Patents by Inventor Robert J. W. McLaughlin

Robert J. W. McLaughlin 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).

  • Mineral treatment
    Patent number: 4159308
    Abstract: The addition of a normally insoluble fluoride to a reaction being a chemical treatment process provides a surprisingly improved rate is dissolution in many cases. Specifically, where the fluoride is added to a reaction using hydrochloric acid or ferric chloride, the yield is more rapid than has previously been shown in the art. The invention is most applicable where the stability constant of the fluoride or fluoride complex of the element to be recovered is higher than that of the cation with which the fluoride is originally associated.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: June 26, 1979
    Assignee: The University of Melbourne
    Inventor: Robert J. W. McLaughlin