Patents by Inventor Steven F. Seltzer

Steven F. Seltzer 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).

  • Removal of uranium from aqueous HF solutions
    Patent number: 4234555
    Abstract: This invention is a simple and effective method for removing uranium from aqueous HF solutions containing trace quantities of the same. The method comprises contacting the solution with particulate calcium fluoride to form uranium-bearing particulates, permitting the particulates to settle, and separting the solution from the settled particulates. The CaF.sub.2 is selected to have a nitrogen surface area in a selected range and is employed in an amount providing a calcium fluoride/uranium weight ratio in a selected range. As applied to dilute HF solutions containing 120 ppm uranium, the method removes at least 92% of the uranium, without introducing contaminants to the product solution.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: November 18, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Howard Pulley, Steven F. Seltzer