alteration of mica surfaces by water and solutions
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CiteSeerX — ALTERATION OF MICA SURFACES BY WATER AND
CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): ABSTRACT: Samples of muscovite and phlogopite of particle sizes varying from less than 5/tm to 500am were allowed to stand in distilled water and in several NaNO3 solutions. The modifications of their surface were determined by thermovolumetric measurements of the extra-water associated with the altered rim.
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ALTERATION OF MICA SURFACES BY WATER AND SOLUTIONS
ALTERATION OF MICA SURFACES BY WATER AND SOLUTIONS . By A. &apos, P. G. Rouxhet and A. J of particle sizes varying from less than 5/tm to 500am were allowed to stand in distilled water and in several NaNO3 solutions. The modifications of their surface were determined by thermovolumetric measurements of the extra-water associated with the
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Alteration of Mica Surfaces by Water and Solutions CORE
Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): doi/10.1180/claymin (external link)
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Alteration of wetting of mica surfaces ScienceDirect
Dec 01, 1999· Both of these mica minerals exhibit perfect cleavage to produce molecularly smooth surfaces. 2.2. Aqueous solutionsAll solutions were prepared from reagent grade salts and deionized water that was redistilled in glass. NaCl solutions with salinities up to 1 M were weakly buffered using sodium acetate/acetic acid (pH 4) or sodium phosphate salts
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Wetting alteration of mica surfaces with polyethoxylated
Wetting alteration of mica surfaces with polyethoxylated amine surfactants. Upon exposure to the surfactant solutions, the mica became oil-wet rinsed with non-aqueous solvents, and submerged in decane for measurements of water/decane contact angles. These results suggest only weak surfactant adsorption occurred from non-aqueous solutions.
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Wetting alteration of mica surfaces with polyethoxylated
The results show that the solution of Triton X-100/brine changes the wettability of the mica surface aged in crude oil to water-wet; however, the solution of C16TAB/brine alters the aged mica
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Wettability alteration by trimeric cationic surfactant at
Aug 01, 2012· Second, the effect of time to wettability alteration was shown in Fig. 5 and was measured by the contact angle of the 12-2-12-2-12 aqueous solution on the water-wet/oil-wet mica surface. Fig. 5 A shows that the contact angle changes over time in the 12-2-12-2-12 aqueous solution at almost the velocity of the water-wet mica surface at
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Influence of pH and temperature on the early stage of mica
Sep 01, 2012· Studies on mica surface reactivity have been reviewed by Nagy (1995). This study builds upon this past work by focusing on the effect of reactive solution composition and temperature at the mica–water interface. Reactions at this interface play a role in a number of natural processes.
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Atomic Force Microscopy (AFM) Investigation on the
The results show that the solution of Triton X-100/brine changes the wettability of the mica surface aged in crude oil to water-wet; however, the solution of C16TAB/brine alters the aged mica
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MICA is the leading water mitigation suite in the restoration industry. MICA is the simple, efficient, and comprehensive solution that provides benefits for the insurance carrier, the adjuster and the contractor. Insurance carriers get the benefit of a real-time audit by exceptions and improved cycle time due
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Tuning the hydrophobicity of mica surfaces by hyperthermal
104705-3 Tuning the hydrophobicity of mica surfaces J. Chem. Phys. 134, 104705 (2011) FIG. 2. Droplets of Milli-Q water on (a) an untreated mica surface and (b) and (c) a mica surface bombarded with 25 eV Ar ions at a fluence of 5×1014 cm−2. The age of the samples is 10 (a), 7 (b), and 84 days (c). ber of adatoms can be produced on the surface.
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Formation Permeability Damage by Mica Alteration and
Carbonate contents of effluents and sands were determined by titrating with hydrochloric acid. In the case of aqueous effluent solutions, a known volume of solution was titrated with 0.01-normal hydrochloric acid to below pH 7. A glass electrode and pH meter were used to pH 7. A glass electrode and pH meter were used to determine pH values. JPT
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Influence of pH and temperature on the early stage of mica
tems, mica dissolution results in forming illite and smectite that in turn promote pressure solution in sedimentary basins (Gerard et al., 2002; Meyer et al., 2006). Although the understanding of mica alteration is crucial to the dynamics of water–rock interac-tion, studies on mica
Ask for priceInfluence of pH and temperature on the early stage of mica
Influence of pH and temperature on the early stage of mica alteration. Download. Influence of pH and temperature on the early stage of mica alteration. Paolo Censi. Weathering reactions and hyporheic exchange controls on stream water chemistry in a
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Wettability Alteration by Chemical Agents at Elevated
high temperature and high pressure. Wettability alteration mechanism was further analyzed with atomic force microscopy (AFM), which provided the topography change of mica or calcite surface, which illustrated the deposition of the chemicals and removal of the existing oil layer.
Ask for priceAdhesion energy between mica surfaces: Implications for
The H 3 O + ‐mica surface did not show a hydration force between the surfaces [Pashley, 1981], which indicates that the frictional coefficient of mica under wet conditions, caused by contact with deionized water, could be similar to that under dry conditions at higher pressures than the osmotic pressure caused by the presence of the EDL.
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دانلود مقاله Wettability alteration of mica and sandstone
AFM analyses of the mica surfaces reveales noticeable surface changes for all the treated samples compared with untreated mica . the nature and the extent of changes varied for the three methods of treatment . wettability alteration toward less water-wet was also observed for sandstone core samples treated by the biosurfactant solution and by
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Experimental investigation of the dissolution of quartz by
Aug 10, 2006· All water used for preparing the solutions was purified by a Milli‐Q (Elix‐10 and Milli‐Q Gradient A10) water purification system. To prepare the surfaces (mica sheets and quartz plates) for use in these studies, a thin Influence of pH and temperature on the early stage of mica alteration, Applied Geochemistry, 10.1016/j.apgeochem
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MICA is the leading water mitigation suite in the restoration industry. MICA is the simple, efficient, and comprehensive solution that provides benefits for the insurance carrier, the adjuster and the contractor. Insurance carriers get the benefit of a real-time audit by exceptions and improved cycle time due
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Fertilizers & Soil Amendments Flashcards Quizlet
yellow or brown hydrous mineral found as an alteration product of mica and other minerals which greatly expands when heated and is used as a moisture-retentive medium from growing plants Perlite light, porous rocked formed by cracking of volcanic glass during cooling which is
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Mineral alteration Wikipedia
Mineral alteration refers to the various natural processes that alter a mineral's chemical composition or crystallography.. Mineral alteration is essentially governed by the laws of thermodynamics related to energy conservation, relevant to environmental conditions, often in presence of catalysts, the most common and influential being water (H 2 O).. The degree and scales of time in which
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Cationic Hofmeister Series of Wettability Alteration in
Cationic Hofmeister Series of Wettability Alteration in Mica−Water− angle of aqueous chloride salt solutions on mica immersed in ambient alkane increases from near-zero to values exceeding the water surface.15−17 Mineral-water interfaces have classically been studied using titration measurements, electrokinetic techniques such as
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Stability Evaluation of Cation Bridging on Muscovite
By using molecular dynamics (MD) simulations and potential of mean force (PMF) calculations, we studied the stability of model acidic oil molecules (C 9 H 19 COOH or C 9 H 19 COO –) adsorbed on muscovite surfaces in aqueous solution.The muscovite surfaces are covered by different cations (Na +, K +, Mg 2+, and Ca 2+).It was found that Ca 2+-covered muscovite surface significantly enhances
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Nanoscale Characterization of Biotite Alteration at pH 7
fig 1. Variations of surface morphologies on (001) biotite surface as the experiment progresses. It shows the three series of alteration, A -B C corresponding to Milli Q water, D E F
Ask for priceALTERATION OF MICA SURFACES BY WATER AND SOLUTIONS
ALTERATION OF MICA SURFACES BY WATER AND SOLUTIONS . By A. &apos, P. G. Rouxhet and A. J of particle sizes varying from less than 5/tm to 500am were allowed to stand in distilled water and in several NaNO3 solutions. The modifications of their surface were determined by thermovolumetric measurements of the extra-water associated with the
Ask for priceFormation Permeability Damage by Mica Alteration and
Carbonate contents of effluents and sands were determined by titrating with hydrochloric acid. In the case of aqueous effluent solutions, a known volume of solution was titrated with 0.01-normal hydrochloric acid to below pH 7. A glass electrode and pH meter were used to pH 7. A glass electrode and pH meter were used to determine pH values. JPT
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(PDF) 23-3-247 Alteration of Micas luis felipe mitre del
The ore minerals break more easily than representing intermediate stages of alteration are sub- the mica and were collected in the finest fraction, less microscopic mixtures of two or more structural than 30/~m dia. Final separation of different fresh phases, and because water in some specimens was not mica species from the micas in various
Ask for priceInfluence of pH and temperature on the early stage of mica
tems, mica dissolution results in forming illite and smectite that in turn promote pressure solution in sedimentary basins (Gerard et al., 2002; Meyer et al., 2006). Although the understanding of mica alteration is crucial to the dynamics of water–rock interac-tion, studies on mica
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Influence of pH and temperature on the early stage of mica
To directly link the physicochemical solution properties to the dominant surface processes controlling phyllosilicate alteration, we used a custom-build hydrothermal atomic force microscope to
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CHARACTERIZATION OF ALTERED MICA FROM SOKLI,
CHARACTERIZATION OFALTERED MICA FROM SOKLI, NORTHERN FINLAND M. RAMA 1*, O. EKLUND,S.FRÖJDÖ 1,J.-H.SMÅTT 2,M.LASTUSAARI 3, AND T. L AIHO 4 1Geology and Mineralogy, Faculty of Sciences and Technology, Åbo Akademi University, FI-20500 Turku, Finland 2Department of Natural Sciences, Process Chemistry, Åbo Akademi University, FI-20500 Turku, Finland 3Centre for Materials and Surfaces
Ask for priceAdhesion energy between mica surfaces: Implications for
The H 3 O + ‐mica surface did not show a hydration force between the surfaces [Pashley, 1981], which indicates that the frictional coefficient of mica under wet conditions, caused by contact with deionized water, could be similar to that under dry conditions at higher pressures than the osmotic pressure caused by the presence of the EDL.
Ask for priceدانلود مقاله Wettability alteration of mica and sandstone
AFM analyses of the mica surfaces reveales noticeable surface changes for all the treated samples compared with untreated mica . the nature and the extent of changes varied for the three methods of treatment . wettability alteration toward less water-wet was also observed for sandstone core samples treated by the biosurfactant solution and by
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Layer silicate clays Genesis and classification
Alteration of muscovite mica to fine grained mica is the is broken down in size to the colloidal range, part of the potassium is lost and some silicon is added from weathering solutions. Net result is the less rigid crystal structure and an The acidic water will react with the rock surfaces and tend to dissolve the K ion and silica from
Ask for priceMICA Mitigation Management Software Next Gear Solutions
MICA is the leading water mitigation suite in the restoration industry. MICA is the simple, efficient, and comprehensive solution that provides benefits for the insurance carrier, the adjuster and the contractor. Insurance carriers get the benefit of a real-time audit by exceptions and improved cycle time due
Ask for priceStability Evaluation of Cation Bridging on Muscovite
By using molecular dynamics (MD) simulations and potential of mean force (PMF) calculations, we studied the stability of model acidic oil molecules (C 9 H 19 COOH or C 9 H 19 COO –) adsorbed on muscovite surfaces in aqueous solution.The muscovite surfaces are covered by different cations (Na +, K +, Mg 2+, and Ca 2+).It was found that Ca 2+-covered muscovite surface significantly enhances
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An Evaluation of Spontaneous Imbibition of Water into Oil
Some surface-active chemicals are able to improve the spontaneous imbibition of water into oil-wet carbonates. In this work, the oil recovery from oil-wet reservoir cores was compared using aqueous solutions of an ethoxylated alcohol (EA) and a cationic surfactant (C12TAB). The experiments were conducted at room temperature using short (∼5 cm) and long (∼30 cm) cores with initial water
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