Abstract: A process for selectively extracting metal values, including, uranium, thorium, scandium and zirconium, from starting materials which include the metal values. The process is particularly well suited to extracting metal and recovering metal values from tantalum/niobium production process ore residues.
Type:
Grant
Filed:
March 26, 1996
Date of Patent:
October 16, 2007
Assignee:
Caboi Corporation
Inventors:
Patrick M. Brown, Robert A Hard, Donna D. Harbuck, G. Kyle Green