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Strontium and Actinide Separations from High Level Nuclear Waste Solutions Using Monosodium Titanate 2. Actual Waste Testing
Abstract Pretreatment processes at the Savannah River Site will separate 90Sr, alpha‐emitting and radionuclides (i.e., actinides) and 137Cs prior to disposal of the high‐level nuclear waste.
Development of the Next-Generation Caustic-Side Solvent Extraction ( NG-CSSX ) Process for Cesium Removal from High-Level Tank Waste – 11346
This paper describes the chemical performance of the Next-Generation Caustic-Side Solvent Extraction (NG-CSSX) process in its current state of development for removal of cesium from the alkaline
sp carbon chains surrounded by sp(3) carbon double helices: coordination-driven self-assembly of wirelike Pt(CC)(n)Pt moieties that are spanned by two P(CH(2))(m)P linkages.
Low-temperature NMR data suggest that the enantiomeric helical conformations of 3-5 rapidly interconvert in solution, which are the only double-helical molecules that do not feature bonding interactions between the helix strands, or covalent bonds to templates dispersed throughout the strands,or any type of encoding.
A synthetic breakthrough into an unanticipated stability regime: a series of isolable complexes in which C6, C8, C10, C12, C16, C20, C24, and C28 polyynediyl chains span two platinum atoms.
The effect of the chain lengths in PtCxPt upon thermal stabilities, IR nu(C[triple chemical bond]C) patterns, colors, UV/Vis spectra, redox properties (progressively more difficult oxidations), and NMR spectra are analyzed, including implications for the sp carbon allotrope carbyne.
sp carbon chains surrounded by sp(3) carbon double helices: directed syntheses of wirelike Pt(CC)(n)Pt moieties that are spanned by two P(CH(2))(m)P linkages via alkene metathesis.
Crystal structures of complexes with termini-spanning diphosphines show sp3 chains with both double-helical and nonhelical conformations, and highly shielded sp chains.
Development of an Improved Titanate-Based Sorbent for Strontium and Actinide Separations under Strongly Alkaline Conditions
High-level nuclear waste produced from fuel reprocessing operations at the Savannah River Site (SRS) requires pretreatment to remove 134,137Cs, 90Sr, and alpha-emitting radionuclides (i.e.,
Single Stage Contactor Testing Of The Next Generation Solvent Blend
The Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) facility at the Savannah River Site (SRS) is actively pursuing the transition from the current BOBCalixC6 based solvent to the Next
C8 and C12 sp Carbon Chains That Span Two Platinum Atoms: The First Structurally Characterized 1,3,5,7,9,11-Hexayne
Reaction sequences involving trans-(p-tol)(Ar3P)2PtCl (Ar = Ph, p-tol), HC⋮CC⋮CH, HC⋮CSiEt3, and oxidative ⋮CH/HC⋮ cross- or homocoupling (O2, cat. CuCl/TMEDA) give the Cx complexes
Olefin metatheses in metal coordination spheres: novel trans-spanning bidentate and facially-spanning tridentate macrocyclic phosphine complexes
The title reaction is applied to square-planar rhodium and platinum complexes with trans PPh2(CH2)6CHCH2 ligands, and square-planar platinum or octahedral tungsten complexes with trans or facial