Inventors:
Nicholas Warwick Bristow - Wilson WA, AU
Mark S. Chalmers - Littlehampton, AU
James Andrew Davidson - Wattyl Park, AU
Bryn Llywelyn Jones - Oakbank, AU
Paul Robert Kucera - Valrico FL, US
Nick Lynn - Englewood CO, US
Peter Douglas Macintosh - Peppermint Grove, AU
Jessica Mary Page - North Adelaide, AU
Thomas Charles Pool - Golden CO, US
Marcus Worsley Richardson - Goodwood, AU
Karin Helene Soldenhoff - Earlwood, AU
Kelvin John Taylor - West Leederville, AU
Colin Wayrauch - Brandon FL, US
International Classification:
C22B 60/02
US Classification:
423 7, 423 3, 423 15, 423 8
Abstract:
A process for the extraction of uranium compounds from wet-process phosphoric acid includes lowering the iron concentration of the wet-process phosphoric acid and reducing the valency of any remaining ferric iron in the wet-process phosphoric acid to ferrous iron, and then extracting uranium compounds from the wet-process phosphoric acid. The process can include separating a side stream from a feed stream of wet-process phosphoric acid, wherein the side stream has a greater concentration of the uranium compounds than the feed stream by filtration. Extracting uranium compounds from the wet-process phosphoric acid can be by ion exchange process or by solvent extraction.