Basf Se Corporation

Basf Aktiengesellschaft

Stefan Altwasser

Frank Rosowski

Jürgen Zühlke

Ekkehard Schwab

Cornelia Katharina Dobner

Michael Krämer

Klaus Joachim Mueller-Engel

Stephan Andreas Schunk

Klaus Joachim Müller-Engel

Hagen Wilmer

Hans-Martin Allmann

Manuela Gaab

Harry Kaiser

Stefanie Herzog

Sabine Schuster

Andreas Raichle

Ulrich Cremer

Andrey Karpov

Annebart Engbert Wentink

Stefan Kotrel

Catharina Horstmann

Sabine Huber

Andrian Milanov

Bastian Ewald

Frank Huetten

Markus Ottenbacher

Nico F Fischer

Juergen Zuehlke

Marcelo Daniel Kaufman Rechulski

Yan Li

Christine Schmitt

Hao Chen

Virginie Lanver

Mike Hoffmann

Alexander Schaefer

Marcelo Daniel Kaufmann Rechulski

A method for producing a three-dimensional porous catalyst monolith of stacked catalyst fibers, comprising the following steps: a) Preparing a suspension paste in a liquid diluent of a reforming catalyst, and which suspension can furthermore comprise a binder material, all particles in the suspension having an average particle size in the range of from 0.5 to 500 &#x3bc;m, b) extruding the paste of step a) through one or more nozzles to form fibers, and depositing the extruded fibers to form a three-dimensional porous catalyst monolith precursor, c) drying the porous catalyst monolith precursor to remove the liquid diluent, d) calcining the porous catalyst monolith precursor to form the porous catalyst monolith.

Method for producing catalyst monoliths for the reforming of hydrocarbons

The invention relates to a catalyst system and process for preparing dimethyl ether from synthesis gas as well as the use of the catalyst system in this process.

Catalyst system and process for preparing dimethyl ether

The invention relates to a catalyst and catalyst layer and process for preparing dimethyl ether from synthesis gas or methanol as well as the use of the catalyst or catalyst layer in this process.

Catalyst and process for preparing dimethyl ether

The present invention relates to a catalytically active composition for the selective methanation of carbon monoxide in reformate streams comprising hydrogen and carbon dioxide, comprising at least one element selected from the group consisting of ruthenium, rhodium, nickel and cobalt as active component and rhenium as dopant on a support material. The catalyst according to the invention is preferably used for carrying out methanation reactions in a temperature range from 100 to 300&#xb0; C. for use in the production of hydrogen for fuel cell applications.

Rhenium-doped catalyst and a method for the selective methanation of carbon monoxide

The invention relates to a catalyst molded body for preparing maleic anhydride by gas-phase oxidation of a hydrocarbon having at least four carbon atoms using a catalytically active composition containing vanadium, phosphorus and oxygen. The shaped catalyst body has an essentially cylindrical body having a longitudinal axis. The cylindrical body has at least two parallel internal holes which are essentially parallel to the cylinder axis of the body and go right through the body. The catalyst molded body has a large outer surface area, a lower pressure loss and sufficient mechanical stability.

Catalyst and method for producing maleic anhydride

The present invention relates to a catalyst for the oxidation of o-xylene and/or naphthalene to phthalic anhydride, which has a plurality of catalyst zones which are arranged in series in the reaction tube and have been produced using an antimony trioxide which comprises a significant proportion of valentinite. The present invention further relates to a process for gas-phase oxidation, in which a gas stream comprising at least one hydrocarbon and molecular oxygen is passed through a catalyst produced using an antimony trioxide which comprises a significant proportion of valentinite.

Catalyst for the oxidation of o-xylene and/or naphthalene to phthalic anhydride

The invention relates to a catalyst molded body for preparing maleic anhydride by gas-phase oxidation of a hydrocarbon having at least four carbon atoms using a catalytically active composition contains vanadium, phosphorus and oxygen, where the shaped catalyst body has an essentially cylindrical body having a longitudinal axis, wherein the cylindrical body has at least two parallel internal holes which are essentially parallel to the cylinder axis of the body and go right through the body. The catalyst molded body has a large outer surface area, a lower pressure loss and sufficient mechanical stability.

The present invention relates to a catalyst for preparing carboxylic acids and/or carboxylic anhydrides, which has a plurality of catalyst zones arranged in series and has been produced using a vanadium antimonate having a maximum content of crystalline valentinite of 5% by weight. The present invention further relates to a process for gas-phase oxidation in which a gas stream comprising at least one hydrocarbon and molecular oxygen is passed through a catalyst which has a plurality of catalyst zones arranged in series and has been produced using a vanadium antimonate having a maximum content of crystalline valentinite of 5% by weight.

Catalyst for preparing carboxylic acids and/or carboxylic anhydrides

In a process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride, by passing a gas stream which comprises an aromatic hydrocarbon and molecular oxygen through a multitude of reaction tubes arranged in the gas phase oxidation reactor, each of which comprises a bed of at least one catalyst and the temperature of which can be controlled by means of a heat transfer medium, at least one control parameter is measured and correcting interventions for control of the control parameter are determined, the at least one control parameter comprising the phthalic anhydride yield and the correcting parameter used being the temperature of the heat carrier medium. Over at least 90% of the lifetime of the catalyst, the change in the correcting parameter is limited to a maximum of 0.5 K within a period of 30 days. In this way, the cumulated phthalic anhydride yield over the lifetime of the catalyst is maximized.

Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride

A process for preparing acrylic acid from methanol and acetic acid, in which, in a reaction zone A, the methanol is partially oxidized to formaldehyde in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and an acetic acid source are used to obtain a reaction gas input mixture B which comprises acetic acid and formaldehyde and has the acetic acid in excess over the formaldehyde, and the formaldehyde present in reaction gas input mixture B is aldol-condensed to acrylic acid under heterogeneous catalysis in a reaction zone B with acetic acid present in reaction gas input mixture B, and unconverted acetic acid still present alongside the acrylic acid target product in the product gas mixture B obtained is removed therefrom, and the acetic acid removed is recycled into the production of reaction gas input mixture B.

Process for preparing acrylic acid from methanol and acetic acid

The present invention relates to a multilayer catalyst for preparing phthalic anhydride which has a plurality of catalyst layers arranged in succession in the reaction tube, with the individual catalyst layers having alkali metal contents which decrease in the flow direction. The present invention further relates to a process for the oxidation of naphthalene or o-xylene/naphthalene mixtures over such a multilayer catalyst and the use of such multilayer catalysts for the oxidation of naphthalene or o-xylene/naphthalene mixtures to phthalic anhydride.

Multilayer catalyst for preparing phthalic anhydride and process for preparing phthalic anhydride

A process for preparing C-C-oxygenates from a reactant stream A which comprises essentially a C-C-alkane or a mixture of C-C-alkanes, by

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A process for preparing shaped catalyst bodies whose active composition is a multielement oxide, in which a finely divided precursor mixture with addition of graphite having a specific particle size is shaped to the desired geometry and then treated thermally.

Process for preparing shaped catalyst bodies whose active composition is a multielement oxide

A process for preparing acrylic acid from ethanol and formaldehyde, in which, in a reaction zone A, the ethanol is partially oxidized to acetic acid in a heterogeneously catalyzed gas phase reaction, the product gas mixture A obtained and a formaldehyde source are used to obtain a reaction gas input mixture B which comprises acetic acid and formaldehyde and has the acetic acid in excess over the formaldehyde, and the formaldehyde present in reaction gas input mixture B is aldol-condensed with acetic acid present in reaction gas input mixture B to acrylic acid under heterogeneous catalysis in a reaction zone B, and unconverted acetic acid still present along-side the acrylic acid target product in the product gas mixture B obtained is removed therefrom, and the acetic acid removed is recycled into the production of reaction gas input mixture B.

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Wachenheim, Germany

Stefan Altwasser