DEMONSTRATION OF THE NEXT-GENERATION CAUSTIC-SIDE SOLVENT EXTRACTION SOLVENT WITH 2-CM CENTRIGUGAL CONTRACTORS USING TANK 49H WASTE AND WASTE SIMULANT Metadata

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Title

  • Main Title DEMONSTRATION OF THE NEXT-GENERATION CAUSTIC-SIDE SOLVENT EXTRACTION SOLVENT WITH 2-CM CENTRIGUGAL CONTRACTORS USING TANK 49H WASTE AND WASTE SIMULANT

Creator

  • Author: Pierce, R.
    Creator Type: Personal
  • Author: Peters, T.
    Creator Type: Personal
  • Author: Crowder, M.
    Creator Type: Personal
  • Author: Pak, D.
    Creator Type: Personal
  • Author: Fink, S.
    Creator Type: Personal
  • Author: Blessing, R.
    Creator Type: Personal
  • Author: Washington, A.
    Creator Type: Personal
  • Author: Caldwell, T.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Savannah River Site (S.C.)
    Place of Publication: United States
    Additional Info: SRS

Date

  • Creation: 2011-11-29

Language

  • English

Description

  • Content Description: Researchers successfully demonstrated the chemistry and process equipment of the Caustic-Side Solvent Extraction (CSSX) flowsheet using MaxCalix for the decontamination of high level waste (HLW). The demonstration was completed using a 12-stage, 2-cm centrifugal contactor apparatus at the Savannah River National Laboratory (SRNL). This represents the first CSSX process demonstration of the MaxCalix solvent system with Savannah River Site (SRS) HLW. Two tests lasting 24 and 27 hours processed non-radioactive simulated Tank 49H waste and actual Tank 49H HLW, respectively. A solvent extraction system for removal of cesium from alkaline solutions was developed utilizing a novel solvent invented at the Oak Ridge National Laboratory (ORNL). This solvent consists of a calix[4]arene-crown-6 extractant dissolved in an inert hydrocarbon matrix. A modifier is added to the solvent to enhance the extraction power of the calixarene and to prevent the formation of a third phase. An additional additive is used to improve stripping performance and to mitigate the effects of any surfactants present in the feed stream. The process that deploys this solvent system is known as Caustic Side Solvent Extraction (CSSX). The solvent system has been deployed at the Savannah River Site (SRS) in the Modular CSSX Unit (MCU) since 2008.

Subject

  • Keyword: Removal
  • Keyword: Hydrocarbons
  • Keyword: Flowsheets
  • Keyword: Solvents
  • Keyword: Decontamination
  • Keyword: Wastes
  • Keyword: Extraction Apparatuses
  • Keyword: Contractors
  • STI Subject Categories: 22 General Studies Of Nuclear Reactors
  • Keyword: Savannah River Plant
  • Keyword: Surfactants
  • Keyword: Solvent Extraction
  • Keyword: Chemistry
  • Keyword: Cesium
  • Keyword: Ornl
  • Keyword: Calixarenes
  • Keyword: Additives
  • Keyword: Performance
  • Keyword: Tanks

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: SRNL-STI-2011-00589R1
  • Grant Number: DE-AC09-08SR22470
  • DOI: 10.2172/1032066
  • Office of Scientific & Technical Information Report Number: 1032066
  • Archival Resource Key: ark:/67531/metadc839642

Note

  • Display Note: available