Sud-chemie Ag

Clariant International Ltd

Werner Zschau

Reinhard Hahn

Uwe Flessner

Thomas Engelhardt

Hermann Ebert

Norbert Schall

Stefan Dick

Wolfgang Buckl

Klaus Schurz

José Antonio Ortiz Niembro

Christian Fabry

Helmut Eicke

Christain Fabry

Walter Reinking Cejudo

Carlos Martinez Reyes

Jose Antonio Ortiz

The invention relates to a process of processing an acid suspension containing at least one solid, wherein (a) the suspension containing at least one solid is mixed with an alkali metal silicate solution, the pH of the mixture being adjusted to a pH of more than 4, and (b) the resulting precipitate which contains the alkali metal silicate and the at least one solid is separated and optionally washed, dried and ground. The mixture according to (a) after aging may be acidified further by the addition of an acid. Furthermore, there are disclosed an adsorbent obtainable according to the preceding process, and the use thereof.

Semi-synthetic bleaching earth

A process for the microbial activation of layer silicates.

Microbial activation of layer silicates

Use of naturally acid smectites to remove olefins from aromatics or

Catalyst for removing olefins from aromatic compounds or mixtures thereof

Adsorbent for treatment of oils and/or fats

A process is described for activation of layered silicates having an ion exchange capacity (IEC) of at least 25 meq/g by treating them with an acid, characterized in that the layered silicate is activated with about 1 to 10% by weight (based on the dry layered silicate) of an acid at a temperature of not more than 80.degree. C. and the activated layered silicate is calcined at temperatures of about 200.degree. to 400.degree. C. and comminuted desired.

Process for activating layered silicates

Growing community of inventors

Steinebach, Germany

Werner Zschau