Effect of 239Pu α-radiation on its extraction from nitric acid solutions with a 30% solution of tri-n-butyl phosphate in Isopar-M View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2016-09

AUTHORS

Z. V. Dzhivanova, G. P. Tkhorzhnitskii, E. V. Belova, B. F. Myasoedov

ABSTRACT

Extraction of 239Pu from 4 M НNО3 with an HNO3-saturated 30% solution of tri-n-butyl phosphate (TBP) in Isopar-M in the cyclic mode was studied. As a result of four-month contact with an aqueous НNО3 solution containing 0.11 M Pu(IV), the organic phase absorbed the total α-radiation dose of 380 kGy. The fraction of the residual Pu in the organic phase after stripping increases by a factor of 5–7 as the absorbed dose is increased from 32 to 263 kGy. The residual concentration of Pu in the organic phase after 45–50 stripping cycles (which corresponds to the irradiation dose with accelerated electrons of 120–150 kGy) increases by a factor of 3–4. The Pu distribution ratio in the extraction step in the cyclic mode varies only slightly. More... »

PAGES

480-485

Journal

TITLE

Radiochemistry

ISSUE

5

VOLUME

58

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1066362216050064

DOI

http://dx.doi.org/10.1134/s1066362216050064

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1021915422


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