Basf Aktiengesellschaft

Basf Se Corporation

Otto Hofstadt

Klaus Harth

Michael Baier

Michael Hesse

Christian Walsdorff

Hermann Petersen

Otto Kumberger

Franz-Josef Weiss

Gerald Vorberg

Thomas Fetzer

Götz-Peter Schindler

Matthias Frauenkron

Erwin Thomas

Marco Bosch

Michael Jolyon Sprague

Ruprecht Meissner

Christopher William Rieker

Hermann Wistuba

Klaus Kartte

Raimund Felder

Bernhard Otto

Milan Kostur

Volker Schumacher

Falk Simon

Norbert Neth

Werner Biffar

Wolfgang J&uuml;rgen P&ouml;pel

Reinhard Koerner

Gert B&uuml;rger

Wolfgang Buchele

Wolfgang Jurgen Popel

Christophe Houssin

Catalysts comprising: a ground, spent (de)hydrogenation catalyst material present in an amount of 10 to 70% by weight based on the catalyst, the ground, spent catalyst material comprising iron oxide; and a fresh catalyst material present in an amount of 30 to 90% by weight based on the catalyst, the fresh catalyst material comprising iron oxide, wherein at least a portion of the iron oxide in the fresh catalyst material comprises a phase selected from the group consisting of hematite, potassium ferrite, and mixtures thereof are described along with processes for preparing and using the same.

Catalysts for dehydrogenation and/or hydrogenation of hydrocarbons, processes for preparing the same, and uses therefor

The invention relates to a process for preparing a catalyst support, in which zirconium dioxide powder is mixed with a binder, if desired a pore former, if desired an acid, water and, if desired, further additives to give a kneadable composition and the composition is homogenized, shaped to produce shaped bodies, dried and calcined, wherein the binder is a monomeric, oligomeric or polymeric organosilicon compound. Suitable binders are monomeric, oligomeric or polymeric silanes, alkoxysilanes, aryloxysilanes, acryloxysilanes, oximinosilanes, halosilanes, aminoxysilanes, aminosilanes, amidosilanes, silazanes or silicones. The invention also provides the catalyst support which has been prepared in this way, a catalyst comprising the support and its use as dehydrogenation catalyst.

Zr02-base catalyst carrier and method for the production thereof

Process for producing a shaped body comprising a microporous material and at least one silicon-containing binder, which comprises the steps

Shaped body containing a microporous material and at least one silicon-containing binder, method for the production thereof and its use as a catalyst, particularly in a method for producing triethylenediamine (TEDA).

A copper-containing catalyst of the composition of N O contains a compound of the formula M Al O , where M is Cu or a mixture of Cu and Zn and/or Mg and x is from 0.8 to 1.5. The novel catalyst is used in a process for the catalytic decomposition of pure N O or N O contained in gas mixtures, at elevated temperatures.

High-temperature stabile catalysts for decomposing N2O

A process for the preparation of a catalyst comprising iron oxide, potassium oxide, a magnesium compound and a cerium compound, wherein the catalyst has one or more Fe/K phases K O.Fe O 1:n, where n is a natural number from 1 to 11, and a process for the dehydrogenation of ethylbenzene to styrene.

Catalyst for dehydrogenating ethyl benzene to produce styrene

This invention relates to an improved process of producing hydrogen and carbon dioxide by the catalytical process of methanol reformation. The improvement resides in the use of catalysts made up substantially of metal oxides selected from the group consisting of Al O , TiO , ZrO and ZnO, and which catalyst is in the form of a substantially cylindrical tablet having a maximum diameter in the range from 0.8 to 2.0 mm and a maximum height in the range of from 0.5 to 2.0 mm.

Catalytical process of methanol reformation

Shaped catalysts for heterogeneously catalyzed reactions are in the form of hollow cylinders or annular tablets whose end faces are rounded both to the outer edge and to the edge of the central hole, i.e. have no right-angled edges.

Shaped catalysts

In a process for steam-reforming methanol, in which methanol and water are reacted at a catalyst with formation of hydrogen, the catalyst used can be prepared by

Catalyst for steam-reforming methanol

Method of producing selective-dehydrogenation catalysts, and catalysts

Noble metal catalyst, in particular platinum catalysts, which are applied on carriers and have become poisoned by metals as a result of being used for many years in the preparation of hydroxyl-ammonium salts by catalytic reduction of nitric oxide with hydrogen in an aqueous mineral acid are regenerated by a process in which the metallic impurities are dissolved using nitric acid or aqua regia, the solution is neutralized, the troublesome metals are precipitated from the neutralized solution by means of a selective precipitating reagent, and the purified platinum solution is reused for the preparation of the catalyst. Organic complexing agents which form insoluble or sparingly soluble complexes with the metallic impurities are preferably used as precipitating reagents.

Regeneration of inactive and poisoned platinum catalysts

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Speyer, Germany

Otto Hofstadt