Extraction of cesium and strontium from nuclear waste

Davis, M W; Bowers, C B

Title: Extraction of cesium and strontium from nuclear waste

Full Record
Other Related Research

Abstract

Cesium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4[prime](5) [1-hydroxy-2-ethylhexyl]benzo 18-crown-6 compound and a cation exchanger in a matrix solution. Strontium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4[prime](5[prime]) [1-hydroxyheptyl]cyclohexo 18-crown-6 compound, and a cation exchanger in a matrix solution. 3 figs.

Inventors:: Davis, Jr, M W; Bowers, Jr, C B

Issue Date:: 1988-06-07

Research Org.:: Univ. of South Carolina, Columbia, SC (United States)

OSTI Identifier:: 7023986

Patent Number(s):: 4749518

Application Number:: PPN: US 6-763052

Assignee:: Univ. of South Carolina, Columbia, SC (United States)

DOE Contract Number:: AS09-81SR10714

Resource Type:: Patent

Resource Relation:: Patent File Date: 6 Aug 1985

Country of Publication:: United States

Language:: English

Subject:: 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CESIUM; SOLVENT EXTRACTION; RADIOACTIVE WASTES; STRONTIUM; CHEMICAL COMPOSITION; ION EXCHANGE; ORGANIC SOLVENTS; RADIOACTIVE WASTE PROCESSING; ALKALI METALS; ALKALINE EARTH METALS; ELEMENTS; EXTRACTION; MANAGEMENT; MATERIALS; METALS; PROCESSING; RADIOACTIVE MATERIALS; RADIOACTIVE WASTE MANAGEMENT; SEPARATION PROCESSES; SOLVENTS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; 052001* - Nuclear Fuels- Waste Processing

Citation Formats


                    Davis, Jr, M W, and Bowers, Jr, C B. Extraction of cesium and strontium from nuclear waste.  United States: N. p., 1988. 
        Web.

Copy to clipboard


                    Davis, Jr, M W, & Bowers, Jr, C B. Extraction of cesium and strontium from nuclear waste.  United States.

Copy to clipboard


                    Davis, Jr, M W, and Bowers, Jr, C B. Tue .  
        "Extraction of cesium and strontium from nuclear waste".  United States.

Copy to clipboard


                    
@article{osti_7023986,

  title        = {Extraction of cesium and strontium from nuclear waste},

  author       = {Davis, Jr, M W and Bowers, Jr, C B},

  abstractNote = {Cesium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4[prime](5) [1-hydroxy-2-ethylhexyl]benzo 18-crown-6 compound and a cation exchanger in a matrix solution. Strontium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4[prime](5[prime]) [1-hydroxyheptyl]cyclohexo 18-crown-6 compound, and a cation exchanger in a matrix solution. 3 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1988},

  month        = {6}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Extraction of cesium and strontium from nuclear waste

Patent Davis, Jr., Milton W. (Lexington, SC); Bowers, Jr., Charles B. (Columbia, SC)

Cesium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4'(5) [1-hydroxy-2-ethylhexyl]benzo 18-crown-6 compound and a cation exchanger in a matrix solution. Strontium is extracted from acidified nuclear waste by contacting the waste with a bis 4,4'(5') [1-hydroxyheptyl]cyclohexo 18-crown-6 compound, and a cation exchanger in a matrix solution.
Full Text Available
Extraction processes and solvents for recovery of cesium, strontium, rare earth elements, technetium and actinides from liquid radioactive waste

Patent Zaitsev, Boris N [St. Petersburg, RU]; Esimantovskiy, Vyacheslav M [St. Petersburg, RU]; Lazarev, Leonard N [St. Petersburg, RU]; ...

Cesium and strontium are extracted from aqueous acidic radioactive waste containing rare earth elements, technetium and actinides, by contacting the waste with a composition of a complex organoboron compound and polyethylene glycol in an organofluorine diluent mixture. In a preferred embodiment the complex organoboron compound is chlorinated cobalt dicarbollide, the polyethylene glycol has the formula RC.sub.6 H.sub.4 (OCH.sub.2 CH.sub.2).sub.n OH, and the organofluorine diluent is a mixture of bis-tetrafluoropropyl ether of diethylene glycol with at least one of bis-tetrafluoropropyl ether of ethylene glycol and bis-tetrafluoropropyl formal. The rare earths, technetium and the actinides (especially uranium, plutonium and americium), are extractedmore » « less
Full Text Available
Extractant compositions for co-extracting cesium and strontium, a method of separating cesium and strontium from an aqueous feed, and calixarene compounds

Patent Peterman, Dean R [Idaho Falls, ID]; Meikrantz, David H [Idaho Falls, ID]; Law, Jack D [Pocatello, ID]; ...

A mixed extractant solvent that includes at least one dialkyloxycalix[4]arenebenzocrown-6 compound, 4',4',(5')-di-(t-butyldicyclohexano)-18-crown-6, at least one modifier, and, optionally, a diluent. The dialkyloxycalix[4]arenebenzocrown-6 compound is 1,3-alternate-25,27-di(octyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(decyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(dodecyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(2-ethylhexyl-1-oxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(3,7-dimethyloctyl-1-oxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(4-butyloctyl-1-oxy)calix[4]arenebenzocrown-6, or combinations thereof. The modifier is a primary alcohol. A method of separating cesium and strontium from an aqueous feed is also disclosed, as are dialkyloxycalix[4]arenebenzocrown-6 compounds and an alcohol modifier.
Full Text Available
Extraction of cesium and strontium from acidic high activity nuclear waste using a Purex process compatible organic extractant

Journal Article Shuler, R G; Bowers, Jr, C B; Smith, Jr, J E; ... - Solvent Extr. Ion Exch.; (United States)

A summary is presented of research to define solvent extraction process chemistry that is compatible with the Purex process for reprocessing of commercial nuclear waste and specific for the economic recovery of useful fission products. Military nuclear waste could also be treated before neutralization. Purex process compatible organic systems which selectively and reversibly extract cesium and strontium from synthetic mixed fission product solutions containing 3M HNO/sub 3/ have been developed. This advance makes the development of continuous solvent extraction processes for their recovery more likely. The matrix solution from the Purex process consists of tributyl phosphate (TBP) and kerosene. Formore » « less
DOI: https://doi.org/10.1080/07366298508918529
Extraction of cesium, strontium and the platinium group metals from acidic high activity nuclear waste using a Purex process compatible organic extractant. Final report, December 15, 1980-August 15, 1983

Technical Report Davis, Jr, M W; Van Brunt, V

Purex process compatible organic systems which selectively and reversibly extract cesium, strontium, and palladium from synthetic mixed fission product solutions containing 3M HNO/sub 3/ have been developed. This advance makes the development of continuous solvent extraction processes for their recovery more likely. The most favorable cesium and strontium complexing solutions have been tested for radiation stability to 10/sup 7/ rad using a 0.4 x 10/sup 7/ rad/h /sup 60/Co source. The distribution coefficients dropped somewhat but remained above unity. For cesium the complexing organic solution is 5 vol % (0.1M) NNS, 27 vol % TBP and 68 vol % kerosenemore » « less

Similar Records