Patents by Inventor Thilo Buntrock

Thilo Buntrock 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).

  • Process for obtaining maleic anhydride by distillation
    Patent number: 8461356
    Abstract: What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining c
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: June 11, 2013
    Assignee: BASF SE
    Inventors: Gunther Windecker, Gerd Kaibel, Michael Steiniger, Thilo Buntrock, Jens Weiguny, Dany Vanden Hautte, Thierry Lurquin
  • PROCESS FOR OBTAINING MALEIC ANHYDRIDE BY DISTILLATION
    Publication number: 20100113805
    Abstract: What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining c
    Type: Application
    Filed: March 19, 2008
    Publication date: May 6, 2010
    Applicant: BASF SE
    Inventors: Gunther Windecker, Gerd Kaibel, Michael Steiniger, Thilo Buntrock, Jens Weiguny, Dany Vanden Hautte, Thierry Lurquin