Evonik Degussa Gmbh

Evonik Membrane Extraction Technology Ltd.

Velichka Yordanova Koleva

Andrew Timothy Boam

Maria Ines Fontes Rocha

Yuri Bouwhuis

Michael Schwarm

Phillip R James

Felix Nissen

Fui Wen Lim

Sverre Sondbo

Eddy G Torp

Henrik Fismen

The present invention relates to production processes for reactive monomer species. The method described herein may be used in a variety of reactive monomer production processes to optimize the use of polymerization inhibitor compounds, which may lead to further advantages such as debottlenecking or elimination of process plant separation unit(s). The method provides for the separation of oligomeric/polymeric species, inhibitor compounds and reactive monomer, optionally in the presence of unreacted raw materials or solvent(s), within the production process by means of membrane filtration, particularly through the use of solvent stable membranes, and in particular by applying organic solvent nanofiltration membranes.

Method for improved reactive monomer production with membrane filtration

The present disclosure relates generally to a process for manufacturing products enriched in the content of at least one vitamin E component, preferably tocotrienol, using solvent extraction and membrane filtration.

Method for producing vitamin E-enriched, especially tocotrienol-enriched, compositions from natural oils

The present disclosure relates generally to processes for reducing impurities and separating natural components from a non-marine fatty acid oil mixture using at least one selective membrane, and compositions thereof.

Membrane-based processes for reducing at least one impurity and making a concentrate comprising at least one natural component from a non-marine fatty acid oil mixture, and compositions resulting thereof

Growing community of inventors

Haltern am See, Germany

Velichka Yordanova Koleva