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Adsorptive Removal of 2,6-Dichlorophenol from Aqueous Solution by Surfactant-modified Palygorskite Sorbents: Equilibrium, Kinetics and Thermodynamics
Chemistry Tribology Adsorption and Surface Science Palygorskite Sorbents
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2011/11/8
Raw palygorskite was modified by the addition of selected surfactants, viz. hexadecyltrimethylammonium bromide (CTAB), cetylpyridinium bromide (CPB) and octadecyldimethylbenzyl ammonium chloride (ODBA...
Adsorption of cationic dye on N,O-carboxymethylchitosan from aqueous solutions: equilibrium, kinetics,and adsorption mechanism
N,O-carboxymethyl-chitosan Adsorption Methylene blue Equilibrium Kinetics Mechanism
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2011/12/15
In order to improve the adsorption capacity of chitosan (CTS) for methylene blue (MB) cationic dye, a series of N,O-carboxymethyl-chitosans (N,O-CMCTS) were prepared under heterogeneous conditions by ...
Equilibrium desorption isotherms of water, ethanol, ethyl acetate, and toluene on a sodium smectite clay
Clay Dynamic vapour sorption Ethanol Ethyl acetate Knudsen thermogravimetry Smectite Sorption isotherm Toluene Water
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2011/11/10
Abstract Desorption isotherms for water, ethanol, ethyl acetate and toluene from a sodium smectite clay have been determined by both dynamic vapor sorption (DVS) measurements and Knudsen thermogravim...
Trace element distribution among rock-forming minerals in Black Hills migmatites, South Dakota: A case for solid-state equilibrium
rock-forming minerals Black Hills migmatites solid-state equilibrium South Dakota
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2012/3/31
Proterozoic migmatites in the Black Hills, South Dakota, were examined to determine if parti-
tioning of trace elements hosted by rock-forming minerals between melanosomes and leucosomes
preserves r...
Experimental phase-equilibrium study of Al- and Ti-contents of calcic amphibole in MORB--A semiquantitative thermobarometer
Experimental phase-equilibrium Al- and Ti-contents calcic amphibole MORB--A semiquantitative thermobarometer
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2012/4/1
Calcic amphiboles were synthesized from a natural mid-ocean ridge basalt (MORB) in 39 experiments representing 24 sets of pressure-temperature ( P -T ) conditions ranging from 650?50 8C, 0.8?.2 GPa, a...
Heat capacity and thermodynamic properties for coesite and jadeite, reexamination of the quartz-coesite equilibrium boundary
Heat capacity thermodynamic properties quartz-coesite equilibrium boundary
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2012/3/31
The heat capacities of synthetic coesite and jadeite were measured between about 15 and 850 K by adiabatic and differential scanning calorimetry. The experimental data were smoothed and estimates were...
Equilibrium Modeling of Clinoptilolite-Analcime Equilibria at Yucca Mountain, Nevada, USA
Analcime Clinoptilolite Modeling Stability Thermodynamic Zeolite
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2011/12/9
Abstract: Yucca Mountain, Nevada, is being investigated to determine its suitability to host a potential high-level radioactive waste respository. An important reason for its choice as a potential rep...
Athermodynamic formulation for the sorption ofH20in clinoptilolite hasbeen ob-tained from analysis ofequilibrium data collected bythermogravimetry on near end-memberCa-,Na-,and K-exchangednatural clin...
Soil Minerals in the System Al2O3-SiO2-H2O: Phase Equilibrium Model
Soil Minerals Phase Equilibrium Model Al2O3-SiO2-H2O
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2011/11/18
Abstract: Mineralogical reactions in the system Al2O3-SiO2-H2O are examined and an isothermal, isobaric cross-section of the portion of the system applicable to soil genesis, is determined. The releva...
This paper discusses the terminology, concepts, and criteria involved in the recognition of equilibrium assemblages in ores, especially with reference to the determination of the physico-chemical envi...