Sachtleben Chemie Gmbh

Metallgesellschaft Aktiengesellschaft

Studiengesellschaft Kohle Mbh

Sachtleben Chomie Gmbh

Lurgi Ag Abtellung Patente, A-vrp

Venator Germany Gmbh

Institut Für Verbundwerkstoffe Gmbh

Jochen Winkler

Thomas Rentschler

Bernd Proft

Michael Wedler

Wolf-Dieter Griebler

Bernd Hirthe

Sonja Grothe

Gerhard Fink

Franz Meyers

Peter Weiser

Elke Hirschberg

Frank Haupert

Regina Optehostert

Wolf-Rudiger Karl

Udo Blumenthal

Klaus Pipplies

Klaus Hauschild

J&uuml;gen Kastner

Fritz Muller

Kirsten Fohr

Djamschid Amirzadeh

Wolf-Ruediger Karl

Birgit Bittmann

Nicole Knör

A process is described for the production of a catalyst preparation, in which the catalyst containing at least one inorganic compound which is solid under standard conditions is comminuted by means of a dispersion unit into particles having a maximum average particle size dof 2 &#x3bc;m, preferably a maximum of 1 &#x3bc;m, implemented in accordance with DIN 66141 and DIN 66144, and is distributed at a concentration of from 1 to 50 wt. % (relative to the finished catalyst preparation) in a liquid.

Process for the production of a catalyst preparation and use of the catalyst preparation

The invention relates to methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.

Catalyst system consisting of a carrier and of a co-catalyst

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

A processing aid for further processing in synthetic polymers comprising finely divided, inorganic pigments and/or fillers. Such processing aids can homogeneously be dispersed with little effort when the same are embedded in an organic substance.

Preparation agents

The use of surface-coated rutile modification TiO pigments having a primary particle grain size d of 0.1 to 1.0 &mgr;m as an anticorrosive white pigment, with firstly magnesium phosphate and secondly aluminum oxides and/or aluminum hydroxides being precipitated onto the TiO pigments, is described.

Use of surface-coated rutile modification TiO2 pigments as an anticorrosive white pigment

Anticorrosive white pigments useful for inhibiting corrosion include surface-coated TiO base bodies, preferably in the rutile modification, having Mn (PO ) and one or more of the substances chosen from aluminum oxides, aluminum hydroxides, aluminum phosphates, aluminum hydrogen phosphates, aluminum dihydrogen phosphates and aluminum polyphosphates are precipitated on to the TiO base bodies. Mn (PO ) may be replaced completely or partially by Zn (PO ) . Phosphates and/or oxides of cerium may be additionally deposited singly, or several of them may be deposited, on to the TiO base bodies.

Anti-corrosive white pigments and method for producing the same

Shaped parts made of synthetic organic polymers have a good transparency in the range of visible light, good fire-proofing properties and a good remission from infrared radiation if they contain 1 to 45% by volume transparent zinc sulphide pigment with a mean particle size d in the range from 1 to 14 &mgr;m.

Zinc sulphide pigment

A coating composition is described which is applied to a substrate and contains ultra-fine TiO.sub.2. This coating composition contains from 0.5 to 30.0% by volume of colored pigment and/or carbon black, from 55.0 to 98.5% by volume binder solids and from 0.3 to 15% by volume ultra-fine TiO.sub.2 having a particle size of 5 to 40 nm. It has a high total reflectance and intensive depth of color. Furthermore, a method of making the coating composition is described. Finally, the use of the coating composition as a finishing lacquer for motor vehicles, industrial coating, printing ink, coil coating, package coating, plastic coating and decorative paint, and also as paint, is described.

Coating composition applied to a substrate and containing ultra-fine

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Rheurdt, Germany

Jochen Winkler