Patents by Inventor Raymond L. Kelleher

Raymond L. Kelleher 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).

  • Sulfur recovery method
    Patent number: 4048287
    Abstract: Sulfur recovery from smelter and like exhaust gases by regfrigerating the exhaust gases and removal of most of the contained water and SO.sub.2 as a liquid phase, the removal being by liquid spray scrubbing, utilizing previously recovered water, after SO.sub.2 removal therefrom, as the scrubbing liquid. Single or plural stages of refrigeration and liquid phase separation can be employed. The SO.sub.2 is removed by combining thereof with the cool scrubbing water and is recovered by chemical treatment to neutralize and precipitate such as a sulfite salt.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: September 13, 1977
    Assignee: The Corporation of Gonzaga University
    Inventors: Raymond L. Kelleher, Ivan A. Shirk, Timothy J. O'Leary, deceased