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Title: Process for the extraction of strontium from acidic solutions

The invention is a process for selectively extracting strontium values from aqueous nitric acid waste solutions containing these and other fission product values. The extractant solution is a macrocyclic polyether in an aliphatic hydrocarbon diluent containing a phase modifier. The process will selectively extract strontium values from nitric acid solutions which are up to 6 molar in nitric acid. 4 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
7249315
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-128695
Patent Number(s):
US 5344623; A
Application Number:
PPN: US 8-076881
Contract Number:
W-31109-ENG-38
Resource Relation:
Patent File Date: 15 Jun 1993
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; POLYETHYLENE GLYCOLS; SOLVENT PROPERTIES; STRONTIUM; SOLVENT EXTRACTION; NITRIC ACID; RADIOACTIVE WASTE PROCESSING; ALCOHOLS; ALKALINE EARTH METALS; ELEMENTS; EXTRACTION; GLYCOLS; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; INORGANIC ACIDS; MANAGEMENT; METALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; PROCESSING; RADIOACTIVE WASTE MANAGEMENT; SEPARATION PROCESSES; WASTE MANAGEMENT; WASTE PROCESSING; 052001* - Nuclear Fuels- Waste Processing