E3S Web Conf.
Volume 18, 2017Mineral Engineering Conference MEC2017
|Number of page(s)||11|
|Published online||04 October 2017|
The influence of ultrasounds on the process of uranium desorption
E1Research & Development National Institute for Metals and Radioactive Resources, 70 Carol I Bvd., 020917, Bucharest, Romania
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In the present paper, we have studied the intensification of the desorption process of the complex anions of uranium U(VI), from ion exchange resins under the action of the ultrasonic field. The dynamics of uranium desorption from the anionic resins Purolite A600U/3472 and PM 611 was analyzed, both in standard conditions and with ultrasounds. The use of ultrasounds leads to the substantial growth of desorption kinetics and of the uranium recovery degree. The tests for stability of the resin grains size, mechanical resistance and the capacity of loading with uranium, after the repeated action of the ultrasounds field, emphasized the physical-chemical stability of resins used in the experiment (loading capacity of untreated resin 30.36 mgU/g resin and treated in continuous ultrasonic field 30.85 mgU/g resin).
© The Authors, published by EDP Sciences, 2017
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