Patents by Inventor Joachim Muller

Joachim Muller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Membrane polymer compositions

Publication number: 20040191894

Abstract: The invention relates to a terpolymer of tetrafluoroethylene (TFE) monomer, polyvinylidene fluoride (PVDF) monomer and hexafluoropropylene (HFP) monomer for forming an ultrafiltration or microfiltration membrane, method of forming said membranes, and to the ultrafiltration or microfiltration membranes themselves. The invention also relates to a method of forming a polymeric ultrafiltration or microfiltration membrane including preparing a leachant resistant membrane dope which incorporates a leachable pore forming agent, casting a membrane from the dope and leaching the pore forming agent from the membrane. The invention also relates to a method of preparing a polymeric ultrafiltration or microfiltration membrane of improved structure including the step of adding a nucleating agent to the membrane dope before casting.

Type: Application

Filed: December 16, 2003

Publication date: September 30, 2004

Inventors: Heinz-Joachim Muller, Daniel Mullette
Heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid

Publication number: 20040192963

Abstract: In a process for partially oxidizing acrolein to acrylic acid in the gas phase under heterogeneous catalysis, the starting reaction gas mixture is oxidized at an acrolein loading of ≦145 and ≧70 l (STP) of acrolein/l of fixed catalyst bed·h over a fixed catalyst bed which is accommodated in two successive reaction zones A, B, the highest temperature of the reaction gas mixture within reaction zone A being above the highest temperature of the reaction gas mixture within reaction zone B.

Type: Application

Filed: March 23, 2004

Publication date: September 30, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Martin Dieterle, Jochen Petzoldt, Klaus Joachim Muller-Engel, Heiko Arnold
Heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid

Publication number: 20040191953

Abstract: In a process for partially oxidizing propene to acrylic acid in the gas phase under heterogeneous catalysis, a starting reaction gas mixture comprising propene and oxygen and having a specific composition is oxidized in a first reaction stage over a first fixed catalyst bed having a volume-specific activity which is constant or increases in the flow direction and the acrolein-containing product gas mixture of the first reaction stage is subsequently oxidized in a second reaction stage over a second fixed catalyst bed having a volume-specific activity increasing in the flow direction, and the shaped catalyst bodies of both fixed catalyst beds are annular and each have a specific multimetal oxide composition.

Type: Application

Filed: June 20, 2003

Publication date: September 30, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Martin Dieterle, Jochen Petzoldt, Klaus Joachim Muller-Engel, Hans Martan
Method for producing partial oxidation products and/or partial ammoxidation products of at least one olefinic hydrocarbon

Publication number: 20040181083

Abstract: Partial oxidation products and/or ammoxidation products of an olefinic hydrocarbon A′ are prepared by a process in which said olefinic hydrocarbon is produced during normal operation by partial dehydrogenation and/or oxydehydrogenation of hydrocarbon A and fed in from another source during partial or complete nonoperation of the dehydrogenation and/or oxydehydrogenation.

Type: Application

Filed: December 29, 2003

Publication date: September 16, 2004

Inventors: Theo Proll, Otto Machhammer, Gotz-Peter Schindler, Klaus Joachim Muller-Engel
Method for producing methacrolein from isobutane

Publication number: 20040171887

Abstract: A process prepares methacrolein from isobutane by subjecting isobutane to a partial catalytic dehydrogenation in the gas phase and using the isobutenic product gas mixture to charge an oxidation zone in which the isobutene is oxidized to methacrolein in the gas phase with heterogeneous catalysis using molecular oxygen accompanied by molecular nitrogen as the oxygen source.

Type: Application

Filed: December 29, 2003

Publication date: September 2, 2004

Inventors: Silke Berndt, Klaus Joachim Muller-Engel, Gotz-Peter Schindler, Frank Rosowski, Jochen Petzoldt
Method for the production of acrolein or acrylic acid or the mixture thereof from propane

Patent number: 6781017

Abstract: In a process for the preparation of acrolein or acrylic acid or a mixture thereof from propane, the propane is subjected, in a first reaction stage, to a partial dehydrogenation under heterogeneous catalysis to give propene, of the components contained in the product gas mixture formed in the first reaction stage other than propene and propane at least a portion of the molecular hydrogen present is then separated off from said mixture and the product gas mixture is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propylene oxidation, molecular nitrogen being present for diluting the reaction gas mixture during the propylene oxidation.

Type: Grant

Filed: December 13, 2002

Date of Patent: August 24, 2004

Assignee: BASF Aktiengesellschaft

Inventors: Otto Machhammer, Goetz-Peter Schindler, Andreas Tenten, Klaus Harth, Peter Zehner, Klaus Joachim Müller-Engel, Frank Rosowski, Frieder Borgmeier
Method for the production of a purified melt of at least one monomer

Publication number: 20040147763

Abstract: The invention relates to a method for the production of a purified melt of a monomer melt obtained by condensation, absorption or extraction in a crystallizer, wherein the inlet to the crystallizer is subjected to a mechanical solid/liquid separation operation.

Type: Application

Filed: November 6, 2003

Publication date: July 29, 2004

Inventors: Ulrich Hammon, Bernd Eck, Dieter Baumann, Jorg Heilek, Klaus Joachim Muller-Engel
Preparation of a multimetal oxide composition

Publication number: 20040147393

Abstract: A process for preparing a multimetal oxide composition comprising one of the elements Mo and V and at least one of the elements Te and Sb, in which part solutions which each contain partial amounts of the required starting compounds of the elemental constituents present in the multimetal oxide composition in dissolved form are prepared from the starting compounds, these part solution streams are combined and mixed and the resulting mix solution stream is broken up into fine droplets, dried by means of a hot gas and the solid obtained is treated thermally at elevated temperature.

Type: Application

Filed: August 26, 2003

Publication date: July 29, 2004

Applicant: BASF Akiengesellschaft

Inventors: Hartmut Hibst, Frieder Borgmeier, Klaus Joachim Muller-Engel
Method of purifying a raw melt of at least one monomer by crystallization

Publication number: 20040133015

Abstract: The invention relates to a method for purifying a raw melt of at least one monomer by crystallization, wherein suspension crystallization is initially used and the resulting remaining melt or the suspension crystals that have been molten once again and separated are subjected to a mechanical separation operation before undergoing subsequent purification by crystallization.

Type: Application

Filed: November 6, 2003

Publication date: July 8, 2004

Inventors: Ulrich Hammon, Bernd Eck, Dieter Baumann, Jorg Heilek, Klaus Joachim Muller-Engel
Preparation of at least one organic compound by heterogeneously catalyzed partial gas-phase oxidation

Publication number: 20040116730

Abstract: Organic compounds are prepared by heterogeneously catalyzed partial gas-phase oxidation of precursor compounds by a process in which a portion of the reaction gas starting mixture is brought from a low initial pressure to a higher final pressure by means of a radial compressor.

Type: Application

Filed: September 23, 2003

Publication date: June 17, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Volker Schliephake, Ulrich Hammon, Ernst Lang, Carl-Ludwig Kruger, Jurgen Schroder, Klaus Joachim Muller-Engel
Methods for identifying tumors that are responsive to treatment with anti-ErbB2 antibodies

Publication number: 20040106161

Abstract: Tumors are identified as responsive to treatment with anti-HER2 antibodies by detecting the presence of a HER2/HER3 and/or HER2/HER1 protein complex or for HER2 phosphorylation in a sample of tumor cells. Patients suffering from a tumor comprising HER/2/HER1 and/or HER2/HER3 heterodimers and/or HER2 phosphorylation are treated with anti-HER2 antibodies, such as rhuMAb 2C4.

Type: Application

Filed: July 14, 2003

Publication date: June 3, 2004

Inventors: Birgit Bossenmaier, Hans-Joachim Muller, Hans Koll, Mark X. Sliwkowski, Stephen Michael Kelsey
Method for carrying out the catalytic gas phase oxidation of propene to form acrylic acid

Patent number: 6740779

Abstract: In a process for the two-stage catalytic gas-phase oxidation of propene to acrylic acid, the reaction gas starting mixture is passed, in a tube-bundle reactor, with a propene loading of ≧160 l (S.T.P.) of propene/l·h, first over a fixed catalyst bed 1 present in two successive temperature zones A, B and then over a fixed catalyst bed 2 which is housed either in one further temperature zone C or in two further temperature zones D, E, the temperature of the zone A being kept at a lower temperature than the zone B and the temperature of the zone D at a lower temperature than the zone E.

Type: Grant

Filed: April 22, 2002

Date of Patent: May 25, 2004

Assignee: BASF Aktiengesellschaft

Inventors: Andreas Tenten, Hartmut Hibst, Otto Machhammer, Claus Hechler, Klaus Joachim Müller-Engel, Signe Unverricht
Preparation of a multimetal oxide material

Publication number: 20040097368

Abstract: A process for preparing a multimetal oxide material which contains the elements Mo, V and Te and/or Sb and at least one of the elements Nb, Ti, W, Ta and Ce and if desired promoters and has a specific X-ray diffraction pattern, in which process the last process step comprises washing with acidic liquids. In addition, a multimetal oxide material obtainable in such a way is used as a catalyst for heterogeneously catalyzed gas-phase partial oxidations and/or ammoxidation of hydrocarbons.

Type: Application

Filed: August 26, 2003

Publication date: May 20, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Frieder Borgmeier, Klaus Joachim Muller-Engel, Hartmut Hibst, Martin Dieterle
Preparation of acrylic acid

Publication number: 20040073063

Abstract: In a process for preparing acrylic acid, an acrylic acid-containing product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid, after direct cooling with a quench liquid, is fractionally condensed in a separating column provided with internals, rising into itself with sidestream takeoff of crude acrylic acid, and the acrylic acid oligomers which form are dissociated and the resulting dissociation gas is subjected to a countercurrent rectification before it is recycled.

Type: Application

Filed: June 20, 2003

Publication date: April 15, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Joachim Thiel, Ulrich Hammon, Dieter Baumann, Jorg Heilek, Juergen Schroder, Klaus Joachim Muller-Engel
Preparation of at least one partial oxidation and/or ammoxidation product of propylene

Publication number: 20040063988

Abstract: In a process for preparing at least one partial oxidation and/or ammoxidation product of propylene, the propylene is obtained from crude propane by dehydrogenating and subjected in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total C4-hydrocarbon content of ≦3% by volume to a heterogeneously catalyzed gas phase partial oxidation and/or partial gas phase ammoxidation.

Type: Application

Filed: June 20, 2003

Publication date: April 1, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Otto Machhammer, Klaus Joachim Muller-Engel, Hans Martan
Preparation of at least one partial oxidation and/or ammoxidation product of propylene

Publication number: 20040063989

Abstract: Process for preparing at least one partial oxidation and/or ammoxidation product of propylene, in which the propylene is produced from crude propane by dehydrogenation and is subjected to a heterogeneously catalyzed gas-phase partial oxidation and/or partial gas-phase ammoxidation in the presence of unreacted propane as constituent of a gas mixture 2 containing <1% by volume of 1-butene.

Type: Application

Filed: June 20, 2003

Publication date: April 1, 2004

Applicant: BASF Aktiengesellschaft

Inventors: Claus Hechler, Gotz-Peter Schindler, Jochen Petzoldt, Christoph Adami, Otto Machhammer, Klaus Joachim Muller-Engel, Hans Martan
Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibres

Publication number: 20040049073

Abstract: The invention relates to a method for cleaning crude terephthalic acid by means of catalytic, hydrogenating aftertreatment using a catalyst material containing at least one hydrogenation metal applied to a carbon carrier consisting of carbon fibres. The invention also relates to a catalyst consisting of the at least one catalyst material containing the at least one hydrogenation metal applied to the carbon fibres, the BET surface of the carbon carrier being <500 m2/g, and a monolithic catalyst consisting of said at least one catalyst material containing the at least one hydrogenation material applied to the carbon fibres, and at least one support element or skeleton element which differs from the catalyst material and is connected to the same, said element mechanically supporting the catalyst material and maintaining the same in a monolithic form.

Type: Application

Filed: July 16, 2003

Publication date: March 11, 2004

Inventors: Matthias Haake, Ekkehard Schwab, Michael Koch, Hans-Joachim Muller, Manfred Stroezel, Hermann Petersen, Peter Schreyer
Quenching of a hot gas mixture comprising (meth) acrylic acid

Publication number: 20040046270

Abstract: In a process for quenching a hot gas mixture comprising (meth)acrylic acid by direct cooling by means of a cooling liquid in a spray cooler, the cooling liquid is atomized in the spray cooler by means of an impingement atomizer.

Type: Application

Filed: June 18, 2003

Publication date: March 11, 2004

Inventors: Volker Diehl, Klaus Joachim Muller-Engel, Gerhard Nestler
Modified membranes

Publication number: 20040035782

Abstract: A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The reactivity modifying agent is preferably a linear polymeric anhydride, such as poly(alkyl vinyl ether/maleic anhydride). The surface activity modifications include modification of the hydrophilicity/hydrophobicity balance of the membrane, or hydrolysis followed by reaction with a polyamine to form a crosslinked polyamide layer. Such modified membranes have use as reverse osmosis membranes.

Type: Application

Filed: May 12, 2003

Publication date: February 26, 2004

Inventor: Heinz-Joachim Muller
Method for producing a multi metal oxide catalyst, method for producing unsaturated aldehydes and/or carboxylic acids and band calcination device

Publication number: 20040034249

Abstract: A catalyst suitable for the gas-phase oxidation of organic compounds to &agr;,&bgr;-unsaturated aldehydes and/or carboxylic acids and having an active phase comprising a multimetal oxide material is prepared by a process in which a particulate catalyst precursor which contains oxides and/or compounds of the elements other than oxygen which constitute the multimetal oxide material, which compounds can be converted into oxides, is prepared and said catalyst precursor is converted by calcination into a catalytically active form, wherein a stream of the particulate catalyst precursor is passed at substantially constant speed through at least one calcination zone at constant temperature for calcination.

Type: Application

Filed: March 14, 2003

Publication date: February 19, 2004

Inventors: Heiko Arnold, Signe Unverricht, Raimund Felder, Klaus Harth, Klaus Joachim Muller-Engel

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