Patents by Inventor Rolf Pinkos

Rolf Pinkos 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).

  • Method for catalytic hydrogenation on rhenium-containing active carbon carrier catalysts
    Patent number: 6906228
    Abstract: In a process for preparing alcohols by catalytic hydrogenation of carbonyl compounds over a catalyst comprising rhenium on activated carbon, the catalyst used comprises rhenium (calculated as metal) in a weight ratio to the activated carbon of from 0.0001 to 0.5, platinum (calculated as metal) in a weight ratio to the activated carbon of from 0.0001 to 0.5 and, if appropriate, at least one further metal selected from among Zn, Cu, Ag, Au, Ni, Fe, Ru, Mn, Cr, Mo, W and V in a weight ratio to the activated carbon of from 0 to 0.25, and the activated carbon has been nonoxidatively pretreated It is also possible to prepare ethers and lactones if the hydrogen pressure is not more than 25 bar. In this case, the activated carbon in the catalyst may also have been nonoxidatively pretreated.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: June 14, 2005
    Assignee: BASF AG
    Inventors: Rolf Hartmuth Fischer, Rolf Pinkos, Stephan Andreas Schunk, Joachim Wulff-Döring, Frank Stein, Thomas Nöbel, Sylvia Huber
  • Hydrogenation of benzenepolycarboxylic acids or derivatives thereof using a catalyst containing macropores
    Patent number: 6888021
    Abstract: A process for producing plasticizers in which a phthalic acid having the CAS Nos. 111381-89-6, 111381-90-9, 111381-91-0, 68515-44-6, 68515-45-7 and 3648-20-7, the formed plasticizers and a method of increasing the plasticity of a plastic product.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: May 3, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Melanie Brunner, Arnd Böttcher, Boris Breitscheidel, Klaus Halbritter, Jochem Henkelmann, Lucien Thil, Rolf Pinkos
  • Continuous preparation of alkenyl compounds
    Patent number: 6794546
    Abstract: A continuous process for the preparation of O—, S— and N-alkenyl compounds by reaction of the corresponding OH, SH or NH compound with an acetylene in the liquid phase in the presence of basic alkali or alkaline earth metal compounds at from 40 to 300° C. and from 0.11 to 5 MPa absolute comprises continuously feeding the corresponding OH, SH or NH compound and the acetylene and operating at a conversion of the corresponding OH, SH or NH compound of ≧90%.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: September 21, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Pinkos, Rudolf Erich Lorenz
  • Method for producing pyrrolidones
    Publication number: 20040158078
    Abstract: In a process for preparing pyrrolidone, which may be N-substituted, substrates selected from among C4-dicarboxylic acids and their derivatives are hydrogenated in the gas phase under anhydrous conditions with or without addition of ammonia or primary amines and using a Cr-free catalyst which comprises from 5 to 95% by weight of CuO, preferably from 30 to 70% by weight of CuO, and from 5 to 95% by weight of Al2O3, preferably from 30 to 70% by weight of Al2O3, and from 0 to 60% by weight, preferably from 5 to 40% by weight, of ZnO.
    Type: Application
    Filed: December 19, 2003
    Publication date: August 12, 2004
    Inventors: Rolf-Hartmuth Fischer, Rolf Pinkos, Markus Rosch, Frank Stein
  • Method for the production of alcohols on rhenium-containing activated charcoal supported catalysts
    Patent number: 6765118
    Abstract: In a process for the preparation of alcohols by catalytic hydrogenation of carbonyl compounds, the catalyst used is 0.01 to 50% by weight of rhenium and 0 to 20% by weight, in each case based on the total weight of the catalyst, of at least one further metal chosen from Zn, Cu, Ag, Au, Ni, Fe, Cr, V on oxidatively pretreated activated carbon as support.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: July 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf-Hartmuth Fischer, Rolf Pinkos, Stephan Andreas Schunk, Joachim Wulff-Döring
  • Storage and transportation of N-vinyl-epsilon-caprolactam
    Patent number: 6743912
    Abstract: A method of storing and transporting N-vinyl-&egr;-caprolactam is provided wherein the N-vinyl-&egr;-caprolactam is kept in the liquid phase.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: June 1, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnd Böttcher, Rolf Pinkos, Rudolf Erich Lorenz
  • Method for the production of tetrahydrofuran
    Patent number: 6730800
    Abstract: Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or their derivatives using a catalyst comprising <80% by weight, preferably <70% by weight, in particular from 10 to 65% by weight, of CuO and >20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310° C., preferably from 240 to 280° C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalyst x hour.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: May 4, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf-Hartmuth Fischer, Frank Stein, Rolf Pinkos, Michael Hesse, Michael Jolyon Sprague, Markus Rösch, Holger Borchert, Stephan Schlitter, Ralf-Thomas Rahn, Alexander Weck
  • METHOD FOR THE PRODUCTION OF TETRAHYDROFURAN
    Publication number: 20040039214
    Abstract: Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or their derivatives using a catalyst comprising <80% by weight, preferably <70% by weight, in particular from 10 to 65% by weight, of CuO and >20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310° C., preferably from 240 to 280° C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalyst×hour.
    Type: Application
    Filed: June 4, 2003
    Publication date: February 26, 2004
    Inventors: Rolf-Hartmuth Fischer, Frank Stein, Rolf Pinkos, Michael Hesse, Michael Jolyon Sprague, Markus Rosch, Holger Borchert, Stephan Schlitter, Ralf-Thomas Rahn, Alexander Weck
  • Method for the production of N-alkenyl-amides
    Patent number: 6673920
    Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst diols of the general formula (I) where X is branched or unbranched alkylene selected from the group consisting of where R1 to R6 are independently hydrogen or C1- to C4-alkyl; or branched or unbranched cyclic alkylene of 3 to 14 carbon atoms including 3 to 12 ring carbon atoms, their monoalkenyl ethers, their dialkenyl ethers or mixtures thereof.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: January 6, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Preiss, Arnd Böttcher, Rolf Pinkos, Rudolf Erich Lorenz
  • Method for producing N-alkenyl amides
    Patent number: 6624303
    Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst compounds of the general formulae (Ia) and/or (Ib) R1O—(CH2CH2CH2CH2O)n—H  (Ia): R1O—(CH2CH2CH2CH2O)n—R2,  (Ib): where n is 1, 2 or 3 and R1 and R2 are independently C1- to C6-alkyl or C2- to C6-alkenyl, or together a butenyl unit.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: September 23, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnd Böttcher, Rolf Pinkos, Thomas Preiss, Rudolf Erich Lorenz
  • Purification of N-vinyl-&egr;-caprolactam
    Patent number: 6596862
    Abstract: A process for purifying N-vinyl-&egr;-caprolactam comprises converting the N-vinyl-&egr;-caprolactam which is to be purified and has a purity of at least 95% by weight into a melt, partially crystallizing the melt and separating the crystals from the mother liquor.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 22, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnd Böttcher, Rolf Pinkos, Rudolf Erich Lorenz, Heike Becker
  • Stabilized N-alkenyllactam
    Patent number: 6583281
    Abstract: The invention provides an N-alkenyllactam having at least a 6-membered lactam ring, stabilized by phenothiazine and/or derivatives thereof, and a process for the stabilization of N-alkenyllactams.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 24, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Arnd Böttcher, Rolf Pinkos, Rudolf Erich Lorenz, Hansjörg Nickel, Jihong He
  • Method for catalytic hydrogenation on rhenium-containing active carbon carrier catalysts
    Publication number: 20030114719
    Abstract: In a process for preparing alcohols by catalytic hydrogenation of carbonyl compounds over a catalyst comprising rhenium on activated carbon, the catalyst used comprises rhenium (calculated as metal) in a weight ratio to the activated carbon of from 0.0001 to 0.5, platinum (calculated as metal) in a weight ratio to the activated carbon of from 0.0001 to 0.5 and, if appropriate, at least one further metal selected from among Zn, Cu, Ag, Au, Ni, Fe, Ru, Mn, Cr, Mo, W and V in a weight ratio to the activated carbon of from 0 to 0.25, and the activated carbon has been nonoxidatively pretreated It is also possible to prepare ethers and lactones if the hydrogen pressure is not more than 25 bar. In this case, the activated carbon in the catalyst may also have been nonoxidatively pretreated.
    Type: Application
    Filed: October 29, 2002
    Publication date: June 19, 2003
    Inventors: Rolf Hartmuth Fischer, Rolf Pinkos, Stephan Andreas Schunk, Joachim Wulff-Doring, Frank Stein, Thomas Nobel, Sylvia Huber
  • Method for producing alkenyl ethers
    Publication number: 20030114715
    Abstract: Alkenyl ethers are prepared by reacting the corresponding alcohols or phenols with acetylenes in the liquid phase in the presence of basic alkali metal compounds and a cocatalyst comprising compounds of the formula (Ia) and/or (Ib)
    Type: Application
    Filed: October 3, 2002
    Publication date: June 19, 2003
    Inventors: Arnd Boettcher, Rolf Pinkos, Rudolf Erich Lorenz
  • Continuous preparation of alkenyl compounds
    Publication number: 20030105354
    Abstract: A continuous processs for the preparation of O—, S— and N-alkenyl compounds by reaction of the corresponding OH, SH or NH compound with an acetylene in the liquid phase in the presence of basic alkali or alkaline earth metal compounds at from 40 to 300° C. and from 0.11 to 5 MPa absolute comprises continuously feeding the corresponding OH, SH or NH compound and the acetylene and operating at a conversion of the corresponding OH, SH or NH compound of ≧90%.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 5, 2003
    Inventors: Rolf Pinkos, Rudolf Erich Lorenz
  • Method for the production of alcohols on rhenium-containing activated charcoal supported catalysts
    Publication number: 20030050516
    Abstract: In a process for the preparation of alcohols by catalytic hydrogenation of carbonyl compounds, the catalyst used is 0.01 to 50% by weight of rhenium and 0 to 20% by weight, in each case based on the total weight of the catalyst, of at least one further metal chosen from Zn, Cu, Ag, Au, Ni, Fe, Cr, V on oxidatively pretreated activated carbon as support.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 13, 2003
    Inventors: Rolf-Hartmuth Fischer, Rolf Pinkos, Stephan Andreas Schunk, Joachim Wulff-Doring
  • Method for the production of n-alkenyl amides
    Publication number: 20030036659
    Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst diols of the general formula (I) 1
    Type: Application
    Filed: June 19, 2002
    Publication date: February 20, 2003
    Inventors: Thomas Preiss, Arnd Bottcher, Rolf Pinkos, Rudolf Erich Lorenz
  • Method for producing gamma-butyrolactone
    Patent number: 6521763
    Abstract: In a process for preparing GBL by reaction of 1,4 butanediol over a copper catalyst, use is made of a 1,4 butanediol-containing reaction mixture which comprises further alcohols other than 1,4-butanediol and water.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: February 18, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Rolf Fischer, Rolf Pinkos
  • Method for producing n-alkenyl amides
    Publication number: 20030028035
    Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst compounds of the general formulae (Ia) and/or (Ib)
    Type: Application
    Filed: June 19, 2002
    Publication date: February 6, 2003
    Inventors: Arnd Boettcher, Rolf Pinkos, Thomas Preiss, Rudolf Erich Lorenz
  • Purification of N-vinyl-epsilon-caprolactam
    Publication number: 20030004284
    Abstract: A process for purifying N-vinyl-&egr;-caprolactam comprises converting the N-vinyl-&egr;-caprolactam which is to be purified and has a purity of at least 95% by weight into a melt, partially crystallizing the melt and separating the crystals from the mother liquor.
    Type: Application
    Filed: May 23, 2002
    Publication date: January 2, 2003
    Inventors: Arnd Bottcher, Rolf Pinkos, Rudolf Erich Lorenz, Heike Becker