Manohar, Smitha; Sharma, J. N.; Shah, B. V.; Wattal, P. K. published the artcile< Process development for bulk separation of trivalent actinides and lanthanides from radioactive high-level liquid waste>, Recommanded Product: 2-Chloro-N,N-diisobutylacetamide, the main research area is actinide lanthanide solvent extraction radioactive liquid waste.
Inhouse R and D studies resulted in the development of processes for the bulk separation of trivalent actinides and lanthanides from radioactive high-level liquid waste. Synthesis of solvents, namely, n-octyl (phenyl)-N,N-di-iso-Bu carbamoyl Me phosphine oxide and diglycolamide-based tetra (2-ethylhexyl) diglycolamide (TEHDGA), at the required purity was carried out, and a suitable process for their resp. use in actual application was developed. Inactive scale engineering runs comprised of simultaneous extraction and stripping operations were carried out to establish the process on an engineering scale, including reuse of the solvent system. The composition of surrogate high-level waste (HLW) used at engineering-scale studies corresponds to 1st-cycle raffinate from reprocessing of long-cooled pressurized D2O reactor fuel with a burnup of 6500 MWd/ton. Since trivalent lanthanides and actinides exhibits similar extraction behavior at higher acidity, Ce and La were only used in making surrogate HLW to represent all the trivalent lanthanides and actinides. Indigenously developed mixer-settlers using a passive system of mixing were used for these runs. Over a period of ∼10 h, ∼ 300 e of surrogate HLW solutions were contacted with solvent. The results of such repeated trials showed near-total removal of Ce and La (>99.8% and 97%, resp.) at aqueous-to-organic ratio of 2.5:1 for a TEHDGA system. As the distribution coefficient values for trivalent actinide (241Am) are significantly higher than those for trivalent lanthanides for both of the solvent systems under consideration, it can be inferred that separation of trivalent actinides along with lanthanides could be feasible using these solvent systems.
Nuclear Science and Engineering published new progress about Actinides Role: REM (Removal or Disposal), PROC (Process). 5326-82-9 belongs to class amides-buliding-blocks, and the molecular formula is C10H20ClNO, Recommanded Product: 2-Chloro-N,N-diisobutylacetamide.
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics