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Название Research studying of ultrasonic effects on ion-exchange processes in uranium production by the in-situ leaching method
DOI 10.17580/tsm.2020.04.06
Автор Kononov A. V., Goncharenko S. N., Assanov D. A., Maslennikov O. O.
Информация об авторе

D. Serikbayev East Kazakhstan State Technical University, Ust-Kamenogorsk, Republic of Kazakhstan:

A. V. Kononov, PhD-student, e-mail: a.kononov@iht.kazatomprom.kz
D. A. Assanov, Senior Researcher, PhD


National University of Science and Technology “MISiS”, Moscow, Russian Federation:

S. N. Goncharenko, Professor, Doctor of Technical Sciences


RSE “Kazakhstan Mint” of the National Bank of the Republic of Kazakhstan, Ust-Kamenogorsk, Republic of Kazakhstan:
O. O. Maslennikov, Head of Division, PhD


Until today, intensification of ion exchange processes (sorption, desorption, ion washing) has been a pressing problem in the production of commodity desorbates. This article presents the materials of research studying of ultrasonic effects on ion-exchange processes in uranium production by the In-Situ Leaching method. The obvious advantages of the ultrasonic method of intensification of ion exchange processes are that it does not use rotating elements inside the apparatus, it is not necessary to stop the processes taking place in mass exchange technological vehicles, their integrity and tightness are not impaired. In order to research studying and evaluate the efficiency of intensification of ion exchange processes by ultrasonic application, in the workshop for the processing of productive solutions at one of the mines of JSC “NAC “Kazatomprom”, works were carried out to intensify the processes of ion washing and uranium desorption from ionite by ultrasonic application. The effectiveness of ultrasonic exposure was evaluated based on the results of analysis of average daily accumulation samples of ionite and solutions taken in parallel from two columns operating in the same modes. At the same time the column with working ultrasonic was experimental, and without ultrasonic – control. The use of ultrasonic effects on desorption resulted in a 21.7% more uranium in commodity desorbate. At the same time content of impurities in commodity desorbate relative to uranium was reduced: iron by 77.1% and phosphorus by 46.6%. The use of ultrasonic action on the processes of head and tail washing also made it possible to effectively purify ionite from a number of harmful impurities (silicon, phosphorus, iron) at the corresponding stages of the process and to obtain as a result a cleaner and more uranium-saturated commodity desorbate.

Ключевые слова Ion exchange, commodity desorbate, ultrasonic oscillations, implosion, cavitation, diffusion, intensification, mass-exchange processes, washing out, sorption, desorption, denitration
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