Urtek, LLC

University of Florida Research Foundation, Incorporated

Paul Robert Kucera

Karin Helene Soldenhoff

James Andrew Davidson

Bryn Llywelyn Jones

Marcus Worsley Richardson

Jessica Mary Page

Mark S Chalmers

Peter Douglas Macintosh

Colin Wayrauch

Nicholas Warwick Bristow

Nick Lynn

Thomas Charles Pool

Kelvin John Taylor

W Gregory Sawyer

Colin Weyrauch

A process for extracting uranium compounds from wet-process phosphoric acid (WPA) includes lowering iron content of WPA to produce a lowered iron WPA, reducing valency of any remaining iron in the lowered iron WPA to produce a reduced iron valency WPA. Uranium compounds are extracted from the reduced iron valency WPA via a solvent extraction process.

Extraction of uranium from wet-process phosphoric acid

Fertilizer granules and methods of producing fertilizer granules. The fertilizer granules are formed from a fertilizer composition, such as a phosphate fertilizer, includes a fibrous material for the purpose of increasing the granule strength preventing or reducing attrition or dusting formation during storage, transport, and/or handling of the fertilizer. Dust formation can be reduced fifty percent or more. The base fertilizer composition can include a phosphate fertilizer, such as monoammonium phosphate (MAP) or diammonium phosphate (DAP), and optionally one or more micronutrients or secondary nutrients, such as elemental sulfur. The fibrous material is pulp or paper sludge, for example.

Fertilizer composition incorporating fibrous material for enhanced particle integrity

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.

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Valrico, FL, United States of America

Paul Robert Kucera