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Cation Exchange Capacity and Condition of Zero Charge of Hydroxy-Al Montmorillonite
Cation exchange capacity Pillared clay Point of zero charge
2011/12/29
The effect of interlayering montmorillonite with different amounts ofhydroxy aluminum cation on the cation exchange capacity (CEC) and the point of zero charge (PZC) of the clay was studied. The CEC d...
Properties of Hydroxy-Al and -Cr Interlayers in Montmorillonite
Aluminum Chromium Interlayering Montmorillonite XPS
2011/12/29
In environments contaminated with Cr, the interlayers of expandable layer silicates may serve as sinks for this potentially toxic element. As a means of determining the potential for smectites to serv...
Silication of Hydroxy-Al Interlayers in Smectite
Al-interlayer Interlayer adsorption Montmorillonite Silication Silicic acid
2011/12/1
Abstract: The reaction of hydroxy-Al interlayers in montmorillonite with monosilicic acid was studied by chemical analysis, X-ray diffractometry (XRD), and Fourier-transform infrared (FTIR) spectrosco...
Adsorption of Hydroxy-Al Polycations and Destabilization of Illite and Montmorillonite Suspensions
Adsorption Flocculation Hydroxy-Al Illite Montmorillonite Point of zero charge
2012/1/4
Water-infiltration characteristics of soil can be improved by preventing clay dispersion. The present study determined the adsorption properties of hydroxy-Al polycations (Al-p) and their relation to ...
Cross-Linked Hydroxy-Al-Montmorillonite as a Stationary Phase in Liquid Chromatography
Adsorption Chelation Cross-linked smectite Disubstituted benzene High-pressure liquid chromatography Hydroxy-Al Monosubstituted benzene Phenyl-urea Phosphate esters
2012/1/4
Quasi-spherical particles (7-µm mean diameter) were prepared from cross-linked hydroxy-Al-montmorillonite (basal spacing = 15.3 and 18.6 Å) by spray-drying. These particles (SP-CLM) were u...
Properties of Organo-Mineral Complexes Formed by Different Addition Sequences of Hydroxy-Al, Montmorillonite, and Tannic Acid
Differential thermal analysis Hydroxy-Al Interlayer space Montmorillonite Organo clay Tannic acid X-ray powder diffraction
2012/1/5
A study was carried out on the influence of the sequence of addition of montmorillonite, hydroxy-Al ions, and tannic acid ([Al] = 0.015 M; 6 mmole Al/g of clay; tannic acid/Al molar ratio = 0.1) on th...
Influence of Citric and Tannic Acids on Hydroxy-Al Interlayering in Montmorillonite
Al polymers Hydroxy-Al interlayer Ion-exchange resin Montmorillonite Organic acid Specific surface
2011/11/25
Abstract: The formation of hydroxy-Al-interlayered montmorillonite was affected by complexing organic acids. Montmorillonite (<2.0 祄) was aged for three months at an initial pH of 5.0 or 6.0 in AlCl3 ...
Reduction of the Cation-Exchange Capacity of Montmorillonite by Take-Up of Hydroxy-Al Polymers
Cation-exchange capacity Hydroxy-Al polymer Interlayer Montmorillonite Smectite
2012/1/12
The cation-exchange capacity (CEC) of Na-Al- and Ca-Al-montmorillonite after neutralization with NaOH or Ca(OH)2 was studied at three Al levels: 10, 25, and 50% of the CEC. Hydroxy-Al polymers were ef...
Formation, Compositions, and Properties of Hydroxy-Al- and Hydroxy-Mg-Montmorillonite
Hydrolysis Hydroxy interlayer Montmorillonite Swelling Thermal stability
2012/2/9
Hydroxy-Al- and hydroxy-Mg-montmorillonite were prepared by treating dispersed Na-montmorillonite with aluminum and magnesium nitrate solutions and titrating with NaOH solutions so that the OH/Al rati...
Adsorption of Hydroxy-Al by Certain Phyllosilicates and its Relation to K/Ca Cation Exchange Selectivity
Adsorption Hydroxy-Al Certain Phyllosilicates K/Ca
2012/2/20
The adsorption of hydroxy-Al by the 2?? ?size fractions of muscovite, biotite, K-depleted micas, vermiculite and montmorillonite was studied. The differences in the amounts of hydroxy-Al adsorbed were...
Formation of Hydroxy-Al and -Fe Interlayers in Montmorillonite and Vermiculite: Influence of Particle Size and Temperature
Formation Hydroxy-Al -Fe Interlayers Montmorillonite Vermiculite Particle Size Temperature
2012/2/21
Hydroxy-Al and -Fe interlayers were prepared in 乬mono-mineralic乭 fine and coarse clay montmorillonite and coarse clay and silt vermiculite at 3亱C and 21亱C. The formation of hydroxy interlayers was eva...