Abrégé

A system for extracting uranium from wet-process phosphoric acid (WPA), includes an ion exchange resin or solvent extractor for separating uranium from WPA to produce a loaded uranium solution stream and a uranium depleted WPA stream. An ion exchange resin is positioned to receive the loaded uranium solution stream and bind uranium species thereto. An anion solution stream is positioned to feed a solution comprising anions onto the ion exchange resin to form a loaded uranium eluant stream. The loaded uranium eluant stream may then be treated to provide a uranium containing product.

Classes IPC  ?

• C01G 43/00 - Composés de l'uranium
• C01G 43/01 - OxydesHydroxydes
• C01G 43/025 - Dioxyde d'uranium
• C22B 60/00 - Obtention des métaux ayant un nombre atomique de 87 ou plus, c.-à-d. métaux radioactifs
• C22B 60/02 - Obtention du thorium, de l'uranium ou des autres actinides
• C01B 25/00 - PhosphoreSes composés
• C01B 25/16 - Oxyacides de phosphoreLeurs sels
• C01B 25/18 - Acide phosphorique
• C01B 25/22 - Préparation par réaction de produits contenant un phosphate avec un acide, p. ex. procédé par voie humide
• C01B 25/234 - PurificationStabilisationConcentration
• C01B 25/237 - Élimination sélective d'impuretés
• C01B 25/238 - Impuretés cationiques

Abrégé

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.

Classes IPC  ?

• C22B 60/00 - Obtention des métaux ayant un nombre atomique de 87 ou plus, c.-à-d. métaux radioactifs
• C22B 60/02 - Obtention du thorium, de l'uranium ou des autres actinides
• C01B 25/237 - Élimination sélective d'impuretés
• C01G 43/00 - Composés de l'uranium
• C01G 43/01 - OxydesHydroxydes

Abrégé

In a preferred embodiment, a process for extracting uranium from wet-process phosphoric acid (WPA), comprises separating uranium from WPA to produce a loaded uranium solution stream and a uranium depleted WPA stream. The loaded uranium solution stream is then contacted by with an ion exchange resin. Uranium species bound to the ion exchange resin are eluted by contacting the resin with a solution comprising anions to produce a loaded uranium eluant stream. The loaded uranium eluant stream is treated to provide a uranium containing product.

Classes IPC  ?

• C01G 43/00 - Composés de l'uranium
• C22B 60/02 - Obtention du thorium, de l'uranium ou des autres actinides
• C01B 25/238 - Impuretés cationiques
• C01B 25/237 - Élimination sélective d'impuretés
• C01B 25/22 - Préparation par réaction de produits contenant un phosphate avec un acide, p. ex. procédé par voie humide
• C01G 43/01 - OxydesHydroxydes

Abrégé

In a preferred embodiment, a process for extracting uranium from wet-process phosphoric acid (WPA), comprises separating uranium from WPA to produce a loaded uranium solution stream and a uranium depleted WPA stream. The loaded uranium solution stream is then contacted by with an ion exchange resin. Uranium species bound to the ion exchange resin are eluted by contacting the resin with a solution comprising anions to produce a loaded uranium eluant stream. The loaded uranium eluant stream is treated to provide a uranium containing product.

Classes IPC  ?

• C22B 60/02 - Obtention du thorium, de l'uranium ou des autres actinides
• C01G 43/00 - Composés de l'uranium

Abrégé

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.

Classes IPC  ?

• C01G 17/00 - Composés du germanium

Abrégé

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.

Classes IPC  ?

• C01G 43/00 - Composés de l'uranium

Abrégé

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.

Classes IPC  ?

• C22B 60/02 - Obtention du thorium, de l'uranium ou des autres actinides
• C01G 43/00 - Composés de l'uranium

Abrégé

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.

Classes IPC  ?

• C01G 17/00 - Composés du germanium