Title:
EXTRACTION OF URANIUM FROM WET-PROCESS PHOSPHORIC ACID
Document Type and Number:
WIPO Patent Application WO/2010/014562
Kind Code:
A3
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.
Inventors:
BRISTOW NICHOLAS WARWICK (AU)
CHALMERS MARK S (AU)
DAVIDSON JAMES ANDREW (AU)
JONES BRYN LLYWELYN (AU)
KUCERA PAUL ROBERT (US)
LYNN NICK (US)
MACINTOSH PETER DOUGLAS (AU)
PAGE JESSICA MARY (AU)
POOL THOMAS CHARLES (US)
RICHARDSON MARCUS WORSLEY (AU)
SOLDENHOFF KARIN HELENE (AU)
TAYLOR KELVIN JOHN (AU)
WAYRAUCH COLIN (US)
CHALMERS MARK S (AU)
DAVIDSON JAMES ANDREW (AU)
JONES BRYN LLYWELYN (AU)
KUCERA PAUL ROBERT (US)
LYNN NICK (US)
MACINTOSH PETER DOUGLAS (AU)
PAGE JESSICA MARY (AU)
POOL THOMAS CHARLES (US)
RICHARDSON MARCUS WORSLEY (AU)
SOLDENHOFF KARIN HELENE (AU)
TAYLOR KELVIN JOHN (AU)
WAYRAUCH COLIN (US)
Application Number:
PCT/US2009/051886
Publication Date:
April 15, 2010
Filing Date:
July 28, 2009
Export Citation:
Assignee:
URTEK LLC (US)
BRISTOW NICHOLAS WARWICK (AU)
CHALMERS MARK S (AU)
DAVIDSON JAMES ANDREW (AU)
JONES BRYN LLYWELYN (AU)
KUCERA PAUL ROBERT (US)
LYNN NICK (US)
MACINTOSH PETER DOUGLAS (AU)
PAGE JESSICA MARY (AU)
POOL THOMAS CHARLES (US)
RICHARDSON MARCUS WORSLEY (AU)
SOLDENHOFF KARIN HELENE (AU)
TAYLOR KELVIN JOHN (AU)
WAYRAUCH COLIN (US)
BRISTOW NICHOLAS WARWICK (AU)
CHALMERS MARK S (AU)
DAVIDSON JAMES ANDREW (AU)
JONES BRYN LLYWELYN (AU)
KUCERA PAUL ROBERT (US)
LYNN NICK (US)
MACINTOSH PETER DOUGLAS (AU)
PAGE JESSICA MARY (AU)
POOL THOMAS CHARLES (US)
RICHARDSON MARCUS WORSLEY (AU)
SOLDENHOFF KARIN HELENE (AU)
TAYLOR KELVIN JOHN (AU)
WAYRAUCH COLIN (US)
International Classes:
C01G43/00; C22B60/02
Foreign References:
| KR890003974B1 | 1989-10-14 | |||
| KR870002187B1 | 1987-12-28 | |||
| US20030113247A1 | 2003-06-19 | |||
| JPS589823A | 1983-01-20 |
Attorney, Agent or Firm:
NAPOLITANO, Carl, M. (Dyer Doppelt, Milbrath & Gilchrist, P.A.,255 South Orange Ave., Suite 1401,P.o. Box 379, Orlando FL, US)
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