Patents by Inventor Andreas Raichle

Andreas Raichle 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).

  • Patent number: 9422218
    Abstract: A process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed, in which a heterogeneously catalyzed partial gas phase oxidation of an organic compound had been performed beforehand in a preceding fixed catalyst bed comprising Mo-comprising multielement oxide active compositions to form a steam-comprising product gas mixture, in which, before the recharge, solid deposit which had been deposited on the tube inner walls and comprises molybdenum oxide and/or molybdenum oxide hydrate is brushed away with the aid of a brush.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 23, 2016
    Assignee: BASF SE
    Inventors: Volker Schliephake, Klaus Bott, Rolf-Dieter Becher, Klaus Joachim Mueller-Engel, Jochen Petzoldt, Ulrich Cremer, Andreas Raichle
  • Patent number: 9308515
    Abstract: The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: April 12, 2016
    Assignee: BASF SE
    Inventors: Gerrit Waters, Johannes Buettner, Andreas Raichle, Markus Hiller, Peter Renze, Michael Herrich, Helmut Rueger, Burkhard Hantel, Arndt Hofmann, Ruediger Fritz, Kathrin Richter, Holgar Braunsberg, Lothar Bruntsch
  • Patent number: 9302237
    Abstract: The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. In the apparatus of the invention, the diversion of an internal circulatory flow in the reactor is effected by means of a diversion pan which is arranged underneath a heat exchanger.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 5, 2016
    Assignee: BASF SE
    Inventors: Oliver Bey, Christian Kunkelmann, Roland Bauer, Andreas Raichle, Hartmut Riechers, Peter Zehner
  • Patent number: 9295971
    Abstract: The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. Here, the cooling medium surrounds the tubes of the heat exchanger of the apparatus of the invention whereas the reaction takes place in the tubes.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: March 29, 2016
    Assignee: BASF SE
    Inventors: Oliver Bey, Andreas Raichle, Hartmut Riechers, Roland Mueller, Wolfgang Mackenroth, Peter Zehner
  • Publication number: 20150274629
    Abstract: A process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed, in which a heterogeneously catalyzed partial gas phase oxidation of an organic compound had been performed beforehand in a preceding fixed catalyst bed comprising Mo-comprising multielement oxide active compositions to form a steam-comprising product gas mixture, in which, before the recharge, solid deposit which had been deposited on the tube inner walls and comprises molybdenum oxide and/or molybdenum oxide hydrate is brushed away with the aid of a brush.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Applicant: BASF SE
    Inventors: Volker SCHLIEPHAKE, Klaus BOTT, Rolf-Dieter BECHER, Klaus Joachim MUELLER-ENGEL, Jochen PETZOLDT, Ulrich CREMER, Andreas RAICHLE
  • Patent number: 9126171
    Abstract: A process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed, in which a heterogeneously catalyzed partial gas phase oxidation of an organic compound had been performed beforehand in a preceding fixed catalyst bed comprising Mo-comprising multielement oxide active compositions to form a steam-comprising product gas mixture, in which, before the recharge, solid deposit which had been deposited on the tube inner walls and comprises molybdenum oxide and/or molybdenum oxide hydrate is brushed away with the aid of a brush.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 8, 2015
    Assignee: BASF SE
    Inventors: Volker Schliephake, Klaus Bott, Rolf-Dieter Becher, Klaus Joachim Mueller-Engel, Jochen Petzoldt, Ulrich Cremer, Andreas Raichle
  • Patent number: 9079840
    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [Bi1WbOx]a[Mo12Z1cZ2dFeeZ3fZ4gZ5hOy]1, in which a finely divided oxide Bi1WbOx with the particle size d50A1 and, formed from element sources, a finely divided intimate mixture of stoichiometry Mo12Z1cZ2dFeeZ3fZ4gZ5h with the particle size d90A2 are mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d50A1)0.7·(d90A2)1.5·(a)?1?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.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: July 14, 2015
    Assignee: BASF SE
    Inventors: Andreas Raichle, Catharina Horstmann, Frank Rosowski, Klaus Joachim Mueller-Engel, Holger Borchert, Gerhard Cox, Ulrich Cremer
  • Patent number: 8981155
    Abstract: A process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, forming a fluid, amine-comprising reaction mixture in a reactor, wherein chromatographic analysis of the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: March 17, 2015
    Assignee: BASF SE
    Inventors: Stefanie Haase, Dusko Kadijevic, Anne-Kathrin Merten, Michael Zoellinger, Andreas Raichle, Alexander Schocker, Sandra Mühlbeyer, Olaf Wiedenhoff, Joana Coelho Tsou
  • Patent number: 8895783
    Abstract: The present invention relates to a continuous process for preparing at least one aromatic amine by hydrogenation of at least one nitroaromatic by means of hydrogen, where a liquid phase comprising at least the aromatic amine and a gas phase comprising at least hydrogen are present, in the presence of a catalyst suspended in the liquid phase at a temperature of from 50 to 250° C. and a pressure of from 5 to 50 bar, wherein the pressure in the reactor is kept essentially constant by continuous adaptation of the amount of hydrogen fed to the reactor, the total amount of hydrogen fed to the reactor is monitored and the introduction of the at least one nitroaromatic is interrupted if the hydrogen uptake in the reactor is not at least 50 mol % of the amount of hydrogen required for stoichiometric reaction of the at least one nitroaromatic to form the at least one aromatic amine.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: November 25, 2014
    Assignee: BASF SE
    Inventors: Andreas Raichle, Stefanie Haase, Holgar Braunsberg, Johannes Buettner, Ulrich Penzel, Samuel Neto
  • Publication number: 20140341783
    Abstract: The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).
    Type: Application
    Filed: July 14, 2014
    Publication date: November 20, 2014
    Applicant: BASF SE
    Inventors: Gerrit WATERS, Johannes BUETTNER, Andreas RAICHLE, Markus HILLER, Peter RENZE, Michael HERRICH, Helmut RUEGER, Burkhard HANTEL, Arndt HOFMANN, Ruediger FRITZ, Kathrin RICHTER, Holgar BRAUNSBERG, Lothar BRUNTSCH
  • Patent number: 8865614
    Abstract: A process for producing a ringlike oxidic shaped body by mechanically compacting a pulverulent aggregate introduced into the fill chamber of a die, wherein the outer face of the resulting compact corresponds to that of a frustocone.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 21, 2014
    Assignee: BASF SE
    Inventors: Knut Eger, Jens Uwe Faust, Holger Borchert, Ralf Streibert, Klaus Joachim Mueller-Engel, Andreas Raichle
  • Publication number: 20140296558
    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [Bi1WbOx]a[Mo12Z1cZ2dFeeZ3fZ4gZ5hOy]1, in which a finely divided oxide Bi1WbOx with the particle size d50A1 and, formed from element sources, a finely divided intimate mixture of stoichiometry Mo12Z1cZ2dFeeZ3fZ4gZ5h with the particle size d90A2 are mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d50A1)0.7·(d90A2)1.5·(a)?1?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.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Applicant: BASF SE
    Inventors: Andreas RAICHLE, Catharina Horstmann, Frank Rosowski, Klaus Joachim Mueller-Engel, Holger Borchert, Gerhard Cox, Ulrich Cremer
  • Patent number: 8835688
    Abstract: The invention relates to a process for preparing aromatic amines by hydrogenation of corresponding nitroaromatics by means of hydrogen, and also an apparatus suitable for this purpose. In particular, the invention relates to a process for preparing toluenediamine (TDA) by hydrogenation of dinitrotoluene (DNT).
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 16, 2014
    Assignee: BASF SE
    Inventors: Gerrit Waters, Johannes Buettner, Andreas Raichle, Markus Hiller, Peter Renze, Michael Herrich, Helmut Rueger, Burkhard Hantel, Arndt Hofmann, Ruediger Fritz, Kathrin Richter, Holgar Braunsberg, Lothar Bruntsch
  • Patent number: 8822371
    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [Bi1WbOx]a[Mo12Z1cZ2dFeeZ3fZ4gZ5nOy]1, in which a finely divided oxide Bi1WbOx with the particle size d50A1 and, formed from element sources, a finely divided intimate mixture of stoichiometry Mo12Z1cZ2dFeeZ3fZ4gZ5h with the particle size d50A2 are mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d50A1)0.7·(d90A1)1.5·(a)?1?820.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: September 2, 2014
    Assignee: BASF SE
    Inventors: Andreas Raichle, Catharina Horstmann, Frank Rosowski, Klaus Joachim Müller-Engel, Holger Borchert, Gerhard Cox, Ulrich Cremer
  • Publication number: 20140200369
    Abstract: The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. In the apparatus of the invention, the diversion of an internal circulatory flow in the reactor is effected by means of a diversion pan which is arranged underneath a heat exchanger.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 17, 2014
    Applicant: BASF SE
    Inventors: Oliver BEY, Christian KUNKELMANN, Roland BAUER, Andreas RAICHLE, Hartmut RIECHERS, Peter ZEHNER
  • Publication number: 20140200370
    Abstract: The present invention relates to an apparatus of the loop Venturi reactor type for the continuous reaction of liquids with gases, in particular for hydrogenations, oxidations or acetylations, e.g. for the preparation of toluenediamine by hydrogenation of dinitrotoluene, and a process for the continuous reaction of liquid reactants with gaseous reactants in the apparatus. Here, the cooling medium surrounds the tubes of the heat exchanger of the apparatus of the invention whereas the reaction takes place in the tubes.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 17, 2014
    Applicant: BASF SE
    Inventors: Oliver BEY, Andreas RAICHLE, Hartmut RIECHERS, Roland MUELLER, Wolfgang MACKENROTH, Peter ZEHNER
  • Publication number: 20140039213
    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [Bi1WbOx]a[Mo12Z1cZ2dFeeZ3fZ4gZ5hOy]1, in which a finely divided oxide Bi1WbOx with the particle size d50A1 and, formed from element sources, a finely divided intimate mixture of stoichiometry Mo12Z1cZ2dFeeZ3fZ4gZ5h with the particle size d90A2 are mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d50A1)0.7·(d90A2)1.5·(a)?1?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.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Applicant: BASF SE
    Inventors: Andreas RAICHLE, Catharina Horstmann, Frank Rosowski, Klaus Joachim Mueller-Engel, Holger Borchert, Gerhard Cox, Ulrich Cremer
  • Patent number: 8637712
    Abstract: Precipitations of nitrohydroxyaromatic salts out of the nitrated crude products obtained in the nitration of aromatic compounds after alkaline scrubbing, for example mononitrotoluenes, are prevented by contacting the nitrated crude products with an acidic ion exchanger. The nitrated crude products are preferably selected from a feedstream to a distillation column, a bottoms circulation stream of a distillation column and a feedstream to a vaporizer.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: January 28, 2014
    Assignee: BASF SE
    Inventors: Holger Allardt, Andreas Raichle, Reiner Reetz, Johannes Büttner, Michael Zöllinger, Stefanie Haase, Rüdiger Fritz
  • Patent number: 8609899
    Abstract: The invention relates to a process for the continuous preparation of toluenediamine by liquid-phase hydrogenation of dinitrotoluene by means of hydrogen in the presence of a suspended, nickel-comprising catalyst in a reactor with a product isolation unit downstream of the reactor to give a product output from the reactor comprising a liquid phase comprising toluenediamine and dinitrotoluene, in which the nickel-comprising catalyst is suspended, wherein the concentration of dinitrotoluene in the liquid phase of the product output from the reactor in the region between the reactor and the downstream product isolation unit is set to a value in the range from 1 to 200 ppm by weight, based on the total weight of the liquid phase of the product output from the reactor.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: December 17, 2013
    Assignee: BASF SE
    Inventors: Andreas Raichle, Joana Coelho Tsou, Samuel Neto, Ulrich Penzel, Steffen Oehlenschlaeger, Michael Zoellinger, Holgar Braunsberg, Stefanie Haase, Johannes Buettner
  • Patent number: 8546295
    Abstract: 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.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: October 1, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Raichle, Frank Rosowski, Sabine Huber, Ulrich Cremer, Stefan Altwasser, Klaus Joachim Mueller-Engel