Littérature scientifique sur le sujet « Non-aqueous synthesis »

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Articles de revues sur le sujet "Non-aqueous synthesis"

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Zhang, Wu Ying, and Bao Hua Zhang. "Synthesis of Aqueous Non-Isocyanate Polyurethane." Applied Mechanics and Materials 618 (August 2014): 184–88. http://dx.doi.org/10.4028/www.scientific.net/amm.618.184.

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Cyclic carbonate emulsion was prepared by means of polymerization technology using DOMA (which was synthesized by glycidyl methacrylate and carbon dioxide) and acrylic monomers. Effect of temperature, amount of emulsifier, initiator, DOMA and acrylic acid on properties of the emulsion and the film were studied. It was found that with 4% emulsifier, of which the ratio of OP-10 and SDS was 2:1, and 0.4% initiator, 3.5% acrylic acid, 13.3% DOMA, the temperature was 78°C. Under this condition the performance was the best, and then the aqueous non-isocyanate polyurethane was synthesized by cyclic c
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van Erp, W. A., H. W. Kouwenhoven, and J. M. Nanne. "Zeolite synthesis in non-aqueous solvents." Zeolites 7, no. 4 (1987): 286–88. http://dx.doi.org/10.1016/0144-2449(87)90027-3.

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Yangibaev, S. Nuraliev S. R. Ernazarov K.A. "Modernization of the Catalyst Composition for the Synthesis of Acrylic Acid Nitrile in Aqueous and Non-Aqueous Media." INTERNATIONAL JOURNAL OF PHARMACEUTICAL AND BIO-MEDICAL SCIENCE 01, no. 09 (2021): 197–200. https://doi.org/10.47191/ijpbms/v1-i9-04.

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The effect of the components of the catalyst solution for the hydrocyanation of acetylene on the activity and selectivity of the process under liquid-phase conditions has been studied. The introduction of ZnSO 4 and ZnO additives into the shop catalyst did not give a positive effect under these conditions. Studies of catalysts in non-aqueous media lead to an increase in their activity and selectivity in comparison with aqueous media. It has been shown that the composition of the CuCl - NMP - DMF catalyst is characterized by high activity (up to 32 g / l.h.) and selectivity (83-90%), i.e. the a
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Scott, Robert W. J., Neil Coombs, and Geoffrey A. Ozin. "Non-aqueous synthesis of mesostructured tin dioxide." Journal of Materials Chemistry 13, no. 4 (2003): 969–74. http://dx.doi.org/10.1039/b206002g.

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Petkar, Manish, Arvind Lali, Paolo Caimi, and Moreno Daminati. "Immobilization of lipases for non-aqueous synthesis." Journal of Molecular Catalysis B: Enzymatic 39, no. 1-4 (2006): 83–90. http://dx.doi.org/10.1016/j.molcatb.2006.01.034.

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Armes, S. P., and M. Aldissi. "Non-aqueous polypyrrole colloids: Synthesis and characterization." Synthetic Metals 37, no. 1-3 (1990): 137–44. http://dx.doi.org/10.1016/0379-6779(90)90140-g.

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Bonham, J. A., M. A. Faers, and J. S. van Duijneveldt. "Non-aqueous microgel particles: synthesis, properties and applications." Soft Matter 10, no. 47 (2014): 9384–98. http://dx.doi.org/10.1039/c4sm01834f.

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Niwayama, Satomi. "Non-Enzymatic Desymmetrization Reactions in Aqueous Media." Symmetry 13, no. 4 (2021): 720. http://dx.doi.org/10.3390/sym13040720.

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Symmetric organic compounds are generally obtained inexpensively, and therefore they can be attractive building blocks for the total synthesis of various pharmaceuticals and natural products. The drawback is that discriminating the identical functional groups in the symmetric compounds is difficult. Water is the most environmentally benign and inexpensive solvent. However, successful organic reactions in water are rather limited due to the hydrophobicity of organic compounds in general. Therefore, desymmetrization reactions in aqueous media are expected to offer versatile strategies for the sy
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Varghese, Mini, R. Aiswarya, and K. P. Surendran. "Non Aqueous Synthesis of Titania Ink for Printed Electronics." Materials Science Forum 830-831 (September 2015): 573–76. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.573.

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A non-aqueous synthesis technique of room temperature curable titania ink, screen printed on flexible BoPET film for printed electronics applications is reported. The phase evolution of rutile titania powder, formulation of a fast curing titania ink, as well as the microstructure and dielectric properties of printed pattern are discussed. In terms of ease of synthesis, cost effectiveness and faster curing time, the developed ink is found to be advantageous over water based dielectric inks.
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Bibby, D. M., and M. P. Dale. "Synthesis of silica-sodalite from non-aqueous systems." Nature 317, no. 6033 (1985): 157–58. http://dx.doi.org/10.1038/317157a0.

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Thèses sur le sujet "Non-aqueous synthesis"

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Rajaeian, Babak. "Synthesis of polymeric nanocomposite membranes for aqueous and non-aqueous media." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/410.

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Thin film composite (TFC) membranes have long been used by many large-scale applications (i.e., water and wastewater treatment). Recently, conventional polymeric TFC membranes are facing with short longevity due to high fouling tendency and susceptibility at extreme operational conditions. On the other hand, ceramic membranes are also suffering from disadvantages like low selectivity, unreliable control over porosity and pore size which makes it difficult to achieve a reproducible final product. The aim of this project was to develop a high selective TFC membranes incorporated by functionalize
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Petkar, Sagar Sudhir. "Non-aqueous synthesis and reactivity of hexanuclear polyoxotungstates." Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401838.

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Redshaw, Carl. "Oxo and organoimido precursors for non-aqueous polytungstate synthesis." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328135.

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Shakir, Sa'ed A. "Studies of stabilization of non-aqueous polymer dispersions with diblock copolymers." Thesis, Loughborough University, 1987. https://dspace.lboro.ac.uk/2134/19421.

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A diblock copolymer of Poly (Styrene-b- [ethylene-co-propylene]) has been used as a stabilizer in non-aqueous dispersion polymerizations of methyl methacrylate and vinyl acetate in n-heptane. The particles thus produced were stabilized by well defined surface layers of ethylene-propylene copolymer chains. The dependence of the particle size on the stabilizer, monomer and initiator concentrations was studied. Both seeded and one-shot polymerization techniques were investigated. Polymer particles were characterized by transmission electron microscopy to determine particle shape and size. The lon
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Jones, Denise Michelle. "Specific interactions of deoxynucleosides with potassium cations in non-aqueous media." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/27258.

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Ward, Andrew David. "A study of the single-shot dispersion polymerisation of ethyl methacrylate in non-aqueous media." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240730.

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Fernandez, Salazar Franz Rene. "A thermodynamic study on cation dibenzocryptand 222 and cation-dibenzo 18 crown 6 complexation in non-aqueous media." Thesis, University of Surrey, 1988. http://epubs.surrey.ac.uk/844484/.

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A general review on macrocyclic ligands with particular emphasis to dibenzocryptand 222 and dibenzo 18 crown 6 is given in the first part of the thesis (Chapter 1). This is followed by an exhaustive literature survey on the stability constants (hence free energies of complexing), enthalpies and entropies of metal cations with cryptands (dibenzocryptand 222, benzocryptand 222, cryptand 222) and crown ethers (dibenzo 18 crown 6, benzo 18 crown 6, 18 crown 6) in water and in non-aqueous solvents at 298.15 (Chapter 2). The experimental part (Chapter 3) also includes a detailed description of the p
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Chefson, Amandine. "Towards the use of P450 enzymes in synthesis : cofactor replacement and activity of CYP3A4 in non-aqueous media." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100784.

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Enantioselective synthesis is one of the most important challenges of today's synthetic chemists. In particular, the hydroxylation of non-activated C-H bonds remains a significant challenge that few chemical catalysts have succeeded to overcome. The P450 enzymes, a family of heme-containing monooxygenases including more than 5000 known isoforms, are gaining considerable attention due to their ability to catalyze the very difficult regio- and stereo-selective oxidation of inactivated C-H bonds. The use of such enzyme is however limited by their functional complexity, low activity, need for cofa
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Huston, Michael Edward. "Synthesis and study of anthrylmethylpolyamine conjugate fluorescence probes for metal and non-metal ion detection in aqueous solutions /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487683049375178.

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Gabathuse, Anne Onalethata. "Synthesis of enantio-pure amides by reversal of the Geobacillus pallidus RAPc8 amidase hydrolysis reaction in non-aqueous media." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/16916.

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Amidases are hydrolytic enzymes that catalyze the hydrolysis of amides to their corresponding carboxylic acids and ammonia. Amidases are ubiquitous in nature, and they have been isolated from a wide range of microorganisms, the most common source being bacteria. Amidases are recognized as potential industrial biocatalysts in processes that involve the synthesis of chiral compounds, mostly used in the pharmaceutical, agrochemical and food industries. The discovery of amidases from extremophiles has increased the potential for application of these enzymes for the development of new processes. In
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Livres sur le sujet "Non-aqueous synthesis"

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F, Hepp Aloysius, and United States. National Aeronautics and Space Administration., eds. Room-temperature synthesis of CuInQ₂(Q=S or Se) in non-aqueous solution using an organoindium reagent. National Aeronautics and Space Administration, 1993.

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F, Hepp Aloysius, and United States. National Aeronautics and Space Administration., eds. Room-temperature synthesis of CuInQ₂(Q=S or Se) in non-aqueous solution using an organoindium reagent. National Aeronautics and Space Administration, 1993.

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F, Hepp Aloysius, and United States. National Aeronautics and Space Administration., eds. Room-temperature synthesis of CuInQ₂(Q=S or Se) in non-aqueous solution using an organoindium reagent. National Aeronautics and Space Administration, 1993.

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F, Hepp Aloysius, and United States. National Aeronautics and Space Administration., eds. Room-temperature synthesis of CuInQb□-s□b2b□-s□s(Q=S or Se) in non-aqueous solution using an organoindium reagent. National Aeronautics and Space Administration, 1993.

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United States. Environmental Protection Agency. Office of Science and Technology. Engineering and Analysis Division. and United States. Environmental Protection Agency., eds. Environmental assessment of proposed effluent limitations guidelines and standards for synthetic-based drilling fluids and other non-aqueous drilling fluids in the oil and gas extraction point source category. Office of Water, Office of Science and Technology, Engineering and Analysis Division, U.S. Environmental Protection Agency, 1999.

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United States. Environmental Protection Agency. Office of Science and Technology. Engineering and Analysis Division., ed. Environmental assessment of proposed effluent limitations guidelines and standards for synthetic-based drilling fluids and other non-aqueous drilling fluids in the oil and gas extraction point source category. Office of Water, Office of Science and Technology, Engineering and Analysis Division, U.S. Environmental Protection Agency, 1999.

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United States. Environmental Protection Agency. Office of Science and Technology. Engineering and Analysis Division, ed. Economic analysis of proposed effluent limitations guidelines and standards for synthetic-based drilling fluids and other non-aqueous drilling fluids in the oil and gas extraction point source category. Office of Water, Office of Science and Technology, Engingeering and Analysis Division, U.S. Environmental Protection Agency, 1999.

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United States. Environmental Protection Agency. Office of Science and Technology. Engineering and Analysis Division, ed. Economic analysis of final effluent limitations guidelines and standards for synthetic-based drilling fluids and other non-aqueous drilling fluids in the oil and gas extraction point source category. U.S. Environmental Protection Agency, Office of Water, Engineering and Analysis Division, 2000.

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(Editor), Giacomo Carrea, and Sergio Riva (Editor), eds. Organic Synthesis with Enzymes in Non-Aqueous Media. Wiley-VCH, 2008.

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Riva, Sergio, and Giacomo Carrea. Organic Synthesis with Enzymes in Non-Aqueous Media. Wiley & Sons, Limited, John, 2008.

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Chapitres de livres sur le sujet "Non-aqueous synthesis"

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Clapés, Pere, Gloria Caminal, Josep A. Feliu, and Josep López-Santín. "Peptide Synthesis in Non-Aqueous Media." In Methods in Non-Aqueous Enzymology. Birkhäuser Basel, 2000. http://dx.doi.org/10.1007/978-3-0348-8472-3_7.

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Errington, R. J. "General Strategies for Non-Aqueous Polyoxometalate Synthesis." In Polyoxometalate Molecular Science. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0091-8_3.

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Becker, James Y., Elias Shakkour, Shimon Yatziv, and Baruch Zinger. "Formation of Heterocyclic Compounds by Electrochemical Oxidation of Hetero-Allenes in Non-Aqueous Media." In Electroorganic Synthesis. Routledge, 2023. http://dx.doi.org/10.1201/9780203758571-29.

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O′Connor, L. H., K. H. Pearson, H. Heaster, and P. Hoggard. "Racemic and Optically Active Cobalt(III) Complexes of Cdta, Edta, and Pdta in Non-Aqueous Solvents." In Inorganic Syntheses. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132548.ch20.

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Wipff, G., and L. Troxler. "MD Simulations on Synthetic Ionophores and Their Cation Complexes: Comparison of Aqueous/Non-Aqueous Solvents." In Computational Approaches in Supramolecular Chemistry. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1058-7_22.

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Li, Qiang, Dan Yu Jiang, Ya Jun Fan, and Cheng Zhang. "A Novel Non-Aqueous Solvent Chemical Process to Synthesize Nano-ZrO2." In Key Engineering Materials. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.2060.

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"Non-aqueous liquid-phase reactions." In Chemical Synthesis of Advanced Ceramic Materials. Cambridge University Press, 1989. http://dx.doi.org/10.1017/cbo9780511565014.007.

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"SYNTHESIS VIA ION EXCHANGE IN NON-AQUEOUS SOLVENTS." In Synthetic Coordination Chemistry: Principles and Practice. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789812831378_0005.

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Minita Ojha, Dr. "ASYMMETRIC SYNTHESIS BY ORGANOCATALYSIS: A GREENER APPROACH." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 25. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs25p2ch3.

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Chirality is an important characteristic of several naturally occurring biological compounds. Thus, asymmetric synthesis i.e., generation of chiral centre in any synthetic compound during a reaction has drawn much attention of organic chemists. Various catalysts are being used by chemists for asymmetric synthesis but organocatalysts have been proved to be most powerful tool due to simple handling, inertness, and easy availability, non-toxicity, being metal-free and economic. Organocatalysis has become highly useful technique for asymmetric synthesis. Using this method various chiral heterocycl
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Dinodia, Monica. "Greener Approach towards the Synthesis of Nitrogen Based Heterocycles." In Strategies Towards the Synthesis of Heterocycles and Their Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.108489.

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The preferable application of green chemistry in research is to utilize environment benign, mild, non toxic, reproducible catalyst and efficient solvents in synthesis of molecules. Use of green chemistry techniques had enabled in dramatically reducing chemical waste and reaction times as has recently been reported in several organic syntheses reactions. Greener routes are required in the synthesis of N-heterocycles, due to the remarkable importance of these compounds in medicinal chemistry. This chapter is dedicated to the synthesis of N containing heterocyclic compounds using eco-friendly sol
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Actes de conférences sur le sujet "Non-aqueous synthesis"

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Pospelov, M., and A. Fokin. "Inhibition in Hydrocarbon and Hydrocarbon-Aqueous Media." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89137.

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Abstract Different proposed approaches to evaluating the mechanisms of corrosion inhibition of organic inhibitors of diphilic structure that contain both the polar and non-polar fragments are considered, special attention being paid to inhibition in media containing an aqueous electrolyte and a hydrocarbon phase. Critical analysis of the results of studies including those of the authors indicate that the broadly accepted conception of chemosorption and donor-acceptor bond on metal surfaces as the main factors responsible for the protective ability of an organic inhibitor cannot be applied to t
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Nicolas, George, Amannie Kweik, and Zahid Amjad. "Inhibitory Activity of Biopolymers, Synthetic Polymers, and Phosphonates against the Formation of Calcium Phosphate Scale in Cooling Water Systems." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09013.

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Abstract The inhibition of calcium phosphate (Ca/P) precipitation by natural organic polyelectrolytes, bio- and hybrid polymers, homo- and co-polymers of acrylic acid and maleic acid containing different functional groups was examined in aqueous solution. Additionally, commonly used phosphonates were also evaluated as Ca/P inhibitors. It has been found that performance of additive (polymeric and non-polymeric) as Ca/P inhibitor depends upon additive concentration, ionic charge, and molecular weight. Based on the inhibition data, the ranking in terms of decreasing effectives is: biopolymer &amp
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Horn, Joanne, Sue Martin, Angel Rivera, Peter Bedrossian, and Tiangan Lian. "Potential Biogenic Corrosion of Alloy 22, a Candidate Nuclear Waste Packaging Material, under Simulated Repository Conditions." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00387.

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Abstract The U.S. Department of Energy has been charged with assessing the suitability of a geologic nuclear waste repository at Yucca Mountain (YM), NV. Microorganisms, both those endogenous to the repository site and those introduced as a result of construction activities, may contribute to the corrosion of metal nuclear waste packaging and thereby decrease their useful lifetime as barrier materials. Evaluation of potential Microbiological Influenced Corrosion (MIC) on candidate waste package materials was undertaken in reactor systems incorporating the primary elements of the repository: YM
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Chambers, Brian D., Sridhar Srinivasan, Russell Kane, and Michael A. Blades. "An Experimental Method for Evaluation of Crude Corrosivity – Naphthenic Acid and Sulfidic Corrosion of Oil Fractions." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01564.

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Abstract Conventional rules for assessment of naphthenic acid / sulfidic corrosion and consequent operating risk have evolved over several decades. These primarily experience-based rules may translate poorly to processing of crude oil feedstock from new sources, often leading to over-conservative alloy requirements or inspection schedules or non-conservatism and unknown levels of operational risk. Several laboratory techniques have been used historically for the assessment of crude corrosivity, corrosion by high temperature, non-aqueous attack from naphthenic acids or sulfur species. This pape
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Skordalou, Georgia, and Konstantinos D. Demadis. "pH-Responsive Copolymers as Silica Scale Inhibitors." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17703.

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Abstract In the present work two synthetic co-polymers, U-PVPyPEGMA-H and Q-PVPyPEGMA-H, with pyridine and polyethylene glycol grafts on a methacrylate backbone, were studied for their potential to influence silicic acid polycondensation in vitro in silicate-supersaturated (500 ppm, 8.3 mM) aqueous solutions. The aim of this study was to evaluate the impact of several experimental parameters on the silicic acid polycondencation process. Working pH plays a significant role on the silicification reaction either in the absence or presence of polymers. In the presence of polymers, pH affects the p
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Hamdi, Mohab, Amannie Kweik, Ahmad Almakrani, and Zahid Amjad. "Extending Phosphonates Performance in Simulated Cooling Waters." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11054.

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Abstract Organic phosphonates are a family of compounds widely used as mineral scale and corrosion inhibitors in a variety of applications in industrial processes. The phenomena of scale and corrosion inhibition has been studied extensively. This study reports the tolerance of phosphonates with hardness ions under a variety of test conditions (i.e., temperature, type and concentration of hardness ions, total dissolved solids, etc.). The phosphonates tested include: hydroxyphosphono acetic acid, HPA; aminotris(methylene phosphonic acid), AMP; 1-hydroxyethylidine 1,1-diphosphonic acid, HEDP; 2-p
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WANG, D., R. B. YU, N. KUMADA, et al. "NON-AQUEOUS SYNTHESIS OF NOVEL LOW-DIMENSIONAL ZIRCONIUM PHOSPHATES." In Proceedings of the International Symposium on Solid State Chemistry in China. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776846_0030.

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Sivakumar, N., A. Narayanasamy, R. Justin Joseyphus, B. Jeyadevan, and K. Tohji. "Aqueous Synthesis of Non-superparamagnetic MnFe2O4 Nanoparticles and their Magnetic Properties." In WATER DYANMICS: 4th International Workshop on Water Dynamics. AIP, 2007. http://dx.doi.org/10.1063/1.2721267.

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Yao, Tingting, Shengbo Gao, Quanhui Li, Luoyun Zheng, and Jiaying Xin. "The Lipase-catalyzed Synthesis of Sugar Ester in Non- aqueous Medium." In International Conference on Education, Management, Computer and Society. Atlantis Press, 2016. http://dx.doi.org/10.2991/emcs-16.2016.77.

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Ahmad, M. Z., W. Wlodarski, J. Chang, et al. "P1.7.3 Non-aqueous synthesis of In2O3 nanoparticles and its NO2 gas sensing properties." In 14th International Meeting on Chemical Sensors - IMCS 2012. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012. http://dx.doi.org/10.5162/imcs2012/p1.7.3.

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Rapports d'organisations sur le sujet "Non-aqueous synthesis"

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Melby, Jeffrey, Thomas Massey, Fatima Diop, et al. Coastal Texas Protection and Restoration Feasibility Study : Coastal Texas flood risk assessment : hydrodynamic response and beach morphology. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41051.

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The US Army Corps of Engineers, Galveston District, is executing the Coastal Texas Protection and Restoration Feasibility Study coastal storm risk management (CSRM) project for the region. The project is currently in the feasibility phase. The primary goal is to develop CSRM measures that maximize national net economic development benefits. This report documents the coastal storm water level and wave hazard, including sea level rise, for a variety of flood risk management alternatives. Four beach restoration alternatives for Galveston Island and Bolivar peninsula were evaluated. Suites of synt
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