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Synthesis of Pure Zeolite X from Palygorskite Clay Using a Two-Stage Method
Palygorskite Clay Synthesis Two-Stage Method Zeolite X
2011/11/14
A natural mineral, palygorskite clay, was used to synthesize pure zeolite X via a two-stage method. The synthetic parameters, such as calcination, crystallization time, and SiO2/Al2O3 molar ratio, wer...
Thermoanalytical characterization, stable isotope and paleoenvironmental considerations of kaolinite from two genetic sources
Thermoanalytical characterization stable isotope paleoenvironmental considerations kaolinite two genetic sources
2012/3/14
Thermoanalytical characterization, stable isotope and paleoenvironmental considerations of kaolinite from two genetic sources.
Phase Analysis of Clays Using an Expert System and Calculation Programs for X-Ray Diffraction by Two- and Three-Component Mixed-Layer Minerals
Clay Analysis Expert System Mixed-Layer Minerals Phase Analysis XRD
2011/12/2
Abstract: X-ray phase analysis of clays is difficult because these materials generally consist of a mixture of different phases, i.e., mixed-layer minerals, individual clay minerals (non mixed-layer),...
Geology and Characterization of Two Hydrothermal Nontronites from Weathered Metamorphic Rocks at the Uley Graphite Mine, South Australia
Amphibole Alteration Biotite Alteration Hydrothermal Alteration Infrared Spectroscopy NAu-1 NAu-2 Nontronite Weathering X-ray Diffraction
2011/12/6
Abstract: Mining operations during the early 1990s at Uley Graphite Mine near Port Lincoln on southern Eyre Peninsula, South Australia, uncovered abundant nontronite veins in deeply weathered granulit...
Crystal structures of two partially dehydrated chlorites: The "modified" chlorite structure
Crystal structures two partially dehydrated chlorites:The "modified" chlorite structure
2012/4/1
Chromian clinochlore-IIb-4 (triclinic) and IIb-2 (monoclinic) polytypes from the Day Book Body,
North Carolina, were heated to 650 ?C for 5 hours and air quenched. Single-crystal X-ray refinements
o...
Modeling of the solubility of a two-component H2O + CO2 fluid in silicate liquids
H2O + CO2 silicate liquids two-component
2012/3/31
Thesolubilityofatwo-component,H O CO ?uidinsilicateliquidswasmodeledby
assumingmechanical,thermal,andchemicalequilibriumbetweenthe?uidandliquidphas- H O CO )
es.Theliquidphasewastreatedasa12-compone...
High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg0.95,Fe0.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions
high-resolution synchrotron X-ray powder diffraction
2012/3/30
Thispaperpresentshigh-resolutionsynchrotronX-raypowderdiffractiondataat290K
ontwoFe-bearing,polycrystallinesilicateperovskitesampleswithapproximatecompo-
Fe )SiO synthesizedat25GPaand1920Kinamulti-a...
Involvement of genes of the two-step protein secretion pathway in the transport of the manganese-oxidizing factor across the outer membrane of Pseudomonas putida strain GB-1
Involvement of genes two-step protein secretion pathway transport manganese-oxidizing factor Pseudomonas putida strain GB-1
2012/4/1
Microorganisms can accelerate the rate of Mn21 oxidation by up to five orders of mag-nitude compared to abiotic Mn21 oxidation. Mn21 oxidation in Pseudomonas putida strain GB-1 involves an enzyme inco...
Transformation of titanomagnetite to titanomaghemite; A slow, two-step oxidation-ordering process in MORB
Transformation titanomaghemite A slow two-step oxidation-ordering process MORB
2012/4/6
Theyoungestsamplehasparameterscorrespondingtonearlyunoxidizedtitanomagne-
tite,whereastheoldestisnear-end-membertitanomaghemite.Intermediatesamplesare
partiallyalteredbutdisplaynosuperstructurere?ec...
Two-site multi-cation ordering-disordering in minerals: An alternative kinetic model
Two-site multi-cation ordering-disordering minerals kinetic model
2012/4/6
Mueller'smodelhasbeenwidelyapplied to modelingkineticexperimental data onthe ordering-disordering ofcations betweentwo nonequivalent sites.Thismodelis validonly for pure ornearly purebinary systems. F...
Molecular dynamics of NaCl (B1 and B2) and MgO (B1) melting: Two-phase simulation
Molecular dynamics NaCl (B1 and B2) MgO (B1) Two-phase simulation
2012/4/5
Melting of NaCl and MgOhas been simulated witha two-phase molecular dynamics method at constant pressure using newly developed interaction potentials. Equations of state for NaCl and MgOsimulated by m...
Preparation and Characterization of Two Distinct Ethylene Glycol Derivatives of Kaolinite
Ethylene glycol Interlamellar modification Kaolinite
2011/12/29
A new, well-ordered, thermally robust ethylene glycol intercalate of kaolinite was formed by refluxing the dimethyl sulfoxide intercalate of kaolinite (Kao-DMSO) with dry ethylene glycol (EG). This ne...
Burial Diagenesis in Two Montana Tertiary Basins
Diagenesis Illite Illite/smectite Smectite Tarasovite Volcaniclastic
2011/12/31
Samples from initially smectite-rich Tertiary continental volcaniclastic sediment from the Deer Lodge and Big Hole basins of southwestern Montana show a general decrease in illite/smectite (I/S) expan...
Adsorption of Benzene, Toluene, and Xylene by Two Tetramethylammonium-Smectites Having Different Charge Densities
Adsorption Aromatic hydrocarbons Benzene Charge density Smectite Tetramethylammonium Water
2012/1/4
A high-charge smectite from Arizona [cation-exchange capacity (CEC) = 120 meq/100 g] and a low-charge smectite from Wyoming (CEC = 90 meq/100 g) were used to prepare homoionic tetramethylammonium (TMA...
Properties of Iron Oxides in Two Finnish Lakes in Relation to the Environment of Their Formation
Al-substitution Ferrihydrite Genesis Goethite Iron oxide Lake environment
2012/1/11
Fifteen iron oxide accumulations from the bottoms of two Finnish lakes (搇ake ores? were found to contain as much as 50% Fe. Differential X-ray powder diffraction and selective dissolution by oxalate s...