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Nuclear Magnetic Resonance and X-ray Photoelectron Spectroscopic Investigation of Lithium Migration in Montmorillonite
Lithium Migration Montmorillonite NMR Spectroscopy X-ray Photoelectron Spectroscopy
2011/12/22
Abstract: When Li-saturated montmorillonite is heated to 200?00 癈, the Li ions migrate from interlayer positions to sites in the layer structure. However, the identity of these sites has not been clea...
Complete Fe-Mg solid solution in lithium niobate and perovskite structures in titanates at high pressures and temperatures
Complete Fe-Mg solid solution lithium niobate perovskite structures titanates high pressures temperatures
2012/4/5
Anewhigh-pressureMgTiO phasewiththelithiumniobatestructure(R3c)hasbeen
roveredfromexperimentsat21GPaand1200C.Phaseswiththelithiumniobate
structurewerealsosynthesizedforintermediatecompositionsbetwee...
Lithium-Bearing Donbassite and Tosudite from Echassieres, Massif Central, France
Donbassite Granite Hydrothermal alteration Infrared spectroscopy Lithium Petrography Tosudite X-ray powder diffraction
2011/11/28
Abstract: Lithium-bearing don bassite and tosudite were found in veins in hydrothermally altered granite (Beauvoir granite) in the northern part of the Massif Central, France. The two minerals are cha...
Charge Reduction, Octahedral Charge, and Lithium Retention in Heated, Li-Saturated Smectites
Alkylammonium exchange Cation-exchange capacity Hofmann-Klemen effect Layer-charge reduction Lithium Octahedral charge
2012/1/11
Reference smectites were examined to determine relationships between Li uptake, cation-exchange capacity (CEC), and octahedral layer charge after Li saturation and heating at 250°C (Hofmann-Klemen eff...
Expandable Phyllosilicate Reactions with Lithium on Heating
Beidellite Lithium saturation Montmorillonite Nontronite Soil clay X-ray powder diffraction
2012/1/12
A method using Li saturation and heating to 250°C to differentiate montmorillonite from beidellite and nontronite has been developed. The test utilizes three washings with 3 M LiCl and two washings wi...
Lithium and Potassium Saturation of Illite/Smectite Clays from Interlaminated Shales and Sandstones
Diagenesis Expandability Illite Interstratification Smectite
2012/2/8
Mixed-layer illite/smectite (I/S) clays in lower Eocene sediments of the Texas Gulf Coast decrease in expandability with depth as found in previous studies of clay diagenesis, but at the same depth th...
Lithium-Bearing Tosudite
Lithium-Bearing Tosudite
2012/2/14
Lithium-bearing tosudite was found from a brittle clayey part of the Tooho “roseki” deposit, Aichi Prefecture, Japan. The chemical composition of the Li bearing tosudite was estimated as SiO2 41·60%, ...
Sodium-Lithium Exchange Equilibria on Vermiculite at 25° and 50°C
Sodium-Lithium Exchange Equilibria Vermiculite
2012/2/20
Sodium-lithium exchange equilibria between dilute aqueous chloride solutions and 0.2–62 µ Transvaal, South African vermiculite were studied at 25° and 50°C using a dialysis technique. The K cont...
Lithium and Potassium Absorption, Dehydroxylation Temperature, and Structural Water Content of Aluminous Smectites
Lithium Potassium Absorption Dehydroxylation Temperature Aluminous
2012/2/20
X-ray analysis of Li+- and K+-saturated samples, differential thermal analysis (DTA), thermal gravimetric analysis (TGA), and chemical analysis of 83 samples enable a distinction to be made between Wy...