Patents by Inventor Bryan L. Carlson

Bryan L. Carlson 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).

  • Metal and fluorine values recovery from mineral ore treatment
    Patent number: 5384105
    Abstract: The process for recovering Ta/Nb values from highly flourinated ore materials by the process of;(a) contacting the materials with one or a mixture of HNO.sub.3 or HCl, and H.sub.3 BO.sub.3 wherein the H.sub.3 BO.sub.3 to other acid molar ratio is from about 1/10 to about 1/1,(b) maintaining the temperature between about 55 C. and about 85 C.,(c) reacting for a sufficient period to substantially solubilize the major portion of the materials and to substantially insolubilize all Ta/Nb values, and(d) separating the solids containing the Ta/Nb values from solution.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: January 24, 1995
    Assignee: Eco Tek, Inc.
    Inventor: Bryan L. Carlson