Patent ID: 8182773
Filing Date: 2012-05-22
Classification: B01D,G21C,G21F,Y02E,Y02W

Abstract:
1. A process for separating a chemical element from uranium(VI) starting from a nitric acid aqueous phase A 1 , in an extraction cycle for the uranium comprising: a) a uranium(VI) extraction step, in which an aqueous phase flows, with a flow rate D b) a step for washing the organic phase obtained after step a) with a nitric acid aqueous phase A in which the first and second extractors are connected to one another in such a manner that the aqueous phase flowing in the first extractor is formed by nitric acid aqueous phase A in which the chemical element is present in nitric acid aqueous phase A said process being characterized in that step a) comprises drawing-off a part of the aqueous phase flowing in the first extractor, at the accumulation peak of the chemical element in the organic phase, or upstream, relative to the direction of flow of the organic phase, of said accumulation peak.