Patents by Inventor Gerald Molz

Gerald Molz 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 the distillative recovery of toluylenediamine
    Patent number: 7342134
    Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region (2), a lower combined column region (3), a feed section (4) having a rectifying section (5) and stripping section (6), and also a withdrawal section (7) having a rectifying section (9) and stripping section (8), which comprises the following steps: a. feeding the reactant stream (13) into the feed section (4) of the dividing wall column (1); b. drawing off a low boiler fraction via the top of the column (11); c. drawing off TDA via a side draw (14) in the withdrawal section (7) of the dividing wall column (1); d. drawing off a low boiler fraction via the bottom of the column (12).
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: March 11, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Carsten Knoesche, Martin Sohn, Ulrich Penzel, Hans-Juergen Pallasch, Gunter Georgi, Wolfgang Mackenroth, Hans Volkmar Schwarz, Stefan Maixner, Gerald Molz, Eckhard Stroefer
  • Method for the distillative recovery of toluylenediamine
    Publication number: 20070083065
    Abstract: The invention relates to a process for distillatively preparing TDA from a reactant stream comprising TDA, high boilers and low boilers in a dividing wall column in which a dividing wall is disposed in the longitudinal direction of the column to form an upper combined column region (2), a lower combined column region (3), a feed section (4) having a rectifying section (5) and stripping section (6), and also a withdrawal section (7) having a rectifying section (9) and stripping section (8), which comprises the following steps: a. feeding the reactant stream (13) into the feed section (4) of the dividing wall column (1); b. drawing off a low boiler fraction via the top of the column (11); c. drawing off TDA via a side draw (14) in the withdrawal section (7) of the dividing wall column (1); d. drawing off a low boiler fraction via the bottom of the column (12).
    Type: Application
    Filed: January 7, 2005
    Publication date: April 12, 2007
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Carsten Knoesche, Martin Sohn, Ulrich Penzel, Hans-Jurgen Pallach, Gunter Georgi, Wolfgang Mackenroth, Hans Schwarz, Stefan Maixner, Gerald Molz, Eckhard Stroefer