Solvent Extraction Batch Distribution Coefficients with Savannah River Site Dissolved Salt Cake

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Researchers characterized high-level waste derived from dissolved salt cake from the Savannah River Site (SRS) tank farm and measured the cesium distribution coefficients (DCs) for extraction, scrub, and stripping steps of the caustic-side solvent extraction (CSSX) flowsheet. The measurements used two SRS high-level waste samples derived entirely or in part from salt cake. The chemical compositions of both samples are reported. Dissolved salt cake waste contained less Cs-137 and more dianions than is typical of supernate samples. Extraction, scrub, and strip DCs values for both samples exceeded process requirements and agreed well with model predictions. The results indicate no significant ... continued below

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Walker, D.D. May 22, 2002.

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Description

Researchers characterized high-level waste derived from dissolved salt cake from the Savannah River Site (SRS) tank farm and measured the cesium distribution coefficients (DCs) for extraction, scrub, and stripping steps of the caustic-side solvent extraction (CSSX) flowsheet. The measurements used two SRS high-level waste samples derived entirely or in part from salt cake. The chemical compositions of both samples are reported. Dissolved salt cake waste contained less Cs-137 and more dianions than is typical of supernate samples. Extraction, scrub, and strip DCs values for both samples exceeded process requirements and agreed well with model predictions. The results indicate no significant problems processing dissolved salt cake compared to supernate. During the course of testing, researchers observed sorption of cesium on glass sample vials containing strip solutions. The problem was detected in the material balance calculated for each organic/aqueous contact. Methods and recommendations for avoiding this problem are discussed.

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  • Other Information: PBD: 22 May 2002

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  • Report No.: WSRC-TR-2001-00533, Rev. 1
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/799445 | External Link
  • Office of Scientific & Technical Information Report Number: 799445
  • Archival Resource Key: ark:/67531/metadc734337

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  • May 22, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • May 5, 2016, 2:43 p.m.

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Walker, D.D. Solvent Extraction Batch Distribution Coefficients with Savannah River Site Dissolved Salt Cake, report, May 22, 2002; South Carolina. (digital.library.unt.edu/ark:/67531/metadc734337/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.