Above-Extreme Extraction Mode in the Purex Process: 1. Calculation of the Pu and U Distribution in the Head Extractor View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2001-11

AUTHORS

Yu. S. Fedorov, B. Ya. Zilberman, E. A. Puzikov, E. N. Mishin

ABSTRACT

Accumulation of Pu(IV) in head extractors of the mixer-settler type as applied to two different flowsheets of NPP spent fuel reprocessing was simulated under dynamic and steady-state conditions using a mathematical model of extraction. Comparison of the calculations showed that the maximal accumulation of Pu in the head extractor is independent of the calculation procedure and is determined by the features of the extractor flowsheet. However, dangerous accumulation of Pu according to calculations for steady-state conditions (extreme mode of extraction) occurs at smaller deviations of the flow rates from the nominal values, as compared to calculations for the dynamic conditions (above-extreme extraction mode). Accumulation of Pu to high concentrations under steady-state conditions requires a longer time to attain the equilibrium, whereas under dynamic conditions Pu is accumulated considerably faster. More... »

PAGES

562-568

References to SciGraph publications

Journal

TITLE

Radiochemistry

ISSUE

6

VOLUME

43

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1014899506986

DOI

http://dx.doi.org/10.1023/a:1014899506986

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1016967317


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