Studies of the Behavior of Trivalent Uranium in an Aqueous Solution. III : Extraction from a Hydrochloric Acid Solution by Bis(n-butyl) Orthophosphoric Acid and by Bis-(2-ethylhexyl) Orthophosphoric Acid

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概要

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• The distribution of U(III) between hydrochloric acid solutions and benzene solutions of bis(n-butyl) orthophosphoric acid or cyclohexane solutions of bis(2-ethylhexyl) orthophosphoric acid has been investigated by using the uranium-237 isotope as a tracer. It has been found that the log-log plot of the distribution ratio vs. the concentration of dimeric organophosphoric acids, and that of the distribution ratio vs. the hydrogen ion concentration, always show a good linearity, with a slope of 3. This indicates that the complex-forming reaction is as follows : chemical formula where (HA)_2 represents the dimeric solvent, (HDBP)_2 or (HDEHP)_2. The above results are in agreement with the conclusions reached in the cases of other trivalent actinide and lanthanide elements by other investigators.

• 東北大学の論文

著者

• Sato Akiko

  The Research Institute For Iron Steel And Other Metals

• Suzuki Shin

  The Research Institute For Iron Steel And Other Metals

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