Patents by Inventor Roman Dostalek

Roman Dostalek 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: 9315479
    Abstract: Process for preparing pyrrolidine of the formula I by reacting 1,4-butanediol (BDO) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 160 to 230° C., using ammonia in a molar ratio to BDO used of from 5 to 50 and in the presence of 1.0 to 4.5% by weight of hydrogen, based on the amount of BDO used.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: April 19, 2016
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Roman Dostalek, Jörg Pastre, Aik Meam Tan
  • Patent number: 8981093
    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst has been found, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 25 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: March 17, 2015
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Nina Challand, Bernd Stein, Michael Jödecke
  • Patent number: 8927712
    Abstract: Process for the preparation of a mono-N-alkylpiperazine of the formula I in which R1 is C1- to C5-alkyl or 2-(2-hydroxyethoxy)ethyl, by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula H2N—R1 (III) in the presence of hydrogen and a catalyst molding, where the reaction is carried out in the liquid phase at an absolute pressure in the range from 150 to 250 bar and the amination is carried out by means of a catalyst molding, the precursor of which can be prepared according to a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide is provided, (ii) pulverulent metallic copper and/or copper flakes and optionally graphite is added to the oxidic material, (iii) the mixture resulting from step ii is shaped to give a molding, where the oxidic material is obtainable by simultaneous or successive precipitation of the component copper oxide, of the component aluminum oxide and of the component lanthanum oxide and subsequent dry
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 6, 2015
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Bernd Stein
  • Patent number: 8884015
    Abstract: Process for the preparation of a mono-N-alkylpiperazine of the formula I in which R1 is C1- to C5-alkyl or 2-(2-hydroxyethoxy)ethyl, by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula H2N—R1 (III) in the presence of hydrogen and a supported, metal-containing catalyst, where the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and, in the range from 0.2 to 5.0% by weight, oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 95 to 145 bar.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 11, 2014
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Bernd Stein
  • Publication number: 20140018547
    Abstract: Process for preparing pyrrolidine of the formula I by reacting 1,4-butanediol (BDO) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 160 to 230° C., using ammonia in a molar ratio to BDO used of from 5 to 50 and in the presence of 1.0 to 4.5% by weight of hydrogen, based on the amount of BDO used.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Roman Dostalek, Jörg Pastre, Aik Meam Tan
  • Publication number: 20130331573
    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst has been found, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 25 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 12, 2013
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Nina Challand, Bernd Stein, Michael Jödecke
  • Publication number: 20130331574
    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia (NH3) in the presence of hydrogen and a supported, metal-containing catalyst, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises 20 to 85% by weight of oxygen-containing compounds of zirconium, calculated as ZrO2, 1 to 30% by weight of oxygen-containing compounds of copper, calculated as CuO, 14 to 70% by weight of oxygen-containing compounds of nickel, calculated as NiO, and 0 to 5% by weight of oxygen-containing compounds of molybdenum, calculated as MoO3, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 20 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 12, 2013
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Nina Challand, Bernd Stein, Michael Jodecke
  • Publication number: 20130324731
    Abstract: Process for the preparation of a mono-N-alkylpiperazine of the formula I in which R1 is C1- to C5-alkyl or 2-(2-hydroxyethoxy)ethyl, by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula H2N—R1 (III) in the presence of hydrogen and a catalyst molding, where the reaction is carried out in the liquid phase at an absolute pressure in the range from 150 to 250 bar and the amination is carried out by means of a catalyst molding, the precursor of which can be prepared according to a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide is provided, (ii) pulverulent metallic copper and/or copper flakes and optionally graphite is added to the oxidic material, (iii) the mixture resulting from step ii is shaped to give a molding, where the oxidic material is obtainable by simultaneous or successive precipitation of the component copper oxide, of the component aluminum oxide and of the component lanthanum oxide and subsequent dr
    Type: Application
    Filed: May 31, 2013
    Publication date: December 5, 2013
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Bernd Stein
  • Publication number: 20130324732
    Abstract: Process for the preparation of a mono-N-alkylpiperazine of the formula I in which R1 is C1- to C5-alkyl or 2-(2-hydroxyethoxy)ethyl, by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula H2N—R1 (III) in the presence of hydrogen and a supported, metal-containing catalyst, where the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and, in the range from 0.2 to 5.0% by weight, oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 95 to 145 bar.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 5, 2013
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Bernd Stein
  • Patent number: 8436169
    Abstract: Process for preparing 1,4-bishydroxyethylpiperazine (BHEPIP) of the formula I wherein diethanolamine (DEOA) of the formula II is reacted in the liquid phase in a reactor at a temperature in the range from 130 to 300° C. in the presence of a copper-comprising, chromium-free heterogeneous catalyst.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 7, 2013
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Nina Challand, Johann-Peter Melder, Udo Rheude, Roman Dostalek
  • Patent number: 8383866
    Abstract: The present invention relates to a process for preparing diols by hydrogenating a mixture comprising carboxylic acid, carboxylic anhydrides and/or carboxylic esters/lactones by means of a cobalt-comprising catalyst, wherein alkali metal and/or alkaline earth metal ions are added to the hydrogenation feed, excluding alkali metal and/or alkaline earth metal ions of mineral acids.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: February 26, 2013
    Assignee: BASF SE
    Inventors: Rolf Pinkos, Axel Paul, Rolf-Hartmuth Fischer, Roman Dostalek
  • Publication number: 20120108816
    Abstract: Process for preparing 1,4-bishydroxyethylpiperazine (BHEPIP) of the formula I wherein diethanolamine (DEOA) of the formula II is reacted in the liquid phase in a reactor at a temperature in the range from 130 to 300° C. in the presence of a copper-comprising, chromium-free heterogeneous catalyst.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Applicant: BASF SE
    Inventors: Christof Wilhelm Wigbers, Nina Challand, Johann-Peter Melder, Udo Rheude, Roman Dostalek
  • Publication number: 20110124926
    Abstract: The present invention relates to a process for preparing diols by hydrogenating a mixture comprising carboxylic acid, carboxylic anhydrides and/or carboxylic esters/lactones by means of a cobalt-comprising catalyst, wherein alkali metal and/or alkaline earth metal ions are added to the hydrogenation feed, excluding alkali metal and/or alkaline earth metal ions of mineral acids.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: BASF SE
    Inventors: Rolf PINKOS, Axel Paul, Rolf-Hartmuth Fischer, Roman Dostalek
  • Patent number: 7560594
    Abstract: Method of producing triethanolamine where a phosphane or a compound which liberates a phosphane is added to the triethanolamine.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: July 14, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Haese, Johann-Peter Melder, Roman Dostalek, Manfred Julius
  • Patent number: 7550632
    Abstract: Methods for improving color properties of triethanolamine, and triethanolamine compositions treated thereby, are disclosed, wherein the methods comprise: (a) providing a composition comprising triethanolamine; and (b) contacting the composition with an acid component and a basic component; wherein the acid component comprises an acid selected from the group consisting of phosphorous acid, hypophosphorous acid and mixtures thereof; and wherein the basic component comprises a compound selected from the group consisting of alkali metal hydroxides, alkaline earth metal hydroxides, ammonium hydroxides according to general formula (I), and mixtures thereof: [R1R2R3(2-hydroxyethyl)ammonium] hydroxide??(I) wherein R1, R2 and R3 each independently represents a C1-30 alkyl or a C2-10 hydroxyalkyl; with the proviso that where the basic component comprises an alkali metal hydroxide, the molar ratio of acid component: basic component is 1:0.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: June 23, 2009
    Assignee: BASF SE
    Inventors: Frank Haese, Johann-Peter Melder, Roman Dostalek, Manfred Julius
  • Publication number: 20090131722
    Abstract: Methods for improving color properties of triethanolamine, and triethanolamine compositions treated thereby, are disclosed, wherein the methods comprise: (a) providing a composition comprising triethanolamine; and (b) contacting the composition with an acid component and a basic component; wherein the acid component comprises an acid selected from the group consisting of phosphorous acid, hypophosphorous acid and mixtures thereof; and wherein the basic component comprises a compound selected from the group consisting of alkali metal hydroxides, alkaline earth metal hydroxides, ammonium hydroxides according to general formula (I), and mixtures thereof: [R1R2R3(2-hydroxyethyl)ammonium]hydroxide??(I) wherein R1, R2 and R3 each independently represents a C1-30 alkyl or a C2-10 hydroxyalkyl; with the proviso that where the basic component comprises an alkali metal hydroxide, the molar ratio of acid component:basic component is 1:0.
    Type: Application
    Filed: August 4, 2005
    Publication date: May 21, 2009
    Inventors: Frank Haese, Johan-Peter Melder, Roman Dostalek, Manfred Julius
  • Publication number: 20070270615
    Abstract: Method of producing triethanolamine where a phosphane or a compound which liberates a phosphane is added to the triethanolamine.
    Type: Application
    Filed: August 10, 2005
    Publication date: November 22, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Frank Haese, Johann-Peter Melder, Roman Dostalek, Manfred Julius
  • Patent number: 6093677
    Abstract: A process for dehydrogenating 1,4-butanediol to .gamma.-butyrolactone in the gas phase in the presence of a copper-containing catalyst, wherein the catalyst contains 4-40% by weight of copper and 0-5% by weight of Na.sub.2 O, based on the total weight of the catalyst, on a carrier consisting of 80-100% by weight of SiO.sub.2 and 0-20% by weight of CaO.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: July 25, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Jochen Mercker, Frank-Friedrich Pape, Joachim Simon, Andreas Henne, Michael Hesse, Ulrich Kohler, Roman Dostalek, Cristina Freire Erdbrugger, Detlef Kratz
  • Patent number: 5955620
    Abstract: A process for dehydrogenating 1,4-butanediol to .gamma.-butyrolactone in the gas phase in the presence of a copper-containing catalyst, wherein the catalyst contains 4-40% by weight of copper and 0-5% by weight of Na.sub.2 O, based on the total weight of the catalyst, on a carrier consisting of 80-100% by weight of SiO.sub.2 and 0-20% by weight of CaO.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: September 21, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Jochen Mercker, Frank-Friedrich Pape, Joachim Simon, Andreas Henne, Michael Hesse, Ulrich Kohler, Roman Dostalek, Cristina Freire Erdbrugger, Detlef Kratz
  • Patent number: 5847131
    Abstract: N-Substituted cyclic amines are prepared by reacting diols with primary amines over a copper-containing catalyst which is obtainable by impregnation of an inert support with an aqueous solution of an ammine complex of a readily thermally decomposable copper compound and subsequent drying and calcination and contains from 5 to 50% by weight of copper, calculated as CuO.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: December 8, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Simon, Roman Dostalek, Heinz Lingk, Rainer Becker, Andreas Henne, Rolf Lebkucher, Cristina Freire Erdbrugger, Michael Hesse, Detlef Kratz