Nuclear Magnetic Resonance Studies of Aluminosilicate Gels Prepared in High-Alkaline and Salt-Concentrated Solutions

Journal Article · Mon Jan 10 23:00:00 EST 2005 · Journal of Non-crystalline Solids, 351(43-45):3435-3442

DOI:https://doi.org/10.1016/j.jnoncrysol.2005.09.006· OSTI ID:993671

Wang, Li Q; Mattigod, Shas V; Parker, Kent E; Hobbs, David T; McCready, David E

We have examined the formation of aluminosilicate in high alkaline and salt concentrated solutions characteristic of nuclear tank wastes. Information on the mechanism and kinetics of the phase formation under hydrothermal conditions was obtained by characterization the structures of gel phases as a function of time and composition using multinuclear NMR techniques in combination with x-ray diffraction. This work offers a new insight into the aluminum and aluminosilicate chemistry in simulated nuclear tank wastes.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 993671
• Report Number(s): PNNL-SA-40897; KP1302000
• Journal Information: Journal of Non-crystalline Solids, 351(43-45):3435-3442, Journal Name: Journal of Non-crystalline Solids, 351(43-45):3435-3442
• Country of Publication: United States
• Language: English