Patents by Inventor Robert A. Gustison

Robert A. Gustison 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 recovery of niobium values for use in preparing niobium alloy products
    Patent number: 4164417
    Abstract: The invention disclosed provides a process for recovering niobium values from aqueous hydrofluoric acid solutions by evaporating said solution to dryness and baking the residue at temperatures of 150.degree. to 250.degree. C. The solid residue is niobium oxyfluroide (NbO.sub.2 F) which may then be exothermically reduced with aluminum in the presence of an alloying element such as iron, nickel, or chromium to produce a niobium alloy. The evaporated hydrofluoric acid may be recovered by condensing or absorbing the evolved vapors.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: August 14, 1979
    Assignee: Kawecki Berylco Industries, Inc.
    Inventor: Robert A. Gustison