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Abstract— <p>The development of high-intensity extractors operating in the pre-emulsion mode is a promising task in the field of extraction of <i>d</i>- and <i>f</i>-elements. The paper presents a microcontactor in which it is possible to extract 20% REE in 34 s of phase contact from the original amount taken. The influence of the composition of the extraction system, the nature of the solvent and REE, and the initial conditions of the process on the mass-transfer coefficient is established. The dependence of the Sherwood number on the Reynolds and Prandtl numbers is obtained. The results of the work can be useful in the creation of new extractors operating in the pre-emulsion mode.</p>

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Extraction of Rare Earth Elements with D2EHPA Solution Using a Microcontactor

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • E. N. Golubina,
  • N. F. Kizim

摘要

Abstract—

The development of high-intensity extractors operating in the pre-emulsion mode is a promising task in the field of extraction of d- and f-elements. The paper presents a microcontactor in which it is possible to extract 20% REE in 34 s of phase contact from the original amount taken. The influence of the composition of the extraction system, the nature of the solvent and REE, and the initial conditions of the process on the mass-transfer coefficient is established. The dependence of the Sherwood number on the Reynolds and Prandtl numbers is obtained. The results of the work can be useful in the creation of new extractors operating in the pre-emulsion mode.