Oxea Corporation

Celanese Chemicals Europe Gmbh

Oxea Deutschland Gmbh

Klaus Schmid

Wolfgang Dukat

Edgar Storm

Rainer Lukas

Horst Scholz

Peter Lappe

Wolfgang Greb

Wolfgang Zgorzelski

Jörg Arnold

Christoph Balzarek

Sandra Fürmeier

Thomas Klein

Andreas Fischbach

Lukas Rainer

The invention relates to a method for reprocessing a liquid product of a hydroformylation reaction, wherein the liquid phase produced in a release stage is supplied to a separating device from which a liquid flow containing rhodium is guided away via a filter, where solids thereby separated are taken out of the process and the filtrate obtained is guided back into the hydroformylation reaction.

Method for reprocessing a liquid hydroformylation product

Aldehydes are produced by unmodified rhodium catalyzed hydroformylation process in a homogeneous organic phase using a solution of unmodified rhodium catalyst and an organic acid in a total amount, calculated as acid equivalent, of from greater than 3 moles to 3000 moles of acid per mole of rhodium. The organic acid is selected from: saturated aliphatic monocarboxylic acids having from 5 to 13 carbon atoms in the molecule; saturated aliphatic dicarboxylic acids having from 5 to 13 carbon atoms in the molecule; sulphonic acids having from 1 to 12 carbon atoms in the molecule; and combinations thereof. Use of the process can lead to either a significant increase in conversion without reducing selectivity for the desired aldehyde or a reduction in the specific use of rhodium.

Method for the production of aldehydes

The present invention relates to a process for preparing 3(4),8(9)-dihydroxymethyltricyclo[5.2.10]decane by hydrogenating the hyd roformylation products of d icyclopentad lene. The process comprises carrying out the hydrogenation in the presence of water, optionally after addition of water.

Process for preparing TCD-alcohol DM

A process for purifying alicyclic alcohols by distillation, wherein the alicyclic alcohols are distilled in the presence of from 1 to 550 ppm of acidic compounds.

Process for purifying alicyclic alcohols

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Dinslaken, Germany

Klaus Schmid