Patents by Inventor William W. Wentzheimer

William W. Wentzheimer 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).

  • Process to make technical white oils
    Patent number: 4072603
    Abstract: A process for making technical white oils in a single step hydrogenation and without the need for acid treating to meet white oil specification by hydrogenating a hydrocracked solvent extracted lubricating oil distilling between 650.degree. and 1050.degree. F., having a SUS/100.degree. F. viscosity of about 200 and an aromatic content of less than about 15% in a single step at 600.degree. to 700.degree. F., and at 2000 to 3000 psig in the presence of a catalyst comprising nickel and tungsten supported on silica-alumina, subjecting the hydrogenated solvent extracted lube oil to atmospheric distillation to remove distillates useful as fuels and subjecting the bottoms of said atmospheric distillation to a vacuum distillation to yield various viscosity grades of technical white oils.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: February 7, 1978
    Assignee: Suntech, Inc.
    Inventor: William W. Wentzheimer