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Effects of Temperature on the Sorption of Lanthanides by Montmorillonite
Adsorption Cation exchange Hydrolysis Infrared spectroscopy Lanthanides Montmorillonite X-ray powder diffraction
2012/2/7
The diffusion of exchanged Yb, Ho, and Eu from interlayer positions in montmorillonite was studied using infrared spectroscopy (IR), X-ray powder diffraction, and cation-exchange measurements. Dehydra...
Hydrothermal Effects on Cesium Sorption and Fixation by Clay Minerals and Shales
Cesium Hydrothermal Illite Ion fixation Ion sorption Shale Vermiculite Waste repository
2012/2/8
The effects of hydrothermal conditions on the sorption and fixation of cesium by various clay minerals and shales were investigated. Hydrothermal heating, which may be expected in a radioactive waste ...
Thermodynamic and Structural Features of Water Sorption in Zeolites
Heulandite Stilbite Thermal stability Water sorption Zeolite
2012/2/10
The water adsorption capacity of zeolites is a function of pressure and temperature. Desorption of zeolites may be of three types, wherein the crystal lattice undergoes (1) no or little change, (2) a ...
The Interaction Between Roundup (Glyphosate) and Montmorillonite. Part II. Ion Exchange and Sorption of Iso-Propylammonium by Montmorillonite
Adsorption Exchange Glyphosate Herbicide Iso-propylammonium Montmorillonite
2011/11/18
Abstract: The adsorption mechanism of iso-propylammonium (PAH+), the cationic component of Roundup, by various homoionic montmorillonites and the structures of the associations obtained in the interla...
The Interaction Between Roundup (Glyphosate) and Montmorillonite. Part I. Infrared Study of the Sorption of Glyphosate by Montmorillonite
Adsorption Glycine Glyphosate Herbicide Montmorillonite Zwitterion
2011/11/18
Abstract: The reaction between the herbicide “Roundup,” (PAH)3G, which is the commercial name of the iso-propylammonium salt of glyphosate (H3G, N-phosphonomethyl glycine), and montmorillonite was stu...
Microporosity in Montmorillonite from Nitrogen and Carbon Dioxide Sorption
Microporosity Montmorillonite Carbon Dioxide Sorption
2012/2/13
Nitrogen adsorption at 78亱K and carbon dioxide sorption at 195亱K on homoionic lithium, sodium, caesium, calcium, lanthanum and hexane diammonium saturated montmorillonites have been examined by means ...
Interlamellar and Multilayer Nitrogen Sorption by Homoionic Montmorillonites
Interlamellar Multilayer Nitrogen Sorption Homoionic Montmorillonites
2011/11/18
Abstract: Nitrogen sorption by various homoionic montmorillonites was studied at 78°K. The adsorption isotherms in the relative pressure range P/P0 = 0·05–0·25 were found to be either Type I or Type I...
Sorption isotherms for four gases (N2, A, Kr and CO2), commonly used in specific surface area and pore structure measurements, have been accurately determined on a number of clay mineral and oxide sys...
Effect of Particle Size on Potassium Sorption by Potassium-Depleted Phlogopite
Particle Size Potassium Sorption Potassium-Depleted Phlogopite
2012/2/15
Sorption of K from mixed KCl and CaCl2 solutions by K-depleted, Ca-saturated phlogopite was studied to determine the effect of particle size. The experiments were done at room temperature with 25 mg o...
The Effect of Cation Exchange of Tris(Ethylenediamine)Cobalt(III) for Sodium on Nitrogen Sorption by Montmorillonite
Tris(Ethylenediamine)Cobalt(III) Sodium Nitrogen Sorption Montmorillonite
2011/11/18
Abstract: The cation exchange process between tris(ethylenediamine)cobalt(III) and Na+ on montmorillonite was studied by atomic absorption spectrophotometry, X-ray diffraction, differential thermal an...
Selective Sorption and Fixation of Cations by Clay Minerals: A Review
Selective Sorption Fixation of Cations Clay Minerals Review
2012/2/15
Investigations concerning selective sorption and fixation of K and similar cations by clay minerals and soil clays and the mechanisms of these reactions are reviewed. In particular, recent observation...
The Effect of Exchangeable Cations on the Sorption of Chlorophyllin by Montmorillonite
Effect Exchangeable Cations Sorption Chlorophyllin Montmorillonite
2012/2/20
The sorption of commercial K-Cu chlorophyllin by a sample of montmorillonite saturated with different exchange ions was studied. The organic anions are sorbed on external surfaces while K displaces mo...
Surface Area of Homoionic Illite and Montmorillonite Clay Minerals as Measured by the Sorption of Nitrogen and Carbon Dioxide
Surface Area Homoionic Illite Montmorillonite Clay Minerals Nitrogen Carbon Dioxide Sorption
2012/2/20
The surface areas obtained by application of the B.E.T. theory to adsorption isotherms of nitrogen and carbon dioxide gases at 77°K and 195°K respectively on homoionic samples of illite and montmorill...
Effect of Acidity in Montmorillonite Interlayers on the Sorption of Aniline Derivatives
Acidity Montmorillonite Interlayers Sorption Aniline Derivatives
2012/2/21
Sorption of aniline and its derivatives by montmorillonite substituted by cations of widely different acidity depends upon the polarizing power of the interlayer cations. Infra-red spectra indicate th...
Surface Area of Montmorillonite from the Dynamic Sorption of Nitrogen and Carbon Dioxide
Montmorillonite the Dynamic Sorption Nitrogen Carbon Dioxide
2011/11/17
Abstract: Surface area determinations were made on a montmorillonite with various cations emplaced on the exchangeable sites, utilizing nitrogen and carbon dioxide as adsorbates at 77癒 and 195癒, respe...