Solubility parameter and activity coefficient of HDEHP dimer in select organic diluents by vapor pressure osmometry

Michael Gray, Peter Zalupski, Mikael Nilsson

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

A thorough understanding of the non-ideal behavior of the chemical components utilized in solvent extraction contributes to the success of any large-scale spent nuclear fuel treatment. To address this, our current work uses vapor pressure osmometry to characterize the non-ideal behavior of the solvent extraction agent di-(2-ethylhexyl) phosphoric acid (HDEHP), a common extractant in proposed separation schemes. Solubility parameters were fit to data on HDEHP at four temperatures using models based on Scatchard Hildebrand regular solution theory with Flory Huggins entropic corrections. The results are comparable but not identical to the activity coefficients from prior slope analysis in the literature.

Original languageEnglish
Pages1495-1498
Number of pages4
StatePublished - 2013
EventInternational Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013 - Salt Lake City, UT, United States
Duration: Sep 29 2013Oct 3 2013

Conference

ConferenceInternational Nuclear Fuel Cycle Conference: Nuclear Energy at a Crossroads, GLOBAL 2013
Country/TerritoryUnited States
CitySalt Lake City, UT
Period09/29/1310/3/13

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