Patents Represented by Attorney John F. Cutts, Jr.

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  • Process for the liquefaction of coal and separation of solids from the liquid product
    Patent number: 4081359
    Abstract: Production of a low mineral content fuel by a coal liquefaction process utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a part of which is suspended in the liquid. The suspended solids are effectively removed with minimum loss of desired product by means of a light aromatic solvent in combination with a hydrogenated coal solvent.
    Type: Grant
    Filed: December 14, 1976
    Date of Patent: March 28, 1978
    Assignee: UOP Inc.
    Inventors: John G. Gatsis, Gim Tan