Patents by Inventor Stefan Maurer

Stefan Maurer 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).

  • Publication number: 20150361325
    Abstract: The present invention relates to a process for recovering oil from a subterranean formation by injecting both solid particles and water into the formation. An oil-in-water emulsion that is stabilized by solid particles is formed in the pores of the formation. This emulsion is recovered from the subterranean formation.
    Type: Application
    Filed: January 15, 2014
    Publication date: December 17, 2015
    Applicants: WHEREAS, WINTERSHALL HOLDING GMBH, BASF SE
    Inventors: Riichiro Kimura, Stefan Maurer, Andrei-Nicolae Parvulescu, Lorenz Siggel, Ulrich Müller, Thomas Frechen, Bernd Hinrichsen
  • Publication number: 20150353808
    Abstract: The presently claimed invention is directed a solid particles-stabilized emulsion containing a continuous phase and a dispersed phase comprising a) water, b) crude oil having a viscosity in the range of 1 to 10000 mPa·s at a temperature of 20° C. according to DIN 53019 and c) at least one layered double hydroxide of general formula (I), wherein water is the continuous phase and crude oil is the dispersed phase, and a process for preparing the same.
    Type: Application
    Filed: January 15, 2014
    Publication date: December 10, 2015
    Applicant: WINTERSHALL HOLDING GMBH
    Inventors: Riichiro Kimura, Stefan Maurer, Andrei-Nicolae Parvulescu, Lorenz Siggel, Ulrich Müller, Thomas Frechen, Bernd Hinrichsen
  • Publication number: 20150329368
    Abstract: A process for the post-treatment of a zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure, wherein the framework structure of the zeolitic material comprises X2O3 and YO2, wherein Y is a tetravalent element and X is a trivalent element and wherein the molar ratio X2O3:YO2 is greater than 0.02:1; (ii) treating the zeolitic material provided in (i) with a liquid solvent system thereby obtaining a zeolitic material having a molar ratio X2O3:YO2 of at most 0.02:1, and at least partially separating the zeolitic material from the liquid solvent system; (iii) treating the zeolitic material obtained from (ii) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.
    Type: Application
    Filed: October 9, 2013
    Publication date: November 19, 2015
    Applicant: BASF SE
    Inventors: Andrei-Nicolae PARVULESCU, Jeff YANG, Stefan MAURER, Manuela GAAB, Karsten SEIDEL, Olga GERLACH, Ulrich MUELLER
  • Publication number: 20150298983
    Abstract: Described is a preparation method for zeolite molecular sieves by means of solid-state reactions without the usage of organic templates. The method comprises the following steps: grinding and mixing the solid raw materials comprising the silicon source, the aluminum source and the alkali source, transferring the obtained mixture into an autoclave, conducting the crystallization for a period of 5 hours-20 days at a temperature of 50-200° C. After filtering and drying the crystallized products, molecular sieves in a powder form can be obtained. The method provides different molecular sieves, including ZSM-5 zeolite, Beta zeolite, FAU zeolite, MOR zeolite, LTA zeolite, and GIS zeolite, with a high crystallinity and an adjustable Si/Al ratio within a certain range.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 22, 2015
    Applicant: BASF SE
    Inventors: Stefan Maurer, Ulrich Müller, Feng-Shou Xiao, Xiangju Meng, Qinming Wu
  • Publication number: 20150284255
    Abstract: A process for the post-treatment of a zeolitic material, the process comprising (i) providing a zeolitic material, wherein the framework structure of the zeolitic material comprises YO2 and X2O3, wherein Y is a tetravalent element and X is a trivalent element; (ii) subjecting the zeolitic material provided in (i) to a method comprising (a) treating the zeolitic material with an aqueous solution having a pH of at most 5, (b) treating the zeolitic material obtained from (a) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.; wherein in (ii) and after (b), the zeolitic material is optionally subjected to at least one further treatment according to (a) and/or at least one further treatment according to (b).
    Type: Application
    Filed: October 9, 2013
    Publication date: October 8, 2015
    Applicant: BASF SE
    Inventors: Stefan Maurer, Faruk Oezkirim, Andrei-Nicolae Parvulescu, Jeff Yang, Ulrich Mueller
  • Publication number: 20150274540
    Abstract: The present invention relates to a process for the production of a zeolitic material having a framework structure comprising YO2, wherein said process comprises: (1) preparing a mixture comprising one or more tetravalent elements Y in elemental form, one or more organic hydroxide salts, and one or more protic solvents; (2) reacting the mixture obtained in step (1) for converting at least part of the one or more tetravalent elements Y into an oxidic form thereof containing one or more Y—O single bonds and/or one or more Y?O double bonds; and (3) crystallizing a zeolitic material from the mixture obtained in step (2).
    Type: Application
    Filed: October 1, 2013
    Publication date: October 1, 2015
    Applicant: BASF SE
    Inventors: Stefan Maurer, Roger Ruetz, Julia Petry, Ulrich Mueller
  • Patent number: 9139600
    Abstract: Described are acetylene bridged linkers, metal-organic frameworks produced thereof, processes for producing the linkers and the metal-organic frameworks, and the use of the metal-organic frameworks. The metal-organic frameworks possess an enhanced ability to adsorb and desorb high amounts of gases, in particular methane or hydrogen. The metal-organic frameworks have a high porosity and, thus, a high inner surface.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: September 22, 2015
    Assignee: BASF SE
    Inventors: Stefan Maurer, Ulrich Müller, Vijay Narayanan Swaminathan, Shrirang Bhikaji Hindalekar, Amal Pandya
  • Publication number: 20150030515
    Abstract: Described is a process for the treatment of a gas stream containing nitrogen oxides. The process comprises the steps of: (1) providing a gas stream containing one or more nitrogen oxides; (2) contacting the gas stream provided in step (1) with a transition metal containing zeolitic material having a BEA-type framework structure for reacting one or more of the nitrogen oxides; wherein the zeolitic material is obtainable from an organotemplate-free synthetic process. Also described is an apparatus for the treatment of a gas stream comprising containing nitrogen oxides.
    Type: Application
    Filed: February 6, 2013
    Publication date: January 29, 2015
    Inventors: Stephan Deuerlein, Stefan Maurer
  • Publication number: 20140208650
    Abstract: The present invention relates to extruded shaped bodies containing at least one metal-organic framework (MOF), methods for their preparation and their use.
    Type: Application
    Filed: January 31, 2014
    Publication date: July 31, 2014
    Applicant: BASF SE
    Inventors: Manuela Gaab, Christian Eichholz, Milan Kostur, Ulrich Müller, Stefan Maurer
  • Patent number: 8703644
    Abstract: Aspects of the present invention relate to shaped bodies of compositions comprising a porous aromatic covalent framework polymer, wherein the polymer comprises at least one monomer unit, the at least one monomer unit comprising at least one aromatic ring and the at least one monomer unit having at least three binding sites to adjacent monomer units in the polymer and a core, wherein the at least three binding sites are located on at least one atom of the core and wherein the at least one atom is free of covalent bonds to hydrogen; and at least one binder additive. Other aspects of the invention relate to methods for the preparation of said shaped bodies and their uses.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: April 22, 2014
    Assignee: BASF SE
    Inventors: Manuela Gaab, Stefan Maurer, Wolf-Rüdiger Krahnert, Milan Kostur, Ulrich Müller, Ranjit Gokhale, Shrirang Bhikaji Hindalekar
  • Publication number: 20140081044
    Abstract: Described are acetylene bridged linkers, metal-organic frameworks produced thereof, processes for producing the linkers and the metal-organic frameworks, and the use of the metal-organic frameworks. The metal-organic frameworks possess an enhanced ability to adsorb and desorb high amounts of gases, in particular methane or hydrogen. The metal-organic frameworks have a high porosity and, thus, a high inner surface.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 20, 2014
    Applicant: BASF SE
    Inventors: Stefan Maurer, Ulrich Müller, Vijay Narayanan Swaminathan, Shrirang Bhikaji Hindalekar, Amal Pandya
  • Publication number: 20120270731
    Abstract: Aspects of the present invention relate to shaped bodies of compositions comprising a porous aromatic covalent framework polymer, wherein the polymer comprises at least one monomer unit, the at least one monomer unit comprising at least one aromatic ring and the at least one monomer unit having at least three binding sites to adjacent monomer units in the polymer and a core, wherein the at least three binding sites are located on at least one atom of the core and wherein the at least one atom is free of covalent bonds to hydrogen; and at least one binder additive. Other aspects of the invention relate to methods for the preparation of said shaped bodies and their uses.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: BASF SE
    Inventors: Manuela Gaab, Stefan Maurer, Wolf-Rüdiger Krahnert, Milan Kostur, Ulrich Müller, Ranjit Gokhale, Shrirang Bhikaji Hindalekar
  • Publication number: 20110097192
    Abstract: A pyrometer for gas turbines is provided. Incident thermal radiation is split between a plurality of optical wave guides by a reflection prism and a lens according to regions on the surface of a turbine blade. The pyrometer is built into the wall of the turbine without protruding and enables the simultaneous and parallel measurement of the temperature of a plurality of regions on the surface of the turbine blade when a spectrum of the heat radiation is largely maintained.
    Type: Application
    Filed: March 17, 2009
    Publication date: April 28, 2011
    Inventors: Thomas Bosselmann, Stefan Maurer, Michael Willsch