Basf Se Corporation

Basf Aktiengesellschaft

Other

Velocys Corp.

Frank Rosowski

Jürgen Zühlke

Cornelia Katharina Dobner

Sebastian Storck

Klaus Joachim Mueller-Engel

Samuel Neto

Stefan Altwasser

Frieder Borgmeier

Andreas Raichle

Ulrich Cremer

Andrey Karpov

Hagen Wilmer

Hans-Martin Allmann

Catharina Horstmann

Andreas Tenten

Klaus Joachim Müller-Engel

Jochen Petzoldt

Goetz-Peter Schindler

Torsten Mäurer

Josef Macht

Ulrich Hammon

Terry Joseph Mazanec

Torsten Mattke

Gerhard Olbert

Laura J Silva

Holger Borchert

Gerhard Cox

Gerhard Theis

Thomas Mackewitz

Matthias Kummer

Hartmut Hibst

Peter Zehner

Thomas Heidemann

Otto Machhammer

Klaus Harth

Markus Schubert

Yuzhuo Li

Alexander Kraus

Michael Krämer

Thomas Lautensack

Radwan Abdallah

Silke Berndt

Ina Grisstede

Götz-Peter Schindler

Thomas Hill

Michael Baier

Hans Martan

Soumitra R Deshmukh

Georg Seeber

Gerd Linden

Tobias Rosendahl

Michael Seufert

Sabine Huber

Stefan Bauer

Klaus Joachim M&uuml;ller-Engel

Mario Brands

Annebart Engbert Wentink

Hans-Josef Wolf

Peter M Lorz

Cathrin Alexandra Welker-Nieuwoudt

Bastian Ewald

Reinhard Körner

Thomas Ruehl

Nico F Fischer

Frank Müller

Juergen Zuehlke

Robert Schloegl

Herbert Vogel

Gerhard Hefele

Hans-Günther Lintz

Hao Chen

Yan Li

Christine Schmitt

Sabine Schmidt

Wolfgang Rummel

Hans-Guenther Lintz

Alfons Drochner

Elisabet Bacells Cabre

Nina Blickhan

Thomas Rühl

Nadine Duerr

Tim Jekewitz

Nadine Menning

Tina Petzold

Mark Eichelbaum

Annettte Trunschke

Dieter Köffer

Soumitra Desmukh

Michael Maier

Jörg Habicht

Michael KRÄMER

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

A process for preparing (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein over a multimetal oxide composition which comprises the elements Mo, V and W and is obtained by a hydrothermal preparation route, and the multimetal oxide composition obtainable by this preparation route.

Process for heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein to (meth)acrylic acid

An eggshell catalyst consisting of a hollow cylindrical support body of length 2 to 10 mm, external diameter 4 to 10 mm and wall thickness 1 to 4 mm, and an eggshell, applied to the outer surface of the support body, of catalytically active oxide material of the general formula I,MoVWCuXXO&#x2003;&#x2003;(I)in which the variables are each defined as follows:

Eggshell catalyst consisting of a hollow cylindrical support body and a catalytically active oxide material applied to the outer surface of the support body

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.

A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry[BiWO][MoZZFeZZZO],in which a finely divided oxide BiWOwith the particle size dand, formed from element sources, a finely divided intimate mixture of stoichiometry MoZZFeZZZwith the particle size dare mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d)&#xb7;(d)&#xb7;(a)&#x2267;820. A shaped catalyst body obtained by the process. A catalyst obtained by grinding the shaped catalyst body. A process for heterogeneously catalyzing the partial gas phase oxidation of an alkane, alkanol, alkanal and/or an alkenal of 3 to 6 carbon atoms using the catalyst.

Process for producing geometric shaped catalyst bodies

The present invention relates to a process for gas-phase oxidation, in which a gaseous stream comprising an aromatic hydrocarbon and molecular oxygen is passed through two or more catalyst zones. Furthermore, the present invention relates to a catalyst system for gas-phase reaction using a preliminary zone.

Catalyst system and method for gas phase oxidation using an upstream layer

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

This invention relates to a process, comprising reacting ethylene and oxygen or a source of oxygen in the presence of a catalyst in a reactor to form a product comprising ethylene oxide, wherein the catalyst contains silver or silver compound and a support and the catalyst is in the form of particulate solids having a mean particle diameter from 1 to 1000 &#x3bc;m and wherein the molar ratio of oxygen to ethylene is from 1:4 to 10:1.

Process for making ethylene oxide

A chemical mechanical polishing (CMP) composition comprising a specific heteropolyacid Abstract A chemical-mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture thereof, (B) a heteropolyacid of the formula HaXbPsMOyVzOc wherein X=any cation other than H 8&#x3c;y&#x3c;18 8&#x3c;z&#x3c;14 56&#x3c;c&#x3c;105 a+b=2c&#x2212;6y&#x2212;5(3+z) b&#x3e;0 and a&#x3e;0 (formula I) or a salt thereof, and, (C) an aqueous medium.

Chemical mechanical polishing (CMP) composition comprising a specific heteropolyacid

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

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 producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry[BiWO][MoZZFeZZZO],in which a finely divided oxide BiWOwith the particle size dand, formed from element sources, a finely divided intimate mixture of stoichiometry MoZZFeZZZwith the particle size dare mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d)&#xb7;(d)&#xb7;(a)&#x2267;820.

A catalyst for the gas phase oxidation of organic hydrocarbons comprises a multielement oxide which comprises at least one transition meal such as vanadium, wherein the catalyst has a charge transport activation energy Eat a temperature of 375 to 425&#xb0; C. of less than 0 kJ/mol. The catalyst serves for preparation of maleic anhydride.

Gas phase oxidation catalyst with low charge transport activation energy

Mo-, Bi- and Fe-comprising multimetal oxide compositions of the general stoichiometry I,MoBiCoFeKSiO&#x2003;&#x2003;(I),

Mo-, Bi- and Fe-comprising multimetal oxide compositions

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Mannheim, Germany

Frank Rosowski