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Title: Method for extracting lanthanides and actinides from acid solutions by modification of Purex solvent

Abstract

A process is described for the recovery of actinide and lanthanide values from aqueous solutions with an extraction solution containing an organic extractant having the formula as shown in a diagram where [phi] is phenyl, R[sup 1] is a straight or branched alkyl or alkoxyalkyl containing from 6 to 12 carbon atoms and R[sup 2] is an alkyl containing from 3 to 6 carbon atoms and phase modifiers in a water-immiscible hydrocarbon diluent. The addition of the extractant to the Purex process extractant, tri-n-butylphosphate in normal paraffin hydrocarbon diluent, will permit the extraction of multivalent lanthanide and actinide values from 0.1 to 12.0 molar acid solutions. 6 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7158710
Patent Number(s):
4574072
Application Number:
PPN: US 6-612199
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 21 May 1984
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; ACTINIDES; SOLVENT EXTRACTION; PROCESS SOLUTIONS; ADDITIVES; PUREX PROCESS; RARE EARTHS; CHEMICAL COMPOSITION; MOLECULAR STRUCTURE; DISPERSIONS; ELEMENTS; EXTRACTION; METALS; MIXTURES; REPROCESSING; SEPARATION PROCESSES; SOLUTIONS; 050800* - Nuclear Fuels- Spent Fuels Reprocessing

Citation Formats

Horwitz, E P, and Kalina, D G. Method for extracting lanthanides and actinides from acid solutions by modification of Purex solvent. United States: N. p., 1986. Web.
Horwitz, E P, & Kalina, D G. Method for extracting lanthanides and actinides from acid solutions by modification of Purex solvent. United States.
Horwitz, E P, and Kalina, D G. Tue . "Method for extracting lanthanides and actinides from acid solutions by modification of Purex solvent". United States.
@article{osti_7158710,
title = {Method for extracting lanthanides and actinides from acid solutions by modification of Purex solvent},
author = {Horwitz, E P and Kalina, D G},
abstractNote = {A process is described for the recovery of actinide and lanthanide values from aqueous solutions with an extraction solution containing an organic extractant having the formula as shown in a diagram where [phi] is phenyl, R[sup 1] is a straight or branched alkyl or alkoxyalkyl containing from 6 to 12 carbon atoms and R[sup 2] is an alkyl containing from 3 to 6 carbon atoms and phase modifiers in a water-immiscible hydrocarbon diluent. The addition of the extractant to the Purex process extractant, tri-n-butylphosphate in normal paraffin hydrocarbon diluent, will permit the extraction of multivalent lanthanide and actinide values from 0.1 to 12.0 molar acid solutions. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {3}
}