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Title: Extractant composition including crown ether and calixarene extractants

Patent ·
OSTI ID:986551
 [1];  [2];  [1];  [3];  [1];  [1];  [4];  [4]
  1. Idaho Falls, ID
  2. Aberdeen, ID
  3. Pocalello, ID
  4. Blackfoot, ID
+ Show Author Affiliations

An extractant composition comprising a mixed extractant solvent consisting of calix[4] arene-bis-(tert-octylbenzo)-crown-6 ("BOBCalixC6"), 4',4',(5')-di-(t-butyldicyclo-hexano)-18-crown-6 ("DtBu18C6"), and at least one modifier dissolved in a diluent. The DtBu18C6 may be present at from approximately 0.01M to approximately 0.4M, such as at from approximately 0.086 M to approximately 0.108 M. The modifier may be 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol ("Cs-7SB") and may be present at from approximately 0.01M to approximately 0.8M. In one embodiment, the mixed extractant solvent includes approximately 0.15M DtBu18C6, approximately 0.007M BOBCalixC6, and approximately 0.75M Cs-7SB modifier dissolved in an isoparaffinic hydrocarbon diluent. The extractant composition further comprises an aqueous phase. The mixed extractant solvent may be used to remove cesium and strontium from the aqueous phase.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC07-99ID13727
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Number(s):
7,524,469
Application Number:
11/859,453; TRN: US201018%%32
OSTI ID:
986551
Country of Publication:
United States
Language:
English

References (26)

Novel Solvent System for Metal Ion Separation: Improved Solvent Extraction of Strontium(II) and Lead(II) as Dicyclohexano-18-Crown-6 Complexes journal September 1999
Surveying the Extraction of Cesium Nitrate by 1,3-Alternatecalix[4]Arene Crown-6 Ethers in 1,2-Dichloroethane journal November 1999
Extraction of strontium from nitric acid solutions by selected crown ethers journal December 1994
Substituent Effects in the Extraction of Cesium from Acidic Nitrate Media With Macrocyclic Polyethers* journal May 1996
EFFECT OF THE INTERFERENCE OF ALKALI AND ALKALINE EARTH METAL IONS ON THE EXTRACTION OF 90 SR FROM ACIDIC NUCLEAR WASTE SOLUTIONS BY 18-CROWN-6 DERIVATIVES journal August 1995
Combined Extraction of Cesium and Strontium from Alkaline Nitrate Solutions journal May 2006
A Robust Alkaline-Side csex Solvent Suitable for Removing Cesium from Savannah River high Level Waste# journal November 2000
Srex: a Newprocess for the Extraction and Recovery of Strontium from Acidic Nuclear Waste Streams journal February 1991
Alkaline-Side Extraction of Cesium from Savannah River Tank Waste Using a Calixarene-Crown Ether Extractant report December 1998
Effect of Diluents on the Extraction of Sr 2+ from HNO 3 Solutions with Dicyclohexano‐18‐crown‐6 journal January 2003
Extraction of Strontium from Acidic Nitrate Media Using a Modified PUREX Solvent∗ journal January 1995
Caustic-Side Solvent Extraction Chemical and Physical Properties Progress in FY 2000 and FY 2001 report April 2002
A Solution for Cesium Removal from High-Salinity Acidic or Alkaline Liquid Waste: the Crown Calix[4]Arenes journal January 1999
Solvent extraction of alkali metals by crown ethers journal December 1988
Complexation of Strontium in the Synergistic Extraction System Dicyclohexano-18-Crown-6, Versatic Acid, Carbon Tetrachloride journal January 1986
Stability Study Of Cs Extraction Solvent journal January 2003
Development of a Solvent Extraction Process for Cesium Removal from srs tank Waste journal June 2001
Demonstration Of The Caustic-side Solvent Extraction Process For The Removal Of 137 Cs From Savannah River Site High Level Waste journal January 2003
Development and testing of a cobalt dicarbollide based solvent extraction process for the separation of cesium and strontium from acidic tank waste journal May 2002
Experimental Verification of Caustic‐Side Solvent Extraction for Removal of Cesium from Tank Waste journal January 2003
Solvatochromic Solvent Polarity Measurements of Alcohol Solvent Modifiers and Correlation with Cesium Extraction Strength1† journal January 2001
Strontium Extraction with a Polymer-Bound 18-Crown-6 Polyether journal November 1993
Development of Process Chemistry for the Removal of Cesium from Acidic Nuclear Waste by Calix[4]arene-crown-6 Ethers book July 2000
Extraction of lead and Strontium from Hazardous Waste Streams by Solvent Extraction with 4',4',(5')-Di-(T-Butyldicyclohexo)-18-Crown-6 journal January 1997
Composition of the Organic Phase Species in the Synergistic Extraction of Sr 2+ by Mixtures of Di(2‐Ethylhexyl) Alkylenediphosphonic Acids and Dicyclohexano‐18‐crown‐6 journal January 2003
Development of Effective Solvent Modifiers for the Solvent Extraction of Cesium from Alkaline High‐Level Tank Waste journal January 2003

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Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
SOLVENT EXTRACTION
CHEMICAL COMPOSITION
CALIXARENES
CESIUM
CROWN ETHERS
HYDROCARBONS
SOLVENTS
STRONTIUM