Caustic-Side Solvent Extraction: Chemical and Physical Properties of the Optimized Solvent

Delmau, Lætitia H.

doi:10.2172/814610

Cited by 48 publications

(72 citation statements)

References 9 publications

(76 reference statements)

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“…The Next Generation Caustic Side Solvent Extraction (NG-CSSX) process was developed in order to improve the waste decontamination factor (DF) and waste throughput in the Caustic Side Solvent Exchange (CSSX) process [7][8][9]. To improve the cesium DF, a solvent containing 50 mM MaxCalix, 0.5 M of modifier Cs-7B, 3 mM of guanidine suppressor in Isopar  L was investigated [10].…”

Section: Cpc Process Impact For Tidg Based Ngs and Blended Solventmentioning

confidence: 99%

Impact of the next generation solvent on DWPF CPC processing

Newell¹

2013

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Section: Cpc Process Impact For Tidg Based Ngs and Blended Solventmentioning

confidence: 99%

Impact of the next generation solvent on DWPF CPC processing

Newell¹

2013

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“…ANL used 2-cm centrifugal contactors for the initial testing 2 , which was successful. An optimized solvent was subsequently developed by ORNL to decrease the probability of third phase formation and allow an increase in the extractant concentration 3 .…”

Section: Initial Process Developmentmentioning

confidence: 99%

Scale-up of Caustic-Side Solvent Extraction Process for Removal of Cesium at Savannah River Site

Geeting

Brass

Brown

et al. 2008

Separation Science and Technology

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SUMMARYIn 2004, the Department of Energy (DOE) directed Westinghouse Savannah River Company (WSRC) to develop a Caustic-Side Solvent Extraction (CSSX) process at the Savannah River Site (SRS) capable of removing cesium from 1 million gallons a year of dissolved salt solution. This facility would provide interim processing for cesium containing salt solution until the Salt Waste Processing Facility (SWPF) comes on-line.The DOE design inputs 1 were to utilize contactors similar in design to those to be used in the SWPF, assume class C waste with less than 0.5 Ci/gal Cs-137, achieve a Decontamination Factor (DF) greater than 12, include the ability to clean the contactors in place, and assume an operating life of three years. WSRC embarked on a design, test, and build program to achieve these criteria as described in the following text. All DOE design criteria have been met or exceeded by WSRC.

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“…10 The curing saltstone samples were vented through a carbon tube located at the end of the vessel outlet tube immediately after a water trap. The carbon tube is a glass tube having two activated carbon beds separated by an inert filter.…”

Section: Samplingmentioning

confidence: 99%

“…10 The collected sample tubes were opened and the two carbon beds were separated into individual vials. One labeled sample #-BK and the other labeled sample #-FR.…”

Section: Isopar ® L Measurementmentioning

confidence: 99%