Sachtleben Chemie Gmbh

Huntsman P&a Germany Gmbh

Venator Germany Gmbh

Institut Für Verbundwerkstoffe Gmbh

Sonja Grothe

Bernd Rohe

Peter Ebbinghaus

Jörg Hocken

Elke Gosch

Jochen Winkler

Petra Fritzen

Frank Haupert

Jens Kohnert

Christian Spitzwieser

Bernhard Becker

Ralf Schellen

Bernd-Michael Klein

Friedrich Müller

Tobias Thiede

Nicole Knör

Birgit Bittmann

A powdered catalyst material on a titanium oxide basis. The powdered catalyst material includes a combined content of at least 90 wt.-% of a hydrated titanium oxide having the general formula TiO(OH), with 0&#x3c;x&#x2264;1, (calculated as TiO), and a silicon dioxide and hydrated precursors of the silicon dioxide (calculated as SiO). A weight ratio of TiO/SiO, determined for TiOand SiOrespectively, is at least 3 and less than 30. The wt.-% is based on a total weight of the catalyst material after the catalyst material has been dried at 105&#xb0; C. for at least 2 hours. The powdered catalyst material has a specific surface area of &#x3e;300 m/g and an isoelectric point of from 4.0 to 7.0.

Powdered titanium oxide, method for the production thereof, and use thereof

A TiO-based catalyst precursor material in powder form includes TiOparticles with the formula TiO(OH)(x=0-1). The particles are coated with one or more auxiliary shaping agents and after coating and drying have a specific surface area of at least 150 m/g. The material has a content of 1) 50-99.5% by weight of the titanium-oxygen compound with the general formula TiO(OH), wherein x=0 to 1, or mixtures thereof, wherein the crystalline phases of the titanium-oxygen compound are in the anatase form, and 2) 0.5-50% by weight of an auxiliary shaping agent or mixtures thereof, which evaporates, sublimates and/or decomposes upon heating to temperatures below the transformation temperature from anatase to rutile, wherein the % by weight are relative to the total weight of the dried catalyst precursor material.

[object Object]

A TiO2-based catalyst material in particle form having a content of metal removes pollutants, in particular of nitrogen oxides from combustion gases.

Catalyst material and process for the production thereof

The invention concerns a process for the production of a storage-stable barium sulphate, the barium sulphate produced thereby and the use thereof as an additive.

Process for the production of a storage-stable barium sulphate having good dispersibility

The invention concerns a process for preparing an additive for polymers, the additive itself and the use of the additive for improving the surface properties of polymers.

Additive for polymers and process for preparation thereof

The invention relates to a method for producing barium sulphate having an organically modified surface, barium sulphate produced according to said method and to the use thereof.

Barium sulfate

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Oberhausen, Germany

Sonja Grothe