TH506A - A process for purifying uranium from alkyl pyrophosphoric acid. - Google Patents

Abstract

Process for recovering tetravalent uranium from wet-processed phosphoric acid. Using an acidic extractor Alkyl pyrophosphoric Or a similar substance, when extracting tetravalent uranium from a wet-processed acid, purifying the iron from an extractor containing the extraction In the oxalic acid cleansing solution Then wash Tetravalent uranium is extracted from the extractor into an oxalate rinsing solution. Oxalate cleansing solution is Aqueous solution of alkali metal or ammonium oxalate extractor. Without being extracted to be returned to contact with the acid produced With the new wet process, uranium oxidizes and then falls. Sediment in oxalate rinsing solution Precipitated solids were Separated from the solution, uranium was cured to produce UO3.

Claims (1)

1. A process for purifying uranium from an organic extractor with extracts. Which consists of a coherent extractor High to tetravalent uranium, dissolved in diluents. Organics that can be considered not mixed with water, such organic extracts Contains tetravalent uranium. The aforementioned processes together By washing the organic extract with a solution Wash, consisting of an aqueous solution of alkali metal or ammonium oxalate, to purify tetravalent uranium from the extractor. The organic matter in the cleaning solution.