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Dissertations / Theses on the topic 'Liquid separator'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Dickson, Philip James. "Gas liquid separation within a novel axial flow cyclone separator." Thesis, Cranfield University, 1998. http://hdl.handle.net/1826/3999.

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Cyclone separators have been described in detail and, although substantial research has been performed on solid / gas devices, the use of cyclones for gas / liquid separation has been comparatively ignored; this is particularly true for higher concentrations of liquid and for degassing applications. Consequently no generic models are available which will predict separation efficiency or pressure drop for all designs of cyclone. A novel design of axial flow cyclone called WELLSEP was examined for the purpose of degassing. This design was not believed to be optimal and no design criteria or perf

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2

Monsen, Gisle Otto Tviberg. "Modeling of a centrifugal separator for dispersed gas-liquid flows." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18678.

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Natural gas is a vital component of the worlds supply of energy. In Norway all the gas can be found offshore where it needs to processed before transport. A vital part of the processing is gas and liquid separation. Current gas-liquid separators are big and expensive, and the offshore industry is looking for more compact separators. One of the more prominent technologies is the NNNGLseparator developed at NTNU. To further identify its possibilities, a thorough research program has been startedIn this thesis one-dimensional models describing pressure drop and separation performance of the

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3

Kang, Ming-Fang. "INVESTIGATION OF PASSIVE CYCLONIC GAS-LIQUID SEPARATOR PERFORMANCE FOR MICROGRAVITY APPLICATIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1481295717930627.

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4

LAPIZCO-ENCINAS, BLANCA H. "MICRO OPEN PARALLEL PLATE SEPARATOR: PERFORMANCE AND APPLICATIONS." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1046966166.

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5

SUH, JUNWOO. "THE DYNAMIC CHARACTERISTICS OF A LIQUID-GAS INTERFACE IN MICROSCALE PORES." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1037384143.

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6

Gardner, Nicola Jane. "The development of a high efficiency centrifugal separator for gas/liquid mixtures at high pressure." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337168.

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7

Gruselle, François. "Study of an integrated pump and gas-liquid separator system and application to aero-engine lubrication systems." Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209755.

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The subject of this PhD thesis is the development of an efficient system that can simultaneously pump and separate a gas-liquid mixture, in particular an oil-air mixture. Two-phase flows are encountered in many applications (petroleum extraction, flow in nuclear power plant pumps, pulp and paper processing, etc.) but this study is mainly focused on lubrication systems of aircraft gas turbine engines.<p><p>The pump and separator system (PASS) for two-phase flows developed in this PhD thesis aims to perform three functions simultaneously:<p>• Send back the oil to the tank (oil pumping)<p>• Separ

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8

Steimes, Johan. "Performance study and modelling of an integrated pump and gas-liquid separator system: Optimisation for aero-engine lubrication systems." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209365.

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A system able to simultaneously separate and pump a gas-liquid mixture was developed.<p>It works efficiently and can be used in many applications (nuclear power plants,<p>pulp and paper processing, petroleum extraction, etc.). However, this pump and separator<p>system (PASS) was especially designed to handle air-oil mixture generated in<p>aero-engine lubrication systems. The PASS combines three important functions of the<p>scavenge part of the lubrication system: the deaeration and deoiling of the air-oil mixture<p>generated in the bearing and gearbox sumps and the pumping of the oil towards<p

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9

Vidal, Luis Enrique Ortiz. "Separação gravitacional de gás em um duto anular inclinado: estudo experimental e modelagem fenomenológica." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18147/tde-08062010-143118/.

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O presente trabalho apresenta um estudo associado à separação de gás para escoamento gás-líquido em um duto anular inclinado. Esse tipo de escoamento e geometria são encontrados em separadores de gás do tipo shroud invertido na indústria de petróleo quando utilizadas técnicas de bombeamento para a exploração de poços. A presença de gás livre a montante da bomba é uma das maiores limitações dos sistemas de bombeamento, por acarretar cavitação e falhas dinâmicas nos equipamentos. O presente estudo tem por objetivo garantir a separação total de gás livre a montante da bomba através da proposição

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10

Elston, Levi J. "The Effect of Variable Gravity on the Cooling Performance of a 16-Nozzle Spray Array." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1221228402.

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11

Cappucci, Giulia. "Design of a flare gas recovery system in an offshore facility." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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This work explains how recovering gas from the flaring in a off-shore platfom. This is possible thanks to a system known as FGRS (Flare Gas Recovery System). The main equipment that I've designed are Liquid Ring Compressor (LRC), separator and heat exchanger.

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12

Waichigo, Martin M. "Alkylammonium Carboxylates as Mobile Phases for Reversed-Phase Liquid Chromatography." Miami University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1134142423.

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13

Simmons, Mark John Harry. "Liquid-liquid flows and separation." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/27793/.

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The transport and separation of oil and water is a vital process to the oil and chemical industries. Fluids exiting from oil wells usually consist of gas, oil and water and these three phases need to be transported and separated before they can be processed further. Operation of the primary separators has often proved to be problematic due to the change in composition of the fluids as the well matures, often accompanied by the build up of sand or asphaltenes. These vessels are very expensive to install so there is motivation to improve their design and performance. One major factor affecting s

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14

Hoettges, Kai F. "Miniaturisation in separation science : liquid-liquid separation on a chip." Thesis, University of Surrey, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252454.

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15

Schuur, Boelo. "Enantioselective liquid-liquid extraction in centrifugal contactor separators." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 2008. http://irs.ub.rug.nl/ppn/.

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16

You, Yuan. "Liquid-liquid phase separation in atmospherically relevant particles." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50466.

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Aerosol particles containing both organic material and inorganic salts are abundant in the atmosphere. These particles may undergo phase transitions when the relative humidity fluctuates between high and low values in the atmosphere. This dissertation focuses on liquid-liquid phase separation in atmospherically relevant mixed organic-inorganic salt particles. Liquid-liquid phase separation has potentially important implications in chemical and physical processes in the atmosphere. A humidity and temperature controlled flow cell coupled to either an optical, fluorescence, or Raman microscope wa

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17

Ola, Pius Dore. "Solvent extraction and liquid membrane containing ionic liquids and deep eutectic solvents for metal separation." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13097323/?lang=0, 2018. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13097323/?lang=0.

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18

Sveier, Marthin. "Study of the Droplet-Interface Dynamics Related to Liquid-Liquid Separators." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19340.

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A widespread use of liquid liquid separators are taking place in many industrial processes, especially in production of hydrocarbons. The separators in oil production are used to separate water from oil, increasing the purity of petroleum and making cleaner produced water in order to meet quality and environmental standards. To improve the performance of the separators it is important to understand the complex dynamics taking place. The scope of this work has been to develop and build a facility for accurately studying coalescence and coalescence time which is a key parameter in separator dime

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19

Gouveia, Andreia Sofia Ladeira dos Santos. "Facilitated CO2 separation membranes: mixing cyano and amino acid-based ionic liquids." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/13676.

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20

Rusten, Emile Simen Augustin. "Numerical study of the droplet-interface dynamic related to liquid-liquid separators." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23078.

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The CFD package OpenFoam with the VOF approach of the interFoam solver is used to simulate water drops in Exxsol D80 oil, with diameter ranging from 100 micrometer to 1000 micrometer. Parasitic currents are caused by the modelling of surface tension force through the CSF approach, and their magnitude is studied to validate the quality of the results.

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21

Vliet, Roland Edward van. "Polymer-solvent liquid-liquid phase separation thermodynamics, simulations & applications /." [Amsterdam : Amsterdam : Instituut voor Technische Scheikunde, Universiteit van Amsterdam] ; Universiteit van Amsterdam [Host], 2002. http://dare.uva.nl/document/64948.

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22

Hemström, Petrus. "Hydrophilic Separation Materials for Liquid Chromatography." Doctoral thesis, Umeå universitet, Kemi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1350.

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The main focus of this thesis is on hydrophilic interaction chromatography (HILIC) and the preparation of stationary phases for HILIC. The mechanism of HILIC is also discussed; a large part of the discussion has been adapted from a review written by me and professor Irgum for the Journal of Separation Science (ref 34). By reevaluating the literature we have revealed that the notion of HILIC as simply partitioning chromatography needed modification. However, our interest in the HILIC mechanism was mainly inspired by the need to understand how to construct the optimal HILIC stationary phase. The

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23

Fang, Yi. "Separation of liquid mixtures by membranes." Thesis, University of Ottawa (Canada), 1997. http://hdl.handle.net/10393/10164.

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The study focused on the interface, morphology and transport involved in pervaporation and reverse osmosis separation of liquid mixtures. The first part of this study concerns pervaporation separation of liquid mixtures. A fluorine-containing surface modifying macromolecule (SMM) was added into a polyethersulfone (PES) membrane casting solution. Because of its lower surface energy, SMM is expected to move up to the top surface of the membrane. The resulting membrane is to have a layer of SMM at the top surface and a PES rich bulk substrate underneath. Asymmetric PES/SMM membranes were fabricat

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24

Hemström, Petrus. "Hydrophilic separation materials for liquid chromatography /." Umeå : Department of Chemistry, Umeå University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1350.

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25

Olagunju, Moses Oladipo. "A study of efficient recovery of liquid from fine air-liquid mists of the form generated in gas turbine bearing chambers using rotating porous disc." Thesis, University of East London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265060.

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26

Pincemaille, Justine. "Interactions et assemblages de prolamines du blé." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG056/document.

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Ce travail de thèse vise à apporter des connaissances structurales et fonctionnelles sur les protéines du gluten. Pour cela, nous utilisons les concepts et méthodes de la physique des polymères et de la matière molle. Plus précisément, nous optimisons un protocole d’extraction basé sur la séparation de phases liquide-liquide. Ce dernier permet d’obtenir des isolats de protéines à différents rapports massiques gluténines/gliadines que nous étudions ensuite dans un solvant eau/éthanol 50/50 (v/v). Les résultats, montrent que les protéines se comportent comme des chaînes de polymères en solvant θ

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27

Kanel, Jeffrey Scott. "Effects of some interfacial phenomena on mass transfer in agitated liquid-liquid dispersions." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/11257.

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28

Bastos, Pedro David Anastácio de. "Separation of azeotropic mixtures using high ionicity ionic liquids." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12208.

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29

Slaymaker, Elizabeth Ann. "Effects of surface active agents on drop size in liquid-liquid systems." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/10260.

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30

Jordan, Alexander Thomas. "Liquid phase plasma technology for inkjet separation." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47543.

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Currently most deinking technologies are dependent upon flotation and dissolved air flotation (DAF) technology in order to separate inkjet ink from fiber and water. Much of this technology is based on ink that is extremely hydrophobic. This made flotation and DAF very easy to use because the ink in the water would very easily move with the air in flotation and be brought to the surface, after which the ink can be skimmed and the pulp can be used. Now that small scale printing has become the norm, there has been a move to high quality, small scale printing. This involves the use of a hydrophil

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31

Dowling, P. D. "Optimisation of electrically augmented liquid phase separation." Thesis, University of Bradford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374913.

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32

Ng, Sin Yuan. "Gas-liquid separation using axial flow cyclones." Thesis, University of Sheffield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419640.

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33

Yen, Pei-Shan. "Supported Liquid Metal Membranes for Hydrogen Separation." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/480.

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Hydrogen (H2) and fuel cells applications are central to the realization of a global hydrogen economy. In this scenario, H2 may be produced from renewable biofuels via steam reforming and by solar powered water electrolysis. The purification required for fuel cell grade H2, whether in tandem or in situ within a catalytic reformer operating at 500 oC or above, would be greatly facilitated by the availability a cheaper and more robust option to palladium (Pd) dense metal membrane, currently the leading candidate. Here we describe our results on the feasibility of a completely novel membrane for

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34

Zou, Yiran. "Gas separation using supported ionic liquid membranes." Thesis, Queen's University Belfast, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517535.

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35

Tizvar, Roza. "Investigation of liquid-liquid extraction process for separation of glycerol and biodiesel." Thesis, University of Ottawa (Canada), 2007. http://hdl.handle.net/10393/27490.

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Biodiesel is a sustainable and environmentally friendly source of energy which is now being used as an alternative for fossil fuels worldwide. Glycerol is the main by-product of biodiesel produced via transesterification and must be removed from biodiesel according to the ASTM Standard D-6751-02. This purification has usually been carried out with liquid-liquid extraction with water as a solvent for glycerol. In commonly-used alkali-catalyzed transesterification of waste cooking oil, the use of large quantities of water alone, as extraction solvent, results in formation of soaps, then emulsion

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36

Fine, Bernard Martin. "Light scattering by aqueous protein solutions that exhibit liquid-liquid phase separation." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/28079.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1994.<br>Includes bibliographical references (leaves 177-184).<br>by Bernard Martin Fine.<br>Ph.D.

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37

Poggemann, Hanna-Friederike. "Investigation on liquid liquid phase separation of lysozyme by dynamic light scattering." Thesis, Stockholms universitet, Fysikum, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-193168.

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The liquid-liquid phase separation (LLPS) of biomolecules is a phenomenon which received a lot of attention in the last years because it is not only related to theformation of membraneless organelles but also to neurodegenerative diseases. Lysozyme is a globular protein that undergoes LLPS in a buffer salt system andfor that it is well investigated with several techniques like microscopy, dynamic lightscattering (DLS) or small-angle X-ray scattering. In this work we investigate the effect of temperature, solvent and sample con-centration on the diffusion coefficient, the hydrodynamic radius an

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38

Esperança, Mateus Nordi. "Influência de aspectos geométricos na hidrodinâmica e transferência de oxigênio de biorreatores airlift de circulação interna." Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/4137.

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Made available in DSpace on 2016-06-02T19:56:54Z (GMT). No. of bitstreams: 1 5928.pdf: 1538103 bytes, checksum: aa35e421fd67417964fb69c2b0a31753 (MD5) Previous issue date: 2014-02-28<br>Agência Nacional de Petróleo<br>The performance of pneumatic bioreactors is highly related to their geometric characteristics, such as the bottom clearance, riser to downcomer cross sectional area ratio, liquid height and the gas-liquid separator design. Although new geometries have been proposed, it is still necessary deeper studies to obtain more adequate reactor projects for bioprocess applications. This s

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39

Martins, Mónia Andreia Rodrigues. "Studies for the development of new separation processes with terpenes and their environmental distribution." Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/22515.

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Doutoramento em Engenharia Química<br>Os terpenos pertencem ao que é provavelmente a maior e mais diversificada classe de produtos naturais com aplicações em vários setores devido aos seus sabores e fragrâncias. O seu elevado número, variedade de estruturas e complexidade química, fazem deles uma classe de compostos onde há ainda muitos estudos a serem realizados e questões a serem respondidas tanto sobre as suas propriedades termofísicas e equilíbrio de fases como sobre o seu impacto nos processos de extração e purificação e no ambiente. Ambos são relevantes para o desenvolvimento de b

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40

Corns, Warren Thomas. "New approaches to automated analytical instrumentation." Thesis, University of Plymouth, 1991. http://hdl.handle.net/10026.1/2194.

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41

Babinchak, William Michael. "Pathological Aggregation and Liquid-Liquid Phase Separation of TDP-43 in Neurodegenerative Disease." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case158575494511376.

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42

Manfoumbi, Christian. "Précipitation des gels de silice en solution aqueuse sursaturée à forte acidité : mécanismes et mésostructures, application à la filtrabilité des pulpes dans les procédés hydrométallurgiques." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30251/document.

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La formation de gels de silice dans les procédés hydrométallurgiques est très souvent problématique pour la performance des étapes de séparation solide-liquide, en raison du colmatage des filtres. Ces étapes interviennent en aval des étapes de lixiviation visant à mettre en solution les éléments d'intérêts, notamment dans des milieux à forte acidité. Egalement mis en solution au cours de ces attaques acides, le silicium précipite alors sous forme d'oxyde de silicium et forme des gels extrêmement préjudiciables à la filtration. Dans le cadre d'une collaboration avec ERAMET Research, centre de r

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43

Pillin, Béatrice. "Utilisation des champs magnétiques intenses pour la séparation d'inclusions : application aux particules solides immergées dans les métaux liquides." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0017.

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La separation de particules solides immergees dans un liquide en ecoulement au travers d'un champ magnetique statique intense a ete etudiee. Des forces magnetiques, liees aux susceptibilites magnetiques et au gradient spatial de champ magnetique, ou bien des forces electromagnetiques, liees aux conductivites electriques et au mouvement relatif de l'element conducteur par rapport au champ magnetique, peuvent etre mises en oeuvre. La separation est effective lorsque ces forces agissent sur la trajectoire des particules perpendiculairement a la direction de l'ecoulement. Ce sont les forces preced

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44

Yi, Ling. "Micellar liquid chromatographic separation of polycyclic aromatic hydrocarbons /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426117.

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45

Hida, H., M. Shikida, M. Okochi, H. Honda, and K. Sato. "Gas-Liquid Separated Resonator for Bio-Chemical Application." IEEE, 2009. http://hdl.handle.net/2237/13969.

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46

Ashrafizadeh, Seyed Nezameddin. "Solvent extraction and liquid membrane separation of rhodium." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37698.

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The aim of this work was to develop a viable solvent-extraction based system for the separation of rhodium (Rh) from aqueous chloride solutions. Ultimately, two different systems were developed. Kelex 100, a commercially available derivative of 8-hydroxyquinoline, was used as the extractant reagent in both of these systems. One of the systems involved the supported liquid membrane (SLM) extraction of Rh. In this system a very thin microporous "Gore-Tex" polymer sheet, impregnated with an organic solution of Kelex 100, served as the SLM. The other system involved the conversion of the chlorocom

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47

Wang, Ying. "Chiral ionic liquid in chiral separation and catalysis." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603555.

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In this thesis, the results of synthesis of chiral ionic liquids (ILs) and an investigation of their application in chiral separation and catalysis are described. The study of the chiral lLs application was performed using liquid-liquid extraction, crystallization and asymmetric catalysis with analysis of substrate content and enantioselectivity by High Performance Liquid Chromatography (HPLC) . A series of chiral lLS with chiral cations or chiral anions were synthesized through alkylation or anion exchange with optical pure starting materials as the •chiral pool", Properties of chiral ILS mad

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48

Allstaff, E. J. "Gas/liquid separation in an I-SEP cyclone." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/10724.

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An extensive experimental programme tested an l-SEP unit with air and water. This provided data on the separation efficiency and pressure drop across the l- SEP, as they varied with changing inlet conditions, geometry and outlet restrictions. The main conclusion from this work is that the resistance on the outlets directly affects the efficiency of the separator. Although it is possible to optimise the performance by changing 'the geometry, a small change in inlet conditions, common in oil and gas applications, causes the performance to change. _By using an identified relationship between the

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49

Allstaff, Ewan James. "Gas/liquid separation in an I-SEP cyclone." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/10724.

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An extensive experimental programme tested an l-SEP unit with air and water. This provided data on the separation efficiency and pressure drop across the l- SEP, as they varied with changing inlet conditions, geometry and outlet restrictions. The main conclusion from this work is that the resistance on the outlets directly affects the efficiency of the separator. Although it is possible to optimise the performance by changing 'the geometry, a small change in inlet conditions, common in oil and gas applications, causes the performance to change. _By using an identified relationship between the

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50

Jegede, Oluwatoyin Enitan. "Metastable liquid phase separation in Co-Cu alloys." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/19808/.

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Two Co – Cu alloys were studied by drop tube processing technique in a view of investigating the effects of rapid solidification on the phase transformations and microstructural evolution in the metastable alloys. The as – solidified samples had diameters ranging from 53 – 850+ μm and these were analysed using various characterization techniques such as optical (OM) and scanning electron (SEM) microscopy, x- ray diffraction (XRD) and differential thermal analysis (DTA). The Cu – 50 at. % Co alloy was observed to experience liquid phase separation at lower undercooling than the Cu – 68.5 at. %

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