Process for the production of a yellow cake uranium trioxide from a precipitate of uranium peroxide

摘要

Process for the production of a yellow cake uranium trioxide from a precipitate uranium peroxide. # The present invention provides a process for producing a yellow cake uranium trioxide from a precipitate of uranium peroxide, the precipitate peroxide being in the form of a suspension rich feed uranium, low solids content, the method including the steps of: #a. thickening the feed slurry to produce a thickener underflow with a solids content in the range 15 to 50% w / w and a higher flow deespesador; #b. dehydrating the thickener underflow to produce a solids cake with a solids content of at least 50% and a higher flow of dehydration; and # c. calcining the solids cake to a temperature in the range of 450 to 480 ° C to produce a yellow cake calcined uranium trioxide.