Oxea Corporation

Hoechst Aktiengesellschaft

Celanese Chemicals Europe Gmbh

Horst Scholz

Peter Heymanns

Klaus Schmid

Wolfgang Dukat

Edgar Storm

Peter Lappe

Heinz Strutz

Kurt Schalapski

Rainer Lukas

Tonia Weber

Christoph Balzarek

Waldemar Kascha

Rolf-Peter Schulz

Alexander Kaufmann

Ernst Prott

Thomas Hupperich

Andreas Fischbach

Sandra Fürmeier

Lukas Rainer

The present invention relates to a process for obtaining neopentyl glycol by hydrogenating cracking of high-boilers occurring in the production process in the presence of copper-chromite catalysts. The hydrogenating cracking proceeds in the absence of solvent at a temperature of 140 to 220&#xb0; C. and at pressures of 7 to 28 MPa.

Process for preparing neopentyl glycol by cracking high boilers occurring in the production process

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

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

A process for removing contaminating coatings from metal surfaces in which the metal surface to be cleaned is brought into contact with an aqueous alkaline solution containing as an additive 0.1 to 10% by weight, based on the aqueous alkaline solution, of at least one compound of the formula

Process for removing contaminating coatings from metal surfaces

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Dinslaken, Germany

Horst Scholz