Solvent Hold Tank Sample Results For MCU-15-750-751-752-: June Monthly Sample

Fondeur, F.¹  Taylor-Pashow, K.¹ 

[1] Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

关键词: SOLVENTS;    TANKS;    CONCENTRATION RATIO;    NUCLEAR MAGNETIC RESONANCE;    SAVANNAH RIVER PLANT;    HYDROGEN;    IMPURITIES;    MERCURY;    ABUNDANCE;    OPERATION;    QUANTITATIVE CHEMICAL ANALYSIS;   

DOI  :  10.2172/1223192
RP-ID  :  SRNL-STI--2015-00469
PID  :  OSTI ID: 1223192
Others  :  TRN: US1500432

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

Savannah River National Laboratory (SRNL) received one set of Solvent Hold Tank (SHT) samples (MCU-15-750, MCU-15-751, and MCU-15-752), pulled on 06/22/2015 for analysis. The samples were combined and analyzed for composition. Analysis of the composite sample MCU-15-750-751-752 indicated a low concentration (~ 49 % of nominal) of the suppressor (TiDG) and slightly lower than nominal concentrations of the extractant (MaxCalix), and of the modifier (Cs-7SB) in the solvent. This analysis confirms the addition of TiDG, MaxCalix, and modifier to the solvent in February 2015. Based on the current monthly sample, the levels of TiDG, MaxCalix, and modifier are sufficient for continuing operation without adding a trim at this time but it is recommended that an addition of TiDG, modifier and Isopar???L should be made in the near future. No impurities above the 1000 ppm level were found in this solvent by the Semi-Volatile Organic Analysis (SVOA). No impurities were observed in the Hydrogen Nuclear Magnetic Resonance (HNMR). In addition, up to 13.9 micrograms of mercury per gram of solvent (or 11.5 ??g/mL) was detected in this sample. The laboratory will continue to monitor the quality of the solvent in particular for any new impurities or degradation of the solvent components.