Extraction of Uranium From Wet-Process Phosphoric Acid

摘要

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.

主权项

1. A system for extracting uranium from wet-process phosphoric acid (WPA), the system comprising:
a first ion exchange resin positioned to receive uranium laden WPA and bind uranium species from the uranium laden WPA thereon to form a uranium depleted WPA stream; an oxidant stream positioned to feed an oxidant onto the first ion exchange resin for oxidizing the uranium species thereon; an ammonium carbonate stream positioned to feed ammonium carbonate onto the first ion exchange resin after the uranium species thereon are oxidized to elute the first ion exchange resin and form a uranium enriched ammonium carbonate stream; a second ion exchange resin positioned to receive the uranium enriched ammonium carbonate stream and bind uranium species in the uranium enriched ammonium carbonate stream thereto; and an anion solution stream positioned to feed a solution comprising anions onto the second ion exchange resin to and elute the second ion exchange resin to form a loaded uranium eluant stream.