Evonik Roehm Gmbh

Evonik Rohm Gmbh

Christian Maul

Volker Schleep

Ingo Sander

Joachim Knebel

Bardo Schmitt

Thorben Schütz

Benedikt Laux

Dirk Broell

Guido Protzmann

Thorben Schuetz

Thomas Kehr

Harald Trauthwein

Klaus Gottmann

Dirk Bröll

Patrick Peter

Dieter Bathen

Claus Zimmer

Reinhold Martin

The invention relates to a process for preparing N-alkyl(meth)acrylamides by reacting (meth)acrylic anhydride with corresponding alkylamines.

Process for preparing N-alkyl(meth)acrylamides

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 present invention relates to a process for preparing allyl methacrylate, comprising the reaction of allyl alcohol with an ester of methacrylic acid, wherein the reaction is catalyzed by zirconium acetylacetonate. The process according to the invention enables particularly favorable preparation of allyl methacrylate with a very high purity.

Method for synthesizing allyl methacrylate

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Neustadt a.d.W., Germany

Christian Maul