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Showing 1 to 20 of 178 for “"clay minerals"”.
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Phosphorus adsorption by selected clay minerals
… of the ionic atmosphere surrounding the clay particles has been presented to show the theoretical effect of certain cations on the adsorption of phosphorus by clay minerals. The various diffuse double layer and Donnan equilibrium theories were used in this theoretical treatment. Three …
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On Clay Minerals: Adsorption and Modification
Clay minerals are prevalent in nature and are a key component of sandstone-based oil reservoirs. Understanding the behaviour of organic components at clay mineral surfaces is therefore important for elucidating the mechanisms of oil recovery. These clay - organic interactions are of interest both …
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Water Sorption Properties of Homoionic Clay Minerals
Made available in DSpace on 2014-12-04T19:13:31Z (GMT). No. of bitstreams: 1 0013577.pdf: 5258230 bytes, checksum: fac19303b19949b60507538f0426d583 (MD5) Previous issue date: 1955
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Studies of clay minerals and their decomposition products
… resulting from .the dehydroxylation of the clay minerals during ashing at 700 to 750 C. By using a combination of several physicochemical methods, different successive stages of dehydroxylation, structural consolidation, and recrystallisation of illite, montmorillonite and hectorite upon …
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The Reversible Dehydroxylization of Three-Layer Clay Minerals
Made available in DSpace on 2014-12-04T19:13:26Z (GMT). No. of bitstreams: 1 0010496.pdf: 3257410 bytes, checksum: 55b50974372731d81ea42f537f747ddf (MD5) Previous issue date: 1954
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Textural and Morphological Studies of Some Clay Minerals
Made available in DSpace on 2014-12-04T19:13:31Z (GMT). No. of bitstreams: 1 0013468.pdf: 7599290 bytes, checksum: 9cc1ade1a2d5d1d375f59d44edcb4776 (MD5) Previous issue date: 1955
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Structural Aspects of Clay Minerals Using Infrared Absorption
Made available in DSpace on 2014-12-04T19:14:11Z (GMT). No. of bitstreams: 1 6104406.pdf: 3936280 bytes, checksum: 86448d1c45a06ba1ca6de484d6abb8b1 (MD5) Previous issue date: 1961
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Nanoindentation characterization of clay minerals and clay-based hybrid bio-geomaterials
… hydrous aluminosilicates are key constituent minerals in rocks, soils, and other parts of the Earth crust. Understanding mechanical properties of these aluminosilicates is crucial for seismic study, stability of parent rocks and geomaterials, and for geophysical subsurface exploration. …
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Reaction of Ca(OH)2 with clay minerals in soil stabilization
Made available in DSpace on 2014-12-04T19:14:20Z (GMT). No. of bitstreams: 1 6303234.pdf: 3156947 bytes, checksum: b2975bbf0ccdf6a7e596fcd5feccc400 (MD5) Previous issue date: 1962
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Clay linked Gels : Mechanical Enhancement of Hydrogels by Incorporation of Clay Minerals
… the incorporation of stiff inorganic fillers - clay minerals - into the AGM matrix in order to improve the gel strength of bulk AGM or Young’s -modulus of surface shells of AGM particles. Enhancement of the gel strength and Young’s -modulus is thus achieved by designing AGM composites. The high …
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Water adsorption, microstructure, and volume change behavior of clay minerals and soil
… by greater crystal strain observed in the former clay. Greater strain broadening of the (060) x-ray diffraction peak was observed for the freeze-dried clay and its mean b-dimension was slightly smaller than the oven-dried clay. Crystal strain relaxation is suggested to explain the relationship …
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Clay minerals and their gallery guests: an ab initio investigation into their interactions.
Clay minerals are ubiquitous and readily accessible in the natural environment and consequently have become an essential ingredient in the development of Western Society. Their structural properties are responsible for many of their uses, their layered-leaf composition enables the absorption of …
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Molecular Dynamics simulation of rock and clay minerals to estimate their mechanical properties
… aims at developing methods to analyze rocks, clays and other geotechnical materials to study their nanolevel properties. Molecular Dynamics simulation is the most commonly used method in molecular mechanics. A software program TINKER was used for developing the simulation. Using this, MD …
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The interaction of clay minerals with distilled water and saline solutions at elevated temperatures
<p>Clay minerals and feldspar were reacted with distilled water and natural and artificial sea water at 90° and 200°C for up to sir weeks and at 3500 C for three days. The data show that silica is released by clay minerals as a result of the dissolution of a disturbed surface layer. The amount of …
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Pesticide Adsorption and Degradation Properties as Influenced by Iron Oxidation State in Clay Minerals
Reduction of structural Fe in the clay greatly increased the adsorption and produced substantial degradation of all pesticides. When reacted with chemically treated clays, the total amount of atrazine removed from solution by the reduced clay was much greater than by the oxidized or reoxidized …
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