is performed in a plant with evaporators.

The invention relates to a method for the continuous production of alkyl amino acryl amides by reacting alkyl acrylates with high-boiling amines. A specific preparation technique is used in order to achieve hitherto unobtainable product qualities. Very high spatial, temporal and overall yields can also be obtained.

Method for the continuous production of alkyl amino acryl amides

The invention relates to a process for continuously preparing alkylamino(meth)acrylamide by reacting methyl (meth)acrylate, ethyl (meth)acrylate or amines having a high boiling point compared to methanol or ethanol. A special workup technique which includes removing water from the amine before entering the reactor allows product qualities which have hitherto not been attained to be achieved. In addition, very high space-time and overall yields can be achieved.

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Einhausen, Germany

Volker Schleep