Patents by Inventor Abdelaziz Toumi

Abdelaziz Toumi 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).

  • APPARATUS FOR THE SEMI-CONTINUOUS CHROMATOGRAPHIC SEPARATION OF BINARY AND MULTI-COMPONENT MIXTURES
    Publication number: 20100230341
    Abstract: The invention relates to a semi-continuous chromatographic method for the separation of binary and multi-component mixtures and corresponding devices.
    Type: Application
    Filed: April 20, 2010
    Publication date: September 16, 2010
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventor: Abdelaziz Toumi
  • Semi-continuous chromatographic method and corresponding device for the separation of binary and multi-component mixtures
    Patent number: 7749390
    Abstract: The invention relates to a semi-continuous chromatographic method for the separation of binary and multi-component mixtures and corresponding devices.
    Type: Grant
    Filed: June 3, 2006
    Date of Patent: July 6, 2010
    Assignee: Bayer Technology Services, GmbH
    Inventor: Abdelaziz Toumi
  • SEMI-CONTINUOUS CHROMATOGRAPHIC METHOD AND CORRESPONDING DEVICE FOR THE SEPARATION OF BINARY AND MULTI-COMPONENT MIXTURES
    Publication number: 20090194482
    Abstract: The invention relates to a semi-continuous chromatographic method for the separation of binary and multi-component mixtures and corresponding devices.
    Type: Application
    Filed: June 3, 2006
    Publication date: August 6, 2009
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventor: Abdelaziz Toumi
  • METHOD AND SYSTEM FOR REGULATING A CONTINUOUS CRYSTALLIZATION PROCESS
    Publication number: 20090159257
    Abstract: A process and a system for regulating a continuous crystallization process which can be used especially for preparation of bisphenol A comprises a heat exchanger connected in a circuit to a crystallization apparatus. A heat exchange performance of the heat exchanger to cool an exit stream of the crystallization apparatus is established as a function of a feed stream supplied, in order to deliver by regulation an exit temperature of the exit stream. The heat exchange performance is calculated, and the calculated heat exchange performance is established in the heat exchanger with a time delay. The time delay prevents large temperature differences in the heat exchanger, so as to prevent fouling in the heat exchanger. With improved regulation quality, this leads to fewer production shutdowns and hence to improved productivity.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 25, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Marolt, Dirk Bergmann, Abdelaziz Toumi, Arne Braun