Adsorption Method for the Separation of Protactinium Isotopes
1967 Volume 16 Issue 12 Pages 645-651
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1967 Volume 16 Issue 12 Pages 645-651
A procedure, based on the selective adsorption of radionuclide on glass, has been worked out for the separation of Pa-233 from irradiated thorium and for the removal of Pa-231 target from U-232. The behavior of protactinium towards adsorption from higher concentrated nitric acid solution was examined by using the batch method. Adsorbents used were quartz sand, glass powder and silica gel.
Carrier-free Pa-233 has been successfully prepared from irradiated thorium in 10M HNO3 solution by adsorption on column containing glass powder, followed by the elution with s M HCl-0.015M HF solution.
By means of the similar procedure, U-232 produced by irradiation of Pa-231 has been obtained effectively from the highly α-radioactive target materials.
