Results obtained in a study of the influence exerted by the vibrational treatment in the dynamic interfacial layer on the extraction of rare-earth elements with solutions of di-(2-ethylhexyl)phosphoric acid in a diluent in a flow-through system are presented. It was shown that the coefficient of extraction acceleration under a local vibrational treatment of the dynamic interfacial layer is smaller than that in the static system and is determined by the nature of an element being extracted and a solvent, frequency and amplitude of oscillations of the vibration element, and fluid flow rate. The degree of extraction of rare-earth elements in a certain time is noticeably higher and can reach a double excess if there is a local vibrational treatment of the dynamic interfacial layer. In this case, the accumulation of a lanthanide in the dynamic interfacial layer is substantially lower, and it does not exceed 10% of the total amount of rare-earth elements in the system.
Russian Journal of Applied Chemistry – Springer Journals
Published: Feb 24, 2017
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