Henkel Kommanditgesellschaft Auf Aktien

Cognis Deutschland Gmbh & Co. Kg

Udo Steinberner

Lutz Jeromin

Achim Ansmann

Bernd Fabry

Uwe Ploog

Alfred Westfechtel

Guenter Uphues

Eberhard Peukert

Michael Koehler

Horst-Dieter Komp

Reinhold Sedelies

Dirk Springer

Ralf Bohlander

Guenter Demmering

Christiane Boehr

Gerhard Dieckelmann

Otto Michel

Bernhardt Gutsche

Richard Ridinger

Klemens Eckwert

Sven Jaensch

Gerd Mueller

Frank Bartschik

Franz Buettgen

Ralf Koecher

Hans Ackermann

Bernhard Leeners

Processes for preparing surfactant granules, wherein the processes comprise: (a) passing a water-containing surfactant preparation through a casting plate, wherein the casting plate vibrates, such that droplets of the preparation are formed; and (b) contacting the droplets with a gaseous drying agent; are described.

Processes for the preparation of low dust, limited particle size distribution, surfactant granules

Unsaturated fatty compounds with improved low-temperature behavior

The invention relates to a process for the production of Guerbet alcohols by condensation of aliphatic alcohols in the presence of alkali metal or alkaline earth metal hydroxides as catalyst using the Guerbet reaction, in which the initial pressure in the reactor corresponds to the vapor pressure of the alcohol components used and, during the reaction, the pressure is continually reduced to the vapor pressure of the reaction mixture at the particular temperature.

Process for the production of Guerbet alcohols

Process for the production of low-viscosity imidazolinium surfactants by

In a jet pump, the suction pressure (Po) generated may be kept constant within predetermined limits and times by varying the pressure ratio f(p) providing a prescribed value for the pressure ratio f(p) is determined by computer-aided iterative changing of an existing value of the pressure ratio f(p) using an algorithm and a measured value for the pressure (Pe) of the delivery fluid.

Method for controlling the pressure ratio of a jet pump

In a multistage process for the continuous epoxidation of double bonds of terminal and non-terminal olefins containing more than 12 carbon atoms, unsaturated higher fatty acids and their lower alkanol and lower alkanediol esters and also unsaturated fatty alcohols containing from 8 to 18, preferably 18, carbon atoms and triglycerides of higher fatty acids including unsaturated fatty acids, preferably soyabean oil, using performic acid formed in situ from hydrogen peroxide and formic acid, the reactants, olefin and hydrogen peroxide/formic acid, are passed at ambient pressure in cross-counter flow through an at least three-stage reaction cascade. The olefinic phase is introduced into the first reaction stage, the hydrogen peroxide and the formic acid are introduced in separate streams into the penultimate reaction stage and the olefin phase and the hydrogen peroxide/formic acid phase (acid water phase) are separated from one another in a phase separator after each reaction stage. The olefinic phase passes successively through reaction stages I to n while the acid water, after reaction stage (n-1), passes through reaction stages (n-2) to 2 in counter flow to the olefin phase and then through stages n and 1, the reaction temperature being maintained in the range from 50.degree. to 80.degree. C. in the reactors and in the range from 15.degree. to 60.degree. C. in the phase separators.

Continuous process for the catalytic epoxidation of olefinic double

Growing community of inventors

Hilden, Germany

Udo Steinberner