Patents by Inventor Ulrich Hammon

Ulrich Hammon 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).

  • PROCESS FOR SEPARATING ACRYLIC ACID PRESENT AS A MAIN CONSTITUENT AND GLYOXAL PRESENT AS A BY-PRODUCT IN A PRODUCT GAS MIXTURE OF A PARTIAL HETEROGENEOUSLY CATALYZED GAS PHASE OXIDATION OF A C3 PRECURSOR COMPOUND OF ACRYLIC ACID
    Publication number: 20100022734
    Abstract: A process for separating acrylic acid present as a main product and glyoxal present as a by-product in a product gas mixture of a partial gas phase oxidation of a C3 precursor compound, in which a liquid phase P is obtained, which consists of acrylic acid to an extent of at least 70% of its weight and, based on the molar amount of acrylic acid present therein, comprises at least 200 molar ppm of glyoxal, in which the glyoxal is separated from the acrylic acid in the liquid phase P by crystallization.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 28, 2010
    Applicant: BASF SE
    Inventors: Till Blum, Peter Zurowski, Steffen Rissel, Sylke Haremza, Thorsten Friese, Ulrich Jäger, Volker Schliephake, Klaus Joachim Müller-Engel, Ulrich Hammon, Jörg Heilek, Imke Britta Müller
  • Process for controlling a hydraulic wash column
    Patent number: 7637965
    Abstract: A process for operating a hydraulic wash column, in which the position of the buildup front in the wash column is positioned by means of the flow rates of control liquor conducted into the wash column and/or by means of the flow rate of the suspension conducted into the wash column, and the flow rate determination is with the aid of the pressure difference which exists in the column between points in the suspension zone disposed upstream of the buildup front and points in the zone projecting from the buildup front up to the end of the crystal bed.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: December 29, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Joerg Heilek, Klaus Joachim Mueller-Engel, Ulrich Hammon, Thomas Walter
  • PROCESS FOR STORING A MONOMER PHASE WHICH IS LIQUID UNDER THE CONDITIONS OF STORAGE
    Publication number: 20090221780
    Abstract: A process for storing a monomer phase which is liquid under the conditions of storage and comprises methacrylic monomers to an extent of ?95% by weight and has been obtained by condensation out of a gaseous phase or by melting a crystalline phase, in a storage vessel, in which polymer of the monomer present in dissolved form in the liquid monomer phase is removed therefrom on the route from its generation into the storage vessel, and also a process for withdrawing liquid monomer phase from the storage vessel in which polymer of the monomer present in dissolved form in the monomer phase is likewise removed.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 3, 2009
    Applicant: BASF SE
    Inventors: Joerg Heilek, Ulrich Hammon, Volker Schliephake, Klaus Joachim Muller-Engel, Till Blum
  • Process for preparing acrylic acid
    Patent number: 7566804
    Abstract: A process for preparing acrylic acid, in which an acrylic acid-comprising product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid is fractionally condensed in a condensation column provided with internals ascending into itself with side draw removal of crude acrylic acid and with liquid phase draw removal of acrylic acid-comprising acid water, and acrylic acid present in acid water is taken up into an extractant and then removed from the extractant and recycled into the condensation column, or taken up in aqueous metal hydroxide, or sent to further purification of the crude acrylic acid.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: July 28, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Armin Diefenbacher, Ulrich Hammon, Volker Schliephake, Georg Sieder
  • Method for performing the purifying separation of crystals out their suspension in a mother liquor
    Patent number: 7540884
    Abstract: A process for purifying removal of crystals from their suspension in mother liquor by means of a washing column having forced transport in which the process chamber is encased by a metal wall which, on its side facing away from the process chamber, is heated at least along the length of the pure melt zone.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: June 2, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Hammon, Dieter Baumann, Joerg Heilek, Klaus Joachim Mueller-Engel, Bernd Eck
  • Thermal separating process
    Patent number: 7537201
    Abstract: A separating column containing a sequence of mass transfer trays that are supported by at least one covered double-T support and/or covered U-shaped support.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: May 26, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Diehl, Ulrich Jaeger, Ulrich Hammon, Juergen Schroeder, Steffen Rissel
  • Method for the rectifying separation of fluids containing (meth)acryl monomers
    Patent number: 7520964
    Abstract: A process for rectificatively separating at least one (meth)acrylic monomer-containing fluid by feeding the fluid into a rectification column containing at least one sieve tray without a runoff segment, wherein an elementary cell is obtained from a number of centers of passages in a sieve tray, and the cell shifts regularly and repeatedly along its edges, the lengths of two shifting vectors being the lengths of the edges of the cell along which the shifting is effected; an arrangement of the centers is such that the positions of an ideal center and a real center are separated by ?1% of half of the sum of the lengths of the two shifting vectors; and an arrangement of the passages is such that the sum of non-overlapping surface areas of an ideal passage with a real passage and vice versa is ?1% of the surface area of the ideal passage.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: April 21, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Hammon, Joachim Thiel, Volker Schliephake, Juergen Schroeder
  • Process for heterogeneously catalyzed gas phase partial oxidation of at least one organic starting compound
    Patent number: 7518015
    Abstract: A process for heterogeneously catalyzed gas phase partial oxidation of an organic starting compound over a fixed catalyst bed freshly installed into a reaction chamber, in which the reduction in the quality of the fixed catalyst bed is restored with increasing operating time by replacing a portion of the fixed catalyst bed by a replacement fixed catalyst bed part whose volume-specific activity is lower than the volume-specific activity of the replaced fixed catalyst bed part in its freshly installed state.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: April 14, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Cremer, Ulrike Wegerle, Gerhard Laqua, Ulrich Hammon, Klaus Joachim Mueller-Engel
  • PROCESS FOR OPERATING A CONTINUOUS REMOVAL OF A TARGET PRODUCT X IN THE FORM OF FINE CRYSTALS OF THE TARGET PRODUCT X
    Publication number: 20090076232
    Abstract: A process for operating a continuous removal of a target product X in the form of fine crystals of a liquid phase P comprising the target product X and constituents other than the target product X by cooling suspension crystallization in the secondary chamber of an indirect heat exchanger to which liquid phase P flows continuously with simultaneous continuous flow through the primary chamber of the indirect heat exchanger with a coolant, and continuous withdrawal of a crystal suspension S having a degree of crystallization Y from the secondary chamber in two operating states I and II, wherein the coolant temperature is lower, the mass flow of liquid phase P is greater and the molar proportion of the constituents other than the target product X in the liquid phase P in operating state II is greater than in operating state I.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 19, 2009
    Applicant: BASF SE
    Inventors: Jorg HEILEK, Ulrich Hammon, Klaus Joachim Muller-Engel
  • PROCESS FOR OPERATING A CONTINUOUS REMOVAL OF A TARGET PRODUCT X IN THE FORM OF FINE CRYSTALS
    Publication number: 20090076286
    Abstract: A process for continuously removing a target product X in the form of fine crystals from a liquid phase P comprising the target product X and constituents other than the target product X by cooling suspension crystallization in an indirect heat transferee, in which the crystal suspension formed is conducted out of the heat transferer first into a mixed buffer tank and, from there, fed to an apparatus for separating the crystal suspension into crystals and liquid phase, and wherein external measures dissipade the oversaturation of the crystal suspension fed to the buffer vessel with target product X.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 19, 2009
    Applicant: BASF SE
    Inventors: Jorg HEILEK, Ulrich Hammon, Klaus Joachim Muller-Engel, Volker Schliephake, Dieter Baumann
  • PROCESS FOR CONTINUOUSLY REMOVING A TARGET PRODUCT X IN THE FORM OF FINE CRYSTALS
    Publication number: 20090076284
    Abstract: A process for continuously removing a target product X in the form of fine crystals from a liquid phase P comprising the target product X and constituents other than the target product X by cooling suspension crystallization in the secondary chamber, into which the liquid phase P flows continuously, of an indirect heat exchanger with simultaneous continuous flow of a coolant through the primary chamber of the indirect heat exchanger and continuous withdrawal of a crystal suspension S having a degree of crystallization Y from the secondary chamber, in which the degree of crystallization Y is adjusted on the basis of a heat balance conducted continuously with the aid of a process computer.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Applicant: BASF SE
    Inventors: Joerg Heilek, Peter Schlemmer, Ulrich Hammon, Klaus Joachim Mueller-Engel
  • PROCESS FOR PURIFYING REMOVAL OF ACRYLIC ACID, METHACRYLIC ACID, N-VINYLPYRROLIDONE OR P-XYLENE CRYSTALS FROM THEIR SUSPENSION IN MOTHER LIQUOR
    Publication number: 20090018347
    Abstract: A process for purifying removal of acrylic acid, methacrylic acid, N-vinylpyrrolidone or p-xylene crystals from their suspension in mother liquor by means of a wash column with forced transport, whose shell of the process chamber is a metal wall, the wash column additionally being enveloped by a thermal insulation material having a water vapor barrier and a specific heat flow of >0.1 W/m2 and <10 W/m2 flowing into the process chamber through the metal wall of the wash column.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Applicant: BASF SE
    Inventors: Jorg HEILEK, Ulrich Hammon, Klaus Joachim Muller-Engel, Dieter Baumann
  • PROCESS FOR STARTING-UP A HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF ACROLEIN TO ACRYLIC ACID OR OF METHACROLEIN TO METHACRYLIC ACID
    Publication number: 20080269521
    Abstract: A process for starting-up a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or of methacrolein to methacrylic acid over a fixed catalyst bed disposed in a tube bundle reactor cooled by a heat exchange medium, wherein the temperature of the heat exchange medium is ?290° C. and the temperature of that reactor plate surface which faces the reaction gas entry mixture and the temperature of the reaction gas entry mixture itself are ?285° C.
    Type: Application
    Filed: April 22, 2008
    Publication date: October 30, 2008
    Applicant: BASF SE
    Inventors: Ulrich HAMMON, Thorsten Friese, Jochen Petzoldt, Klaus Joachim Muller-Engel, Ulrich Cremer, Andreas Raichle
  • PROCESS FOR PREPARING AT LEAST ONE ORGANIC TARGET COMPOUND BY HETEROGENEOUSLY CATALYZED GAS PHASE PARTIAL OXIDATION
    Publication number: 20080260605
    Abstract: A process for preparing an organic target compound by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of the target compound from the mixture of the product gas streams in a workup line, wherein the catalysts charge of one of the oxidation lines comprises a portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out for longer than over the portions of catalyst of the catalyst charge of the other oxidation reactor line.
    Type: Application
    Filed: June 26, 2008
    Publication date: October 23, 2008
    Applicant: BASF SE
    Inventors: Martin Dieterle, Klaus Joachim Muller-Engel, Jochen Petzoldt, Ulrich Hammon
  • Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation
    Patent number: 7439389
    Abstract: A process for preparing an organic target compound by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of the target compound from the mixture of the product gas streams in a workup line, wherein the catalyst charge of one of the oxidation lines comprises a portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out for longer than over the portions of catalyst of the catalyst charge of the other oxidation reactor line.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: October 21, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Dieterle, Klaus Joachim Mueller-Engel, Jochen Petzoldt, Ulrich Hammon
  • PROCESS FOR TRANSPORTING IN THE TANK OF A TANK TRUCK OR TANKER SHIP A LIQUID MONOMER PHASE WITHDRAWN FROM A STORAGE VESSEL
    Publication number: 20080234446
    Abstract: A process for transporting a liquid monomer phase which has been withdrawn from a storage vessel and comprises methacrylic monomers to an extent of ?90% by weight, in a tank truck or in a tanker ship, in which the liquid monomer phase is subjected to a separating operation on the route from the storage vessel into the tank of a tank truck or of a tanker ship in order to separate polymer of the monomer present in dissolved form in the liquid monomer phase.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Applicant: BASF SE
    Inventors: Jorg Heilek, Ulrich Hammon, Volker Schliephake, Klaus Joachim Muller-Engel, Till Blum
  • PROCESS FOR PREPARING A CATALYST CONSISTING OF A SUPPORT BODY AND A CATALYTICALLY ACTIVE COMPOSITION APPLIED ON THE SURFACE OF THE SUPPORT BODY
    Publication number: 20080214863
    Abstract: A process for preparing a coated catalyst in which a finely divided mixture of a multielement oxide comprising the elements Mo and V and a molybdenum oxide or a molybdenum oxide former is applied to the surface of a support body as an active composition.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 4, 2008
    Applicant: BASF SE
    Inventors: Ulrich CREMER, Andreas Raichle, Frank Rosowski, Ulrich Hammon, Klaus Joachim Mueller-Engel
  • PROCESS FOR PREPARING ACRYLIC ACID
    Publication number: 20080183014
    Abstract: A process for preparing acrylic acid, in which an acrylic acid-comprising product gas mixture obtained by catalytic gas phase partial oxidation of a C3 precursor of acrylic acid is fractionally condensed in a condensation column provided with internals ascending into itself with side draw removal of crude acrylic acid and with liquid phase draw removal of acrylic acid-comprising acid water, and acrylic acid present in acid water is taken up into an extractant and then removed from the extractant and recycled into the condensation column, or taken up in aqueous metal hydroxide, or sent to further purification of the crude acrylic acid.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 31, 2008
    Applicant: BASF SE
    Inventors: Armin DIEFENBACHER, Ulrich Hammon, Volker Schliephake, Georg Sieder
  • Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers
    Patent number: 7393436
    Abstract: A thermal separating process for removing a stream containing enriched (meth)acrylic monomers from a mixture containing (meth)acrylic monomers, in which the liquid phases retained in the separating space at high temperature and high (meth)acrylic monomer content are minimized.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: July 1, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Eck, Ulrich Hammon, Klaus Joachim Mueller-Engel, Juergen Schroeder, Joachim Thiel, Hans Martan
  • PROCESS FOR MIXING A LIQUID OR MIXTURE OF A LIQUID AND A FINE SOLID PRESENT IN AN ESSENTIALLY SELF-CONTAINING VESSEL
    Publication number: 20080073444
    Abstract: A process for mixing a liquid or mixture of a liquid and a fine solid present in a vessel, in which the vessel is supplied with the same liquid or the same mixture as a motive jet of a jet nozzle which is present in the vessel and has a motive jet and a momentum exchange chamber, the suction region between motive nozzle and momentum exchange chamber being provided with a sheath which has a suction orifice below the central jet leading from the motive nozzle into the momentum exchange chamber.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 27, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Michael BLECHSCHMITT, Ulrich Hammon, Friedrich-George Martin, Klaus Mueller-Engel, Peter Zehner