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Clays and Clay Minerals

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Clays and Clay Minerals 9 registres trobats  La cerca s'ha fet en 0.01 segons. 
1.
4 p, 654.0 KB Hydraulic characteristics of bentonite cake fabricated on cutoff walls / Jefferis, Stephan A. (Department of Engineering Science. University of Oxford. Parks Road) ; Lam, Carlos (The University of Manchester. Aerospace and Civil Engineering)
2012 - 10.1346/CCMN.2012.0600601
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 557-560  
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2.
13 p, 1.2 MB Changes in structure, morphology, porosity, and surface activity of mesoporous halloysite nanotubes under heating / Yuan, Peng (Chinese Academy of Sciences. CAS Key Laboratory of Mineralogy and Metallogeny) ; Tan, Daoyong (Graduate School of the Chinese Academy of Science) ; Annabi-Bergaya, Faïza (Centre National de la Recherche Scientifique (França)) ; Yan, Wenchang (Graduate School of the Chinese Academy of Science) ; Fan, Mingde (Inner Mongolia University. College of Environment and Resources) ; Liu, Dong (Chinese Academy of Sciences. CAS Key Laboratory of Mineralogy and Metallogeny) ; He, Hongping (Chinese Academy of Sciences. CAS Key Laboratory of Mineralogy and Metallogeny)
The objective of the present study was to investigate changes in the structural, textural, and surface properties of tubular halloysite under heating, which are significant in the applications of halloysite as functional materials but have received scant attention in comparison with kaolinite. [...]
2013 - 10.1346/CCMN.2012.0600602
Respiratory Care, Vol. 60, Núm. 6 (2012) , p. 561-573  
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3.
14 p, 1.4 MB Structures of the 2:1 layers of pyrophyllite and talc / Drits, Victor A. (Geological Institute of the Russian Academy of Science) ; Guggenheim, Stephen (University of Tokyo. Department of Earth and Planetary Science) ; Zviagina, Bella B. (Geological Institute of the Russian Academy of Science) ; Kogure, Toshihiro (University of Tokyo. Department of Earth and Planetary Science)
To determine the relationships between the symmetry of the overall pyrophyllite and talc structure and the symmetry of individual layers, the geometry and symmetry of each 2:1 layer of pyrophyllite and talc were analyzed. [...]
2012 - 10.1346/CCMN.2012.0600603
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 574-587  
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4.
11 p, 1.1 MB An electron paramagnetic resonance spectroscopy investigation of the retention mechanisms of Mn and Cu in the nanopore channels of three zeolite minerals / Ferreira, Daniel R. (Southern Polytechnic State University. Department of Biology and Chemistry) ; Schulthess, Cristian P. (University of Connecticut. Department of Plant Science and Landscape Architecture) ; Amonette, James E. (Pacific Northwest National Laboratory) ; Walter, Eric D. (Pacific Northwest National Laboratory)
The adsorption mechanisms of divalent cations in zeolite nanopore channels can vary as a function of their pore dimensions. The nanopore inner-sphere enhancement (NISE) theory predicts that ions may dehydrate inside small nanopore channels in order to adsorb more closely to the mineral surface if the nanopore channel is sufficiently small. [...]
2012 - 10.1346/CCMN.2012.0600604
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 588-598  
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5.
11 p, 1.4 MB A molality-based bet equation for modeling the activity of water sorbed on clay minerals / Reynolds, Jacob G. (Washington River Protection Solutions) ; Johnston, Cliff T. (Purdue University) ; Agnew, Stephen F. (Columbia Energy and Environmental Service)
The Brunauer-Emmett-Teller (BET) theory models the effective specific surface area and water content of solids as a function of the relative vapor pressure of water. A modified form of the BET equation has been used successfully to model water activity in concentrated electrolyte solutions as a function of electrolyte concentration. [...]
2012 - 10.1346/CCMN.2012.0600605
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 599-609  
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6.
6 p, 387.8 KB Effects of hydrothermal parameters on the synthesis of nanocrystalline zeolite NaY / Nouri, Amir (Iran University of Science and Technology. Research Centre for Membrane Separation Processes) ; Mostafa, Jafari (Iran University of Science and Technology. Research Centre for Membrane Separation Processes) ; Mansour, Kazemimoghadam (Iran University of Science and Technology. Research Centre for Membrane Separation Processes) ; Toraj, Mohammadi (Iran University of Science and Technology. Research Centre for Membrane Separation Processes)
Synthesized zeolites are extremely important as industrial minerals and are most commonly prepared using organic templates. Because these organic templates present undesirable environmental hazards, a synthesis method which avoids their use is desirable. [...]
2012 - 10.1346/CCMN.2012.0600606
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 610-615  
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7.
17 p, 1.5 MB Laboratory-simulated diagenesis of nontronite / Miller, Matthew A. (University of Oklahoma. School of Geology and Geophysics) ; Madden, Andrew S. (University of Oklahoma. School of Geology and Geophysics) ; Megan Elwood, Madden (University of Oklahoma. School of Geology and Geophysics) ; Douglas, Elmore R. (University of Oklahoma. School of Geology and Geophysics)
Nontronite NAu-1 was exposed to moderate temperature and pressure conditions (250 and 300°C at 100 MPa pressure) in KCl brine to simulate burial diagenetic systems over accelerated time periods appropriate for laboratory experiments. [...]
2012 - 10.1346/CCMN.2012.0600607
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 616-632  
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8.
22 p, 5.9 MB Mineralogy and geochemistry of the sedimentary kaolin deposits from Sinai, Egypt : Implications for control by the source rocks / Baioumy, Hassan M. (Central Metallurgical R and D Institute) ; Gilg, H. Albert (Technische Universität München. Lehrstuhl für Ingenieurgeologie) ; Taubald, Heinrich (Universität Tübingen. Lehrstuhl für Isotopengeochemie)
Abstract-Mineralogical and geochemical variations among the Carboniferous and Cretaceous sedimentary kaolin deposits from Sinai provided an opportunity to examine the effect of the source area on compositions of the deposits. [...]
2012 - 10.1346/CCMN.2012.0600608
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 633-654  
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9.
11 p, 569.9 KB Determination of the predominant minerals in sedimentary rocks by chemometric analysis of infrared spectra / Ritz, Michal (VŠB Technical University Ostrava. Regional Materials Science and Technology Centre) ; VaculíkOva, Lenka (Institute of Geonics of the AS CR. Institute of clean technologies for mining and utilization of raw materials for energy use) ; Plevova, Eva (Institute of Geonics of the AS CR. Institute of clean technologies for mining and utilization of raw materials for energy use) ; Matýsek, Dalibor (VŠB-Technical University Ostrava. Institute of clean technologies for mining and utilization of raw materials for energy use) ; Mališ, Jirí (VŠB-Technical University Ostrava. Institute of clean technologies for mining and utilization of raw materials for energy use)
The objective of the present study was to determine the predominant minerals in sedimentary rocks using Fourier-transform infrared (FTIR) spectroscopy and chemometric analysis. The chemometric analysis was performed on three types of sedimentary rock samples (claystones, clay slates, and sandstones), each with different predominant mineral components. [...]
2012 - 10.1346/CCMN.2012.0600609
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 655-665  
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