Patents by Inventor Raymond T. Moy

Raymond T. Moy 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 for the oxidation of benzene to phenol
    Patent number: 4992600
    Abstract: The instant invention relates to a process for the oxidation of benzene to phenol which comprises contacting benzene and molecular oxygen with a dihydrodihydroxyanthracene-sulfonate salt dissolved in water, optionally in the presence of an oxidation catalyst, and subsequently separating from the reaction product phenol and the corresponding anthraquinone-sulfonate. The by-product anthraquinone is suitably recycled to the benzene oxidation step by hydrogenating the anthraquinone salt to the dihydrodihydroxyanthracene salt.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: February 12, 1991
    Assignee: Shell Oil Company
    Inventors: Kuo-Hua Chao, Raymond T. Moy
  • Process for the oxidation of benzene to phenol
    Patent number: 4982015
    Abstract: The instant invention relates to a process for the oxidation of benzene to phenol which comprises contacting benzene and molecular oxygen with a dihydrodihydroxynaphthoquinone, optionally in the presence of an oxidation catalyst, and subsequently separating from the reaction product phenol and the corresponding naphthoquinone. The by-product napththoquinone is suitably recycled to the benzene oxidation step by hydrogenating the naphthoquinone to the dihydrodihydroxynapththoquinone.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: January 1, 1991
    Assignee: Shell Oil Company
    Inventors: Kuo-Hua Chao, Raymond T. Moy