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Abstract <p>The extraction of REE(III) ions from nitric acid solutions using mixtures of bis(diphenylphosphine)quinoxaline dioxide and dinonylnaphthalenesulfonic acid in organic solvents was studied. The extraction of metal ions with mixtures of these reagents is accompanied by a significant synergistic effect. The stoichiometry of the extracted complexes was determined. The influence of the extractant structure, the organic diluent nature, and the HNO<sub>3</sub> concentration in the aqueous phase on the efficiency of metal ions extraction into the organic phase was considered.</p>

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Extraction of REE(III) with Mixtures of Bis(diphenylphosphine)quinoxaline Dioxide and Dinonylnaphthalenesulfonic Acid from Nitric Acid Solutions

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • A. N. Turanov,
  • V. K. Karandashev,
  • O. I. Artyushin,
  • E. V. Smirnova,
  • V. K. Brel

摘要

Abstract

The extraction of REE(III) ions from nitric acid solutions using mixtures of bis(diphenylphosphine)quinoxaline dioxide and dinonylnaphthalenesulfonic acid in organic solvents was studied. The extraction of metal ions with mixtures of these reagents is accompanied by a significant synergistic effect. The stoichiometry of the extracted complexes was determined. The influence of the extractant structure, the organic diluent nature, and the HNO3 concentration in the aqueous phase on the efficiency of metal ions extraction into the organic phase was considered.