Evonik Degussa Gmbh

Evonik Operations Gmbh

Matthias Bahlmann

Rolf Schneider

Xinming Wang

Benjamin Willy

Olivier Zehnacker

Christoph Hiller

Jan Wolter

Stefan Münzner

Caixuan Xu

Jennifer Heymann

Markus Lütkehaus

Thomas Kerl

Werner Escher

A process and an apparatus for dehumidifying a moist gas mixture are provided. The apparatus for dehumidifying a moist gas mixture can be used and in the process. The absorption medium used in the process and the apparatus is also provided.

Process for dehumidifying moist gas mixtures

A process which can extract a fatty acid from a triglyceride oil includes (a) contacting a triglyceride oil Tmade of a fatty acid with an aqueous solution Wmade of a quaternary ammonium salt and an aliphatic diol having 1 to 8 carbon atoms, where a triglyceride oil phase Tand an aqueous phase Ware obtained, where Thas a reduced content of fatty acids compared to Tand Whas an increased content of fatty acids compared to W; and (b) separating the triglyceride oil phase Tfrom the aqueous phase W. The quaternary ammonium salt includes a quaternary ammonium cation and a basic anion selected among hydroxide, alkoxide, alkyl carbonate, hydrogen carbonate, carbonate, serinate, prolinate, histidinate, threoninate, valinate, aspartate, taurinate, and lysinate.

Process for extracting fatty acids from triglyceride oils

The invention relates to a process for purifying an ionic liquid comprising dialkylimidazolium ions by means of stripping, wherein water vapor is used at a particular temperature. The process according to the invention is characterized in that the decomposition of the ionic liquid is minimized during the procedure of the process.

Process for purifying an ionic liquid

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Heiden, Germany

Matthias Bahlmann