Patents by Inventor Joseph H. Lippold, Jr.

Joseph H. Lippold, Jr. 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 controlling the viscosity and stability of a coal-water fuel slurry
    Patent number: 4687490
    Abstract: According to the present invention there is provided a process for producing a low viscosity, stable coal-water fuel slurry by controlling the concentration of soluble inorganic salts in the coal-water fuel slurry. The process of the present invention comprises determining the soluble ion content of a coal; treating the coal to control the soluble ion content thereof by removing soluble ions from the coal or adding a soluble inorganic salt or electrolyte to the coal; and admixing the coal with a dispersant, a base and water to produce a coal-water fuel slurry comprising 60-75% by weight coal and having a total hardness of 100 ppmc to 1000 ppmc, preferably 200 ppmc to 600 ppmc, expressed as Ca.sup.2+ ion concentration.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: August 18, 1987
    Assignee: Atlantic Research Corporation
    Inventors: Harley L. Heaton, III, Joseph H. Lippold, Jr., Edward T. McHale, Edward G. Skolnik