SINGLE STAGE PURIFICATION FOR URANIUM REFINING

摘要

A process for refining yellowcake to produce nuclear grade uranium using a single step precipitation route for the simultaneous removal of heavy metals, boron and other rare earth metals comprising dissolving the yellowcake in nitric acid under mild agitation and adding hydrogen peroxide at pre-defined pH and temperature to selectively precipitate uranium peroxide hydrate. Also described is a process for producing nuclear grade uranium starting from uranium ore utilizing the above process.