Fundamental Chemistry of U and Pu in the TBP-Dodecane-Nitric Acid System

Authors

Kenneth Czerwinski, University of Nevada, Las VegasFollow
Byron Bennett, University of Nevada, Las Vegas

Document Type

Annual Report

Publication Date

2006

First page number:

56

Last page number:

57

Abstract

The research objectives of this project are as follows:

• To determine the influence of nitrate on the speciation of U and Pu in the TBP-dodecane-nitric acid system. The aqueous and organic speciation of U and Pu are examined as a function of the nitric acid concentration, nitrate concentration (by the addition of NaNO₃), actinide ion concentration, temperature, and time.
• To determine the speciation of U and Pu with AHA in the presence and absence of TBP-dodecane organic phase. The aqueous and organic speciation of U and Pu are evaluated as a function of AHA concentration, metal ion concentration, metal ion redox state, pH, and temperature. Experiments will initially examine the aqueous phase then examine the two phase system.
• To incorporate thermodynamic and kinetic data into existing modeling codes.

Keywords

Nitric acid; Plutonium; Radioactive wastes – Purification; Separation (Technology); Speciation (Chemistry); Tributyl phosphate; Uranium

Controlled Subject

Nitric acid; Radioactive wastes--Purification; Tributyl phosphate

Disciplines

Analytical Chemistry | Chemistry | Oil, Gas, and Energy | Physical Chemistry

File Format

pdf

File Size

154 KB

Language

English

Rights

COPYRIGHT UNDETERMINED. For more information about this rights statement, please visit http://rightsstatements.org/vocab/UND/1.0/

Repository Citation

Czerwinski, K., Bennett, B. (2006). Fundamental Chemistry of U and Pu in the TBP-Dodecane-Nitric Acid System. 56-57.
Available at: https://digitalscholarship.unlv.edu/hrc_trp_separations/91