Patents by Inventor Ralf Jantke

Ralf Jantke 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).

  • Patent number: 8449812
    Abstract: A process for the production of a titanium silicalite shaped article by: a) preparation of a synthesis gel containing a Si2 source, a Ti2 source, a template compound and water, b) crystallization of the synthesis gel under hydrothermal conditions, c) drying of the titanium silicalite from step b) at a temperature below the decomposition temperature of the template compound, d) preparation of a formable mass containing the product from step c), a binder and a paste-forming agent, e) forming of the mass from step d) into a green shaped article, f) optionally drying, and g) calcinations of the green shaped article, as well as a titanium silicalite shaped article obtainable according to this process, and the use of this shaped article as a catalyst in epoxidation or ammoximation reactions.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: May 28, 2013
    Assignee: Evonik Degussa AG
    Inventors: Steffen Hasenzahl, Ralf Jantke
  • Patent number: 6849570
    Abstract: The present invention relates to a process for the production of a titanium silicalite shaped body by: (a) forming a formable composition containing titanium silicalite, a binder and a pasting agent, so that the Curd curve of the formable composition has a plateau value in the range from 20 to 90 mm; (b) shaping the composition of step (a) to form a green body; (c) optionally drying and (d) calcining the green body, to a titanium silicalite shaped body obtainable by that process, and to the use of such titanium silicalite shaped bodies in the epoxidation of olefins or the ammoximation of ketones.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: February 1, 2005
    Assignee: Degussa AG
    Inventors: Steffen Hasenzahl, Ralf Jantke
  • Publication number: 20030130116
    Abstract: The present invention relates to a process for the production of a titanium silicalite shaped article by:a) preparation of a synthesis gel containing a Si2 source, a Ti2 source, a template compound and water,b) crystallisation of the synthesis gel under hydrothermal conditions,c) drying of the titanium silicalite from step b) at a temperature below the decomposition temperature of the template compound,d) preparation of a formable mass containing the product from step c), a binder and a paste-forming agent,e) forming of the mass from step d) into a green shaped article,f) optionally drying, andg) calcination of the green shaped article, as well asa titanium silicalite shaped article obtainable according to this process, and the use of this shaped article as a catalyst in epoxidation or ammoximation reactions.
    Type: Application
    Filed: October 15, 2002
    Publication date: July 10, 2003
    Inventors: Steffen Hasenzahl, Ralf Jantke
  • Publication number: 20030078160
    Abstract: The present invention relates to a process for the production of a titanium silicalite shaped body by: (a) forming a formable composition containing titanium silicalite, a binder and a pasting agent, so that the Curd curve of the formable composition has a plateau value in the range from 20 to 90 mm; (b) shaping the composition of step (a) to form a green body; (c) optionally drying and (d) calcining the green body, to a titanium silicalite shaped body obtainable by that process, and to the use of such titanium silicalite shaped bodies in the epoxidation of olefins or the ammoximation of ketones.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 24, 2003
    Inventors: Steffen Hasenzahl, Ralf Jantke