Patents by Inventor Elke Geißler

Elke Geißler 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).

  • DEVICES AND METHOD FOR CONTINUOUS DISTILLATIVE SEPARATION OF A MIXTURE CONTAINING ONE OR MORE ALKANOLAMINE(S)
    Publication number: 20140061020
    Abstract: Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s) are described. The separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)).
    Type: Application
    Filed: October 18, 2013
    Publication date: March 6, 2014
    Applicant: BASF SE
    Inventors: Willi Schmidt, Gerd Kaibel, Elke Geißler, Wolfgang Reif, Manfred Julius, Frank-Friedrich Pape
  • DEVICES AND METHOD FOR CONTINUOUS DISTILLATIVE SEPARATION OF A MIXTURE CONTAINING ONE OR MORE ALKANOLAMINE(S)
    Publication number: 20110168542
    Abstract: Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s), wherein the separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)).
    Type: Application
    Filed: September 16, 2009
    Publication date: July 14, 2011
    Applicant: BASF SE
    Inventors: Willi Schmidt, Gerd Kaibel, Elke Geissler, Wolfgang Reif, Manfred Julius, Frank-Friedrich Pape
  • Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride
    Patent number: 7253316
    Abstract: Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: August 7, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Jörg Pastre, Kai Michael Exner, Wolfram Stüer, Elke Geissler, Otto Machhammer