Patents by Inventor Lothar Kerker

Lothar Kerker 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).

  • Oligomerization of isobutene in N-butenic hydrocarbon streams
    Patent number: 7161053
    Abstract: Isobutene in isobutenic hydrocarbon mixtures is oligomerized over a solid acidic ion exchange resin, said acidic ion exchange resin containing, for example, sulfonic acid groups, some of whose protons have been exchanged for metal ions.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: January 9, 2007
    Assignee: Oxeno Olefinchemie GmbH
    Inventors: Andreas Beckmann, Franz Nierlich, Udo Peters, Wilfried Büschken, Lothar Kerker, Dietrich Maschmeyer, Dirk Röttger
  • Process for the oligomerization of butenes
    Publication number: 20060264686
    Abstract: The invention relates to a process for the oligomerization of butenes, in which a stream which contains predominantly butenes and has been obtained by separation from a stream of hydrocarbons having a lower content of butenes, scrubbing and drying is fed to the oligomerization.
    Type: Application
    Filed: January 6, 2006
    Publication date: November 23, 2006
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Lothar Kerker, Armin Rix, Frank Hoper, Rainer Malzkorn, Dirk Roettger
  • Method for separating butenes and butanes by extractive distillation provided with a polar extraction agent
    Publication number: 20060096849
    Abstract: The invention relates to a process for separating butenes and butanes by extracting with a polar extractant.
    Type: Application
    Filed: August 6, 2003
    Publication date: May 11, 2006
    Inventors: Lothar Kerker, Rainer Malzkorn
  • Method for preparing high-purity diisobutene
    Patent number: 7002053
    Abstract: The invention relates to a process for preparing high-purity diisobutene by reaction of isobutene or isobutene-containing hydrocarbon mixtures over a solid acidic ion-exchange resin containing sulfonic acid groups whose protons have been partly replaced by metal ions and to the use of the diisobutene.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: February 21, 2006
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Franz Nierlich, Lothar Kerker, Udo Peters, Wilfried Büschken, Andreas Beckmann
  • Process for preparing salts of methallylsulfonic acid
    Patent number: 6864388
    Abstract: A process for preparing salts of methallylsulfonic acid in which the reaction mixture produced from the sulfonation is diluted with water and neutralized with a base.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 8, 2005
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Claus York Werninger, Lothar Kerker, Hartmut Steinbeisser, Wilfried Bueschken, Franz-Felix Kuppinger, Peter Ernst Esser
  • Oligomerization of isobutene in N-butenic hydrocarbon streams
    Publication number: 20040097773
    Abstract: Isobutene in isobutenic hydrocarbon mixtures is oligomerized over a solid acidic ion exchange resin, said acidic ion exchange resin containing, for example, sulfonic acid groups, some of whose protons have been exchanged for metal ions.
    Type: Application
    Filed: August 6, 2003
    Publication date: May 20, 2004
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Andreas Beckmann, Franz Nierlich, Udo Peters, Wilfried Bueschken, Lothar Kerker, Dietrich Maschmeyer, Dirk Rottger
  • Method for producing high-purity diisobutene
    Publication number: 20040054246
    Abstract: The invention relates to a process for preparing high-purity diisobutene by reaction of isobutene or isobutene-containing hydrocarbon mixtures over a solid acidic ion-exchange resin containing sulfonic acid groups whose protons have been partly replaced by metal ions and to the use of the diisobutene.
    Type: Application
    Filed: August 13, 2003
    Publication date: March 18, 2004
    Inventors: Franz Nierlich, Lothar Kerker, Udo Peters, Wilfried Buschken, Andreas Beckmann
  • Process for preparing salts of methallylsulfonic acid
    Publication number: 20030070928
    Abstract: A process for preparing salts of methallylsulfonic acid in which the reaction mixture produced from the sulfonation is diluted with water and neutralized with a base.
    Type: Application
    Filed: July 24, 2002
    Publication date: April 17, 2003
    Inventors: Claus York Werninger, Lothar Kerker, Hartmut Steinbeisser, Wilfried Bueschken, Franz-Felix Kuppinger, Peter Ernst Esser
  • Process for the production of acetylene and synthesis or reduction gas from coal in an electric arc process
    Patent number: 4588850
    Abstract: For the manufacture of acetylene and synthesis or reduction gas from coal by means of an electric arc or plasma process, coal converted into powder form is pyrolyzed in an electric arc reactor with an energy density of 1 to 5 kWh/Nm.sup.3, a residence period of 0.5 to 10 msec and at a temperature of at least 1500.degree. C. such that the gaseous compounds derived from the coal do not exceed 1.8 times the so-called volatile content of the coal. The coke remaining after subsequent quenching is then fed to a second electric arc reactor in which the coke, by means of a gasifying medium in conjunction with heating by means of an electric arc or plasma process, is converted into synthesis or reduction gas furing a residence period of 1 to 15 sec and at a temperature of at least 800.degree. C. The gas flow from the pyrolysis zone is cleaned and acetylene is recovered therefrom by selective solvents. The gas from the cleaning stage is similarly cooled and cleaned.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: May 13, 1986
    Assignee: Huels Aktiengesellschaft
    Inventors: Richard Mueller, Lothar Kerker, Cornelius Peuckert