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Dielectric Properties of Montmorillonites Saturated by Bivalent Cations
Montmorillonites Bivalent Cations Dielectric Properties
2012/2/14
This study deals with the analysis of dielectric measurements made on montmorillonites saturated by bivalent cations. These measurements are performed between −150°C and + 30°C at frequencies ra...
The Relationship between Structural Properties of Metal-Tris (Ethylenediamine) Montmorillonite and their Behavior as Gas Chromatographic Packing Materials
Structural Properties Metal-Tris (Ethylenediamine) Montmorillonite Gas Chromatographic
2012/2/13
The tris(ethylenediamine) complex cations of chromium(III), cobalt(III), and copper(II) were exchanged onto sodium montmorillonite. The resulting cation exchanged clays were dried, ground, sieved and ...
A Study of the Morphology and Properties of Aryl and Alkyl Ammonium Montmorillonites: An Electron Microscope Investigation
Properties Aryl Alkyl Ammonium Montmorillonites Electron Microscope Investigation
2012/2/13
The effect of exchanging selected aryl and alkyl ammonium cations for sodium ions on the morphology and the hydrophobicity of a sodium montmorillonite was studied. It was found that the morphology of ...
THE RELATIONSHIP BETWEEN STRUCTURAL PROPERTIES OF METAL-TRIS (ETHYLENEDIAMINE) MONTMORILLONITE AND THEIR BEHAVIOR AS GAS CHROMATOGRAPHIC PACKING MATERIALS
RELATIONSHIP METAL-TRIS (ETHYLENEDIAMINE) MONTMORILLONITE THEIR BEHAVIOR GAS CHROMATOGRAPHIC
2011/11/15
The tris(ethylenediamine) complex cations of chromium(III), cobalt(III), and copper(II) were exchanged onto sodium montmorillonite. The resulting cation exchanged clays were dried, ground, sieved and ...
Similarities of Rehydration and Rehydroxylation Properties of Rectorite and 2M Clay Micas
Similarities of Rehydration Rehydroxylation Properties Clay Micas
2011/11/18
Abstract: Various dehydroxylated micas and rectorites were acid-treated. Rectorite-type mixed-layer mineral was formed from 2M1 and 2M2 mica and random mixed-layer mineral from 1M and 1Md mica. Rector...
Properties of ‘Swelling’ Chlorite in Some Mesozoic Formations of California
Swelling Mesozoic Formations of California
2011/11/18
Abstract: Slaty strata and their weathering products comprise a large portion of the geologic formations of the western foothills in the Sierra Nevada, Mid-Northern California. The weathering products...
Properties of Reduced Charge Montmorillonites: Hydrated Cu(II) Ions as a Spectroscopic Probe
Montmorillonites Hydrated Cu(II) Ions Spectroscopic Probe
2011/11/18
Abstract: A series of Cu(II) reduced charge montmorillonites (RCM) of varying charge reduction has been prepared by exchange of the parent Li(I)-Na(I) mineral with CuCl2 in 95 per cent ethanol solutio...
Mineralogy and Cation Exchange Properties of Libby Vermiculite Separates as Affected by Particle-Size Reduction
Mineralogy Cation Exchange Properties Libby Vermiculite Particle-Size Reduction
2012/2/15
A vermiculite (Libby, Montana) sample obtained from the Zonolite company contained mostly coarse-grained separates with only 8? per cent clay. The 2?0 祄 fraction was used for particle-size reduction s...
Properties of Reduced Charge Montmorillonite: Tetra-Alkylammonium Ion Exchange Forms
Montmorillonite Tetra-Alkylammonium Ion Exchange Forms
2012/2/15
Surface properties of reduced charge montmorillonites (RCM) whose exchange capacities were saturated with tetra-alkylammonium cations, were studied with X-ray diffraction, nitrogen, and water adsorpti...
Properties of the Zeolite, Faujasite, Substitutional Series: A Review with New Data
Properties Zeolite Substitutional Series New Data Review
2012/2/15
New information is presented relating to the hydrothermal stability, lattice parameters, and adsorptive, electrical, and catalytic properties of synthetic and natural faujasite. Present concepts conce...
Segregation and Exchange Properties of Alkylammonium Ions in a Smectite and Vermiculite
Segregation Exchange Properties Alkylammonium Ions Smectite Vermiculite
2012/2/15
X-ray diffraction analysis of mixed alkylammonium-exchanged smectite revealed segregation of different ion species into randomly ordered layers. Vermiculite, however, showed segregation into crystalli...
The Effect of Aluminum on the Surface Properties of Kaolinite
Aluminum Surface Properties Kaolinite
2012/2/15
Aluminum ions as well as hydroxide precipitates promote improved extraction of iron from kaolinites during leaching. Selective aggregation of ultrafine particles in kaolinites, seemingly induced by pr...
Acid-Base Interactions and the Properties of Kaolinite in Non-Aqueous Media
Acid-Base Interactions Kaolinite Non-Aqueous Media
2012/2/17
In non-aqueous systems, kaolinite can show, in addition to the physical interactions, considerable chemical activity. This study considers the chemical reactions that can occur at the kaolinite surfac...
Relation between Swelling, Water Properties and b-Dimension in Montmorillonite-Water Systems
Water Properties b-Dimension Montmorillonite-Water Systems
2012/2/17
The b-dimensions of the unit cells of six different Na-saturated montmorillonites were determined by X-ray diffraction at water contents ranging from 0 to 20 g per g of montmorillonite. In every case,...
Preparation and Solvation Properties of Some Variable Charge Montmorillonites
Preparation Solvation Properties Montmorillonites
2012/2/20
Li-, Na-, K- and Ca-saturated Wyoming montmorillonites have been prepared and used to obtain Li, Na-, Li, K-, and Li, Ca-montmorillonites with a range of Li contents. These were heated at 220°C for 24...