Patents by Inventor Florian Rampf

Florian Rampf 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).

  • Pyrazolylarylalkines
    Publication number: 20040142820
    Abstract: The present invention relates to pyrazolylarylalkines and to their use, to a process for preparing pyrazolylarylalkines and also to intermediates.
    Type: Application
    Filed: January 5, 2004
    Publication date: July 22, 2004
    Inventors: Wolfgang Ebenbeck, Florian Rampf, Albrecht Marhold
  • Process for preparing sulfonated arylphosphines
    Publication number: 20040019236
    Abstract: A process for preparing solutions of sulfonated arylphosphines comprising reacting arylphosphines with oleum, diluting the sulfonation mixture with water, extracting the diluted sulfonation mixture with a solution of a water-insoluble organic solvent, reacting the organic phase with a solution of an inorganic base in water, adjusting the resulting aqueous solutin of sulfonated arylphosphines to a pH of up to 3 by addition of an acid, and passing an inert gas stream through the aqueous solution comprising sulfonated arylphosphines until sulfur is no longer liberated from the aqueous solution of sulfonated arylphosphines.
    Type: Application
    Filed: April 14, 2003
    Publication date: January 29, 2004
    Applicant: Celanese Chemicals Europe GmbH
    Inventors: Michael Riedel, Ernst Wiebus, Carl D. Frohning, Wilfried Fenske, Florian Rampf, Jurgen Herwig, Helmut Bahrmann, Klaus Bergrath, Wolfgang Zgorzel-Ski, Robert Eckl, Hans Bohnen, Richard Fischer, Kurt Schalapski, Wolfgang Greb
  • Process for preparing tertiary phosphines
    Publication number: 20030229240
    Abstract: The invention relates to a process for synthesizing tertiary phosphines by reacting halophosphines with organomagnesium compounds in the presence of copper compounds and optionally of salts.
    Type: Application
    Filed: April 17, 2003
    Publication date: December 11, 2003
    Inventors: Florian Rampf, Hans-Christian Militzer
  • Method for producing sulfonated aryl phosphines
    Patent number: 6610881
    Abstract: The invention relates to a method for producing sulfonated aryl phosphines by reacting aryl phosphines with oleum. After reacting the aryl phosphines with oleum, the sulfonation mixture is firstly diluted with water and an inert gas stream is then fed through the diluted sulfonation mixture until SO2 is no longer released from the diluted sulfonation mixture. Afterwards, the sulfonation mixture is subsequently processed in a usual manner. The invention also relates to a method for producing solutions of sulfonated aryl phosphines by reacting the aryl phosphines with oleum, diluting the sulfonation mixture with water, extracting the aqueous solution using an organic solution consisting of an amine, and subsequently carrying out a reextraction using an aqueous solution having an inorganic base.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: August 26, 2003
    Assignee: Celanese Chemicals Europe
    Inventors: Michael Riedel, Jurgen Herwig, Helmut Bahrmann, Klaus Bergrath, Wolfgang Zgorzel-Ski, Robert Eckl, Ernst Wiebus, Carl D Frohning, Wilfried Fenske, Florian Rampf
  • Arylation of olefins
    Publication number: 20030114707
    Abstract: The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a dipolar aprotic solvent.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 19, 2003
    Inventors: Florian Rampf, Markus Eckert
  • Process for the arylation of olefins
    Publication number: 20030105353
    Abstract: The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a salt.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 5, 2003
    Inventors: Florian Rampf, Markus Eckert