dolomite et applications

Genesis and pore evolution of dolomite reservoir in the ...

Xiong, Y, Tan, XC, Wu, KY, et al. (2020) Research advances,geological implication and application in Ordos Basin of the "pore-size controlled precipitation"in diagenesis of carbonate rock reservoir. Journal of Palaeogeography 22(04): 744 – 760. Google Scholar

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(PDF) Dolomite: Occurrence, Evolution and Economically ...

C Unit cell parameters of type A and type B dolomite after Rosen et al., 1989; Warren, 1990 . J. Warren r Earth-Science Re Õ iews 52 2000 1– 81 17 two types of dolomite are distinct, and are ...

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Thermodynamic Modelling of Dolomite Behavior in …

The compact thermodynamic approach to the systems containing calcium, magnesium, and carbonate species is referred to dissolution of dolomite, as an example of nonequilibrium ternary salt when introduced into aqueous media. The study of dolomite is based on all attainable physicochemical knowledge, involved in expressions for equilibrium constants, where the species of the system are …

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Applications and advances of the magnesium isotope on …

Request PDF | Applications and advances of the magnesium isotope on the 'dolomite problem' | As a long standing enigma, the 'dolomite problem' not only is a basic geological problem but also has ...

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Adsorption of Orange I by modified dolomite: …

Otsuka found that dolomite is decomposed in two stages when the CO 2 partial pressure is greater than 100 mm Hg.Since we used a 40 mg sample, the CO 2 partial pressure during decomposition is expected to be low. Rodriguez-Navarro et al. showed that the notion of 'half-decomposition' which involves the generation of CaCO 3 and MgO does not have a mechanistic meaning, but there is one …

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Genesis and pore evolution of dolomite reservoir in the ...

The micritic dolomite has δ 13 C and δ 18 O values of −2.38‰ to + 0.89‰ and −7.97‰ to −5.85‰, respectively. The grain dolostone has δ 13 C and δ 18 O values of −2.08 to + 0.01‰ and −9.19‰ to −5.83‰, respectively. In summary, data for the muddy to micritic dolomite are similar to those for the grain dolostone.

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dolomite | Formation, Structure, Properties, Uses, & Facts ...

Dolomite, type of limestone, the carbonate fraction of which is dominated by the mineral dolomite, calcium magnesium carbonate. Along with calcite and aragonite, dolomite makes up approximately 2 percent of the Earth's crust. Learn more about the …

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Dolomie, composition minérale, propriétés et application

Dolomie, composition minérale, propriétés et application. La dolomite est un minéral de la classe des carbonates, carbonate double de calcium et de magnésium. C'est aussi une roche carbonatée sédimentaire composée de la dolomite minérale sont plus de 95% et quelques impuretés.

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REPLACEMENT OF CEMENT WITH DOLOMITE POWDER: …

applications prefer dolomite as a filler material due to its higher strength and hardness. Dolomite is ... replacement percentage of dolomite was determined. L.Ranjith Kumar, et al (2017) evaluated that Replacement of cement with dolomite powder is …

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Modern dolomite formation caused by seasonal cycling of ...

The "Dolomite Problem" has been a controversy for over a century, owing to massive assemblages of low-temperature dolomite in ancient rocks …

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Nanomaterials for subsurface application: study of ...

The ability to transport nanoparticles through porous media has interesting engineering applications, notably in reservoir capacity exploration and soil remediation. A series of core-flooding experiments were conducted for quantitative analysis of functionalized TiO2 nanoparticles transport through various porous media including calcite, dolomite, silica, and limestone rocks. The adsorption …

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Removal of catechol from water by modified dolomite ...

SEM images of dolomite and D800 are shown in Figure 2. The SEM analysis of dolomite indicates the presence of cleavages and shows an apparent preferential orientation of dolomite crystals along the c-axis. Dolomite belongs to the rhombohedral crystalline system, which has a threefold inversion axis and is therefore anisotropic (De Aza et al ...

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Liposomes and lipid nanoparticles | Dolomite Microfluidics

Liposomes and lipid nanoparticles. Liposomes and lipid nanoparticles (LNPs) are very well known, and their popularity is increasing with new applications and technologies emerging steadily. Microfluidic technology enables the increased production control over the lipid's/liposome's physical properties, especially in terms of small mean size ...

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Evaluation of dolomite as catalyst in the ...

Wei et al., obtained 75.3 % FAME yield in the olive oil transesterification during 3 hours with a 12:1 molar ratio using 6 % wt/wt of dolomite at 318.15 K. Ngamcharussrivichai, Nunthasanti, Tanachai, and Bunyakiat.,, performed methanolysis at 333.15 K during 3 hours with palm kernel oil obtaining 98 % of the methyl ester content with 6 % wt/wt ...

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Thermal behavior of natural dolomite | SpringerLink

The dolomite-based sorbents are used in low temperatures to reduce the emission of pollutants such as carbon, sulfur and nitrogen oxides, hydrogen chloride, and fluoride [1, 3, 4]. The applications of dolomite depend on its physicochemical, structural, and thermodynamic properties.

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Dolomite as a tracer for the source regions of Asian dust ...

Dolomite, of detrital origin, was detected only in samples taken from the regions on the north margin of Tibetan Plateau (NMTP). Thus the NMTP-originated dust can be detected by the presence of detrital dolomite, and applications are performed for the modern dust in Beijing and the ancient dust deposits of loess in north China.

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LA -ICP -MS U -Pb ca rbonate geo chronology : …

1 1 LA -ICP -MS U -Pb ca rbonate geo chronology : strategies, progress, and 2 application to fracture -fill calcite 10 2Department of Geology, Trinity Col lege Dublin, Dublin 2, Ireland 11 3Department of Biology and Environmental Science, Linnaeus University, 39231 Kalmar, 12 Sweden 13 4British Geological Survey, Environmental Science Centre, Nottingham, NG12 5GG, UK

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Sabkha dolomite as an archive for the magnesium isotope ...

Since dolomite formation has a negative D dolomite-solution value, it may increase the d 26 Mg brine value (e.g., Higgins and Schrag, 2010;Li et al., 2015;Blättler et al., 2015; Shalev et al ...

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Differential adsorption of hydrolytic polymaleic anhydride ...

Selective adsorption of an eco-friendly and efficient depressant, 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), onto dolomite has been performed for the effective flotation of fluorapatite ...

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The effect of dolomite amendment on soil organic carbon ...

Dolomite was chosen because it is widely used as a good lime material in agriculture in China in the recent years and has the benefit of simultaneously providing Ca and Mg during the process of counteracting soil acidity (Radziemska et al. 2018; Shaaban et al. 2015; Wu et al. 2020). The specific objectives of this study were to (1) assess the ...

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Grain growth kinetics of dolomite, magnesite and calcite ...

The rates of grain growth of stoichiometric dolomite [CaMg(CO3)2] and magnesite (MgCO3) have been measured at temperatures T of 700–800°C at a confining pressure P c of 300 MPa, and compared with growth rates of calcite (CaCO3). Dry, fine-grained aggregates of the three carbonates were synthesized from high purity powders by hot isostatic pressing (HIP); initial mean grain sizes of …

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2 analysis on the performances of dolomite and limestone

1 Ca-looping for postcombustion CO2 capture: A comparative 2 analysis on the performances of dolomite and limestone J. M. Valverdea∗, P. E. Sanchez-Jimenezb, L. A. Perez-Maquedab 3 a Faculty of Physics. University of Seville. Avenida Reina Mercedes s/n, 41012 Sevilla, Spain 4 b Instituto de Ciencia de Materiales de Sevilla (C.S.I.C.-Univ. 5 6 Seville), Americo Vespucio …

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Effects of Dolomite Application on Plant Growth ...

These results indicated that plant ages have a strong influence on the incidence of leaf browning in lettuce plant (Jiang et al., 2004). Thus, dolomite application to lettuce plant at early growth stage should be effective for controlling PPO activity. While late dolomite …

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