Canyon solvent cleaning with solid adsorbents. [HM Process solvent (TBP in n-paraffin)]

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6431488

Reif, D J

The HM Process at the Savannah River Plant (SRP) uses 7.5% tributyl phosphate in n-paraffin as an extraction solvent. During use, the solvent is altered due to hydrolysis and radiolysis, forming materials that influence product losses, product decontamination, and separation efficiencies. Laboratory studies to improve online solvent cleaning have shown that carbonate washing, although removing residual solvent activity, does not remove binding ligands that hold fission products in the solvent. Treatment of solvent with a solid adsorbent removes binding ligands and significantly improves recycle solvent performance. Both laboratory work defining a full-scale adsorption process and the use of the process to clean HM Process first cycle solvent are presented.

• Research Organization: Savannah River Lab., Aiken, SC (USA)
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6431488
• Report Number(s): DP-MS-87-9; CONF-870661-5; ON: DE87011244
• Country of Publication: United States
• Language: English

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