Molybdenum recovery from aqueous nitric acid solution by solvent extraction

Patent · Tue Mar 05 04:00:00 EST 2019

OSTI ID:1525028

Gelis, Artem V.; Brown, Michael Alexander

The invention provides a method for extracting transition metals, the method comprising supplying a feedstream containing transition metal, mixing the feedstream with nitric acid for a time and at a concentration sufficient to form an aqueous phase containing the transition metal, combining the aqueous phase with organic extractant phase for a time and at a concentration sufficient to cause the transition metal to reside within the organic extractant phase, and combining the transition metal-containing organic extractant phase with an hydroxamic acid-containing aqueous phase at a concentration and for a time sufficient to cause the transition metal to reside in the hydroxamic acid-containing aqueous phase.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-06CH11357
• Assignee: UChicago Argonne, LLC (Chicago, IL)
• Patent Number(s): 10,221,466
• Application Number: 14/819,105
• OSTI ID: 1525028
• Country of Publication: United States
• Language: English