Patents by Inventor Joseph W. Clark

Joseph W. Clark 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).

  • Fractionation of methyl-mercaptan reactor effluent
    Patent number: 4186061
    Abstract: A method for separating a feedstock comprising hydrogen sulfide, methyl mercaptan, methanol, and water in which a sufficient amount of water is injected into the fractionating column above the feedstock inlet to water wash the organic phase, decanting water and methanol from a tray below the feedstock inlet so that the stream comprising hydrogen sulfide and a minimum of water can be removed overhead and a stream comprising methyl mercaptan and a minimum of water can be removed as bottoms.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: January 29, 1980
    Assignee: Phillips Petroleum Company
    Inventors: Dale A. Zellers, Joseph W. Clark