搜索结果: 76-90 共查到“凹凸棒石 Montmorillonite”相关记录229条 . 查询时间(0.195 秒)
Changes in the Properties of a Montmorillonite-Water System during the Adsorption and Desorption of Water: Hysteresis
Adsorption Desorption Hysteresis Infrared spectroscopy Montmorillonite Vapor pressure Water
2012/1/4
Samples of Na-saturated, Upton montmorillonite were prepared with different contents of water (H2O or D2O) by: (1) adsorption of water from the vapor phase at a specific value of p/p°, the relative hu...
Diagenesis of Oligocene-Miocene Vitric Tuffs to Montmorillonite and K-Feldspar Deposits, Durango, Mexico
Clinoptilolite Diagenesis Energy-dispersive X-ray spectroscopy K-feldspar Montmorillonite Pyroclastic Scanning electron microscopy Tuff
2012/1/4
Montmorillonite and K-feldspar deposits of potential economic interest occur in the Late Oligocene-Miocene tuffs of the Vizcarra Formation in the state of Durango, Mexico. The two minerals were formed...
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...
Synthesis of Highly Microporous and Hydrophilic Alumina-Pillared Montmorillonite: Water-Sorption Properties
Hydrophobicity Montmorillonite Pillared interlayer complex Porosity Surface condensation Thermal treatment X-ray powder diffraction
2012/1/4
A montmorillonite exchanged with large hydroxy-Al cations was thermally treated to convert the hydroxy cations to oxide pillars and to generate permanent microporosity in the interlayers. The pillared...
Use of Competitive Ion Exchange for Intercalation of Montmorillonite with Hydroxy-Aluminum Species
Competitive ion exchange Hydroxy-Al Intercalation Montmorillonite Pillared clays Thermal stability X-ray powder diffraction
2012/1/4
Three montmorillonite samples, from Wyoming (particle size <0.2 µm, 4.6 wt. % Fe2O3), Greece (<14 µm, 6.5 wt. % Fe2O3), and Poland (0.5 wt. % Fe2O3, two fractions <2 µm and 2–10 &mic...
Formation of Polyethylene Glycol on Montmorillonite by Sterilization with Ethylene Oxide
Adsorption Infrared spectroscopy Ethylene oxide Interlayer cations Montmorillonite Polymerization Sterilization X-ray powder diffraction
2012/1/4
The effect of ethylene oxide-sterilization on homoionic (Na+, K+, Ca2+, Cu2+, Al3+, and Fe3+) montmorillonite samples was examined. The results indicate that ethylene oxide polymerized to polyethylene...
Interaction of Diclofop and Diclofop-Methyl with Al3+-, Fe3+-, and Cu2+-Saturated Montmorillonite
Adsorption Bentonite Diclofop Diclofop-methyl Interlayer cations Interlayer complexes Montmorillonite Pesticide
2012/1/9
The adsorption from chloroform solution of the herbicide diclofop, (RS)-2-(4-(2,4-dichlorophenoxy)phenoxy)propionic acid, and its methyl ester diclofop-methyl on Cu2+-, Al3+-, and Fe3+-exchanged bento...
Adsorption of Water by Homoionic Exchange Forms of Wyoming Montmorillonite (SWy-1)
Adsorption Enthalpy Entropy Montmorillonite Relative humidity Water
2012/1/5
Adsorption isotherms for water on homoionic (Ca2+, Li+, Na+, and K+) exchanged forms of Crook County, Wyoming, montmorillonite (CMS Source Clay SWy-1) were measured between 25° and 70°C using a vacuum...
D-Glucosamine Sorption on Cu(II)-Montmorillonite as the Protonated and Neutral Species
Adsorption Copper D-glucosamine Electron spin resonance Infrared spectroscopy Montmorillonite Protonation
2012/1/6
The adsorption of D-glucosamine (2-amino-2-deoxy-D-glucose) in the protonated or neutral form on homoionic Cu2+-bentonite was investigated by infrared (IR) and electron spin resonance (ESR) spectrosco...
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...
Adsorption Properties of Montmorillonite and Synthetic Saponite as Packing Materials in Liquid-Column Chromatography
Adsorption Electronic absorption Liquid-column chromatography Montmorillonite Ruthenium phenanthroline Saponite
2012/1/10
The adsorption of tris(1,10-phenanthroline)-ruthenium(II) (Ru(phen)32+) by two kinds of colloidally dispersed clays, sodium montmorillonite and synthetic saponite, was studied by spectrophotometric an...
Reactions of Polynuclear Hydroxyaluminum Cations with Montmorillonite and the Formation of A 28-A Pillared Complex
Fourier transform Hydroxy-Al Montmorillonite Pillared interlayer complex Thermal stability
2012/1/9
Polynuclear hydroxy-Al cations were prepared by partially neutralizing dilute solutions of aluminum chloride. These cations were introduced in the interlayer space of montmorillonite by cation exchang...
Interaction of Fluazifop with Al-, Fe3+-, and Cu2+-Saturated Montmorillonite
Adsorption Electron spin resonance Fluazifop Infrared spectroscopy Interlayer cations Pesticide
2012/1/9
The adsorption of the pesticide Fluazifop, (RS)-2-[4-[[(5-trifluoromethyl)-2-pyridinyl]oxy]phenoxy] propanoic acid, on homoionic Cu2+-, Fe3+-, and Al-bentonites was investigated by infrared and electr...
Interaction of Phenamiphos with Montmorillonite
Infrared spectroscopy Montmorillonite Organophosphorus compound Pesticide Phenamiphos Protonation
2012/1/9
Phenamiphos interacted with homoionic montmorillonites of Ca2+, Mn2+, Co2+, and Ni2+ to form interlayer complexes having basal spacings of about 16.5/ Å. In the infrared spectra, the ν-PO bands ...
Photostabilization of a Nitromethylene Heterocycle Insecticide on the Surface of Montmorillonite
Adsorption Clay-organic complex Infrared spectroscopy Montmorillonite Nitromethylene heterocycle Pesticide Photostabilization
2012/1/9
The photochemical stability of the insecticidal compound tetrahydro-2-(nitromethylene)-2H-1,3-thiazine (NMH) adsorbed on montmorillonite (Mont), in the presence or in the absence of a second organic c...