Patents by Inventor William D. Eccli

William D. Eccli 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).

  • Single temperature stage crystallization of paraxylene
    Patent number: 5498822
    Abstract: This invention is a crystallization process for p-xylene recovery. A single temperature crystallization stage is used for producing p-xylene from a feed having an above equilibrium p-xylene concentration, such as from toluene disproportionation.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: March 12, 1996
    Assignee: Mobil Oil Corporation
    Inventors: William D. Eccli, Alexander D. S. Fremuth
  • Crystallization of paraxlene from high purity paraxylene feeds
    Patent number: 5448005
    Abstract: This invention is a crystallization process for p-xylene recovery. A single temperature crystallization production stage is used for producing p-xylene from a feed having an above equilibrium p-xylene concentration, such as from a toluene disproportionation process. Scavenger stages are also used to raise the p-xylene recovery rate.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: September 5, 1995
    Assignee: Mobil Oil Corporation
    Inventors: William D. Eccli, Alexander D. S. Fremuth