Relevant bibliographies by topics / Extraction by emulsion

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Academic literature on the topic 'Extraction by emulsion'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Extraction by emulsion"

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Arun, Varun, Samsnavith Segu Jalaludeen, Suryarajan Jayakumar, and Samdavid Swaminathan. "Effect of contacting pattern and various surfactants on phenol extraction efficiency using emulsion liquid membrane." International Journal of Chemical Reactor Engineering 19, no. 7 (2021): 739–47. http://dx.doi.org/10.1515/ijcre-2020-0156.

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Abstract Emulsions prepared using different surfactants, including Span-80, BKC and CTAB, are studied for their stability and phenol remsoval efficiency. The effect of contacting pattern on ELM extraction efficiency is compared in Beaker – Stirrer apparatus and Bubble Flow Recirculation column. The emulsion prepared using Span-80 is relatively more stable than emulsions prepared using other surfactants. The emulsion stability during the extraction process is relatively higher in the Bubble Flow Recirculation column (15 min) than in the Beaker – Stirrer apparatus (10 min). At optimized conditions, the phenol removal efficiency of the emulsion prepared using Span-80 in Beaker – Stirrer apparatus is 96% and in Bubble Flow Recirculation column is 78%. Kinetic studies reveal that the extraction follows zeroth-order kinetics with an average phenol effective diffusivity of 0.0004 s at an initial phenol concentration ranging from 100–500 PPM.
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Längauer, David, Yu-Ying Lin, Wei-Hsin Chen, Chao-Wen Wang, Michal Šafář, and Vladimír Čablík. "Simultaneous Extraction and Emulsification of Food Waste Liquefaction Bio-Oil." Energies 11, no. 11 (2018): 3031. http://dx.doi.org/10.3390/en11113031.

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Biomass-derived bio-oil is a sustainable and renewable energy resource, and liquefaction is a potential conversion way to produce bio-oil. Emulsification is a physical upgrading technology, which blends immiscible liquids into a homogeneous emulsion through the addition of an emulsifier. Liquefaction bio-oil from food waste is characterized by its high pour point when compared to diesel fuel. In order to partially replace diesel fuel by liquefaction bio-oil, this study aimed to develop a method to simultaneously extract and emulsify the bio-oil using a commercial surfactant (Atlox 4914, CRODA, Snaith, UK). The solubility and stability of the emulsions at various operating conditions such as the bio-oil-to-emulsifier ratio (B/E ratio), storage temperature and duration, and co-surfactant (methanol) addition were analyzed. The results demonstrate that higher amounts of bio-oil (7 g) and emulsifier (7 g) at a B/E ratio = 1 in an emulsion have a higher solubility (66.48 wt %). When the B/E ratio was decreased from 1 to 0.556, the bio-oil solubility was enhanced by 45.79%, even though the storage duration was up to 7 days. Compared to the emulsion stored at room temperature (25 °C), its storage at 100 °C presented a higher solubility, especially at higher B/E ratios. Moreover, when methanol was added as a co-surfactant during emulsification at higher B/E ratios (0.714 to 1), it rendered better solubility (58.83–70.96 wt %). Overall, the emulsified oil showed greater stability after the extraction-emulsification process.
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Nunez, Cristian, Ramin Dabirian, Ilias Gavrielatos, Ram Mohan, and Ovadia Shoham. "Methodology for Breaking Up Nanoparticle-Stabilized Oil/Water Emulsion." SPE Journal 25, no. 03 (2020): 1057–69. http://dx.doi.org/10.2118/199892-pa.

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Summary A state-of-the-art portable dispersion characterization rig (P-DCR) is applied to study emulsions with Exxsol™ mineral oil (ExxonMobil Chemical Company, Houston, Texas, USA), commercial distilled water, and hydrophobic silica nanoparticles (NPs) as emulsifiers. The emulsion is prepared in the P-DCR batch-separator vessel, whereby the separation kinetics are observed and recorded. In this study, emulsion breakup by the integration of oil extraction/water addition and a stirring process is investigated, which is formed with 25% water cut (WC) and 0.01% w/w hydrophobic NPs (dispersed in the oil phase). The experimental data are divided into three data sets: oil extraction only, oil-extraction/pure-water addition, and oil-extraction/water with hydrophilic NP addition. For oil extraction only (Data Set 1), the WC of the fluid mixture increases, and for a sufficient volume extraction, phase inversion occurs that results in a complete separation of the oil and water. The minimum final required NP concentration for a fast separation, defined as the minimum concentration of NP required to begin the phase separation of the emulsion, is approximately 0.0045%. The acquired data for oil-extraction/pure-water-addition (Data Set 2) result in a faster breakup of the emulsion, as compared with oil extraction only. The oil-extraction/pure-water-addition process increases the system WC faster, reaching the phase-inversion point sooner. For the oil-extraction/pure-water-addition, the final lowest WC and NP concentrations are approximately 37% and 0.006% w/w, respectively, for fast separation. Thus, it can be concluded that the NP concentration and the WC are related. Repetitive oil-extraction/pure-water-addition cycles enable determination of the combined effects of the WC and NP on the separation process. A relatively stable emulsion is reached after approximately 2 minutes from the beginning of each cycle, which enables determining whether a quick separation occurs at the current cycle. Data Set 3 (oil-extraction/water with hydrophilic NP addition) results reveal that dispersing hydrophilic NPs in water does not promote emulsion breakup. On the contrary, the NPs produce a slightly more stable emulsion. The separation process, however, does not differ significantly even for high hydrophilic NP concentrations, emphasizing the dominant role of the hydrophobic particles (dispersed in the base-case emulsion).
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Kluge, Johannes, Lisa Joss, Sebastian Viereck, and Marco Mazzotti. "Emulsion crystallization of phenanthrene by supercritical fluid extraction of emulsions." Chemical Engineering Science 77 (July 2012): 249–58. http://dx.doi.org/10.1016/j.ces.2011.12.008.

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Kerimova, Z. K., and K. Y. Alieva. "Production of emulsion crème from the Izabella grape seeds and the study of its pharmacocosmetological properties." Reviews on Clinical Pharmacology and Drug Therapy 10, no. 3 (2012): 50–52. http://dx.doi.org/10.17816/rcf10350-52.

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Using the method of polyfraction extraction, the oil, spiritus and water extractions from the Izabella grape seeds were received by means of hexane taking out, the emulsion crème of the water/oil type on that base was developed. The treatment effect of emulsion crème on the thermic and chemical burnings was determined in the experiment. During the primary cosmetology trial the emulsion crème was effective for removal and prevention of wrincklies.
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Ghetiu, Iuliana, Ioana Gabriela Stan, Casen Panaitescu, Cosmin Jinescu, and Alina Monica Mares. "Surfactants Efficiency in Oil Reserves Exploatation." Revista de Chimie 68, no. 2 (2017): 273–78. http://dx.doi.org/10.37358/rc.17.2.5435.

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The use of surfactants in the process of water separation from crude oil emulsions formed at extraction is an effective solution in the treatment of crude oil. But perfecting this technology to a higher degree of efficiency, in order to destabilize the emulsion formed, requires the determination of the parameters involved in the design and the correlation of the obtained results. This research also aims at finding optimal solutions that increase the degree of water separation from emulsions using surface-effective solutions to destabilize the emulsion layer. This research was basedon data from two wells that extract oil from Barc�u reservoir. To achieve this objective, the composition of crude oil was analyzed, the emulsion characteristics were established and the elected demulsifiers were tested. The study highlights the efficiency of destabilization up to 97.9 mass %.
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Fouad, Elsayed Ali. "Optimizing Emulsion Liquid Membrane Process for Extraction of Nickel from Wastewater Using Taguchi Method." International Journal of Research in Science 3, no. 1 (2017): 1. http://dx.doi.org/10.24178/ijrs.2017.3.1.01.

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Abstract--The main objectives of this research were focused on extracting nickel ions from waste water using emulsion liquid membrane as well as determining the optimal conditions for the extraction process. Taguchi experimental design method was applied to determine the optimum extraction conditions. The controllable factors of the emulsion liquid membrane process were carrier; surfactant; and internal phase concentration, treating ratio, stirring time, and feed phase acidity were optimized. The contribution of each controllable factor was also explored. The results indicated the greatest effect of the carrier concentration in comparison to other parameters. The five other parameters slightly affected the extraction percentage of nickel. The optimum conditions for the extraction was found to be carrier concentration (M) of 0.25, surfactant concentration (v %) of 10, internal phase concentration (M) of 0.1, external / emulsion ratio (v/v) of 5, stirring time (min.) of 1, and feed phase pH of 0.5.
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Akkar, Suheila Abd Alreda, and Sawsan Abd Muslim Mohammed. "Design of Intelligent Network to Predicate Phenol Removal from Waste Water by Emulsion Liquid Membrane." Materials Science Forum 1021 (February 2021): 115–28. http://dx.doi.org/10.4028/www.scientific.net/msf.1021.115.

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This research introduced Intelligent Network's proposed design for predicting efficiency in the removal of phenol from wastewater by liquid membrane emulsion. In the inner phase of W / O emulsions, phenol extraction from an aqueous solution was investigated using emulsion liquid membrane prepared with kerosene as a membrane phase, Span 80 as a surfactant, and NaOH as a stripping agent. Experiments were conducted to investigate the effect of three emulsion composition variables, namely: surfactant concentration, membrane phase to-internal (VM / VI) volume ratio, and removal phase concentration in the internal phase, and two process parameters, feed phase agitation speed at organic acid extraction rates, and emulsion-to-feed volume ratio (VE / VF). More than 98% of phenol can be extracted in less than 5 minutes. This article describes compares the performance of different learning algorithms such as GD, RB, GDM, GDX, CG, and LM to predict the efficiency of phenol removal from wastewater through the liquid emulsion membrane. The proposed neural network consisted of (7, 11, 1) neurons in the input , hidden and output layers respectively feed forward ANN with various types of back propagation training algorithms were developed to model the emulsion liquid membrane removal of phenols. The values predicted for the neural network model are found in close agreement with the results of the batch experiment using MATLAB program with a correlation coefficient ( R2) of 0.999 and Mean Squared Error (MSE) of 0.004.
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Santoso, Imam, and Buchari Buchari. "EFFECT OF MATRICES ON PERCENT EXTRACTION OF SILVER (II) FROM BLACK/WHITE PRINTING PHOTOGRAPHIC WASTE USING EMULSION LIQUID MEMBRANE TECHNIQUE." Indonesian Journal of Chemistry 1, no. 3 (2010): 149–56. http://dx.doi.org/10.22146/ijc.21942.

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Extraction of silver (I) has been studied from black/white printing photographic waste by emulsion liquid membrane technique. Composition emulsion at the membrane phase was cerosene as solvent, sorbitan monooleat (span 80) as surfactant, dimethyldioctadesyl-ammonium bromide as carrier and as internal phase was HNO3. Optimum condition was obtained: ratio of internal phase volume and membrane phase volume was 1:1 : concentration of surfactant was 2% (v/v) : time of making emulsion was 20 second : rate of stiring emulsion was 1100 rpm : rest time emulsion was 3 second : rate of emulsion volume and external phase volume was 1:5 : emulsion contact rate 500 rpm : emulsion contact time was 40 second : concentration of silver thiosulfate as external phase was 100 ppm : pH of external phase was 3 and pH of internal phase was 1. Optimum condition was applied in silver(I) extraction from black/white printing photographic waste. It was obtained 77.33% average which 56.06% silver (I) average of internal phase and 22.66% in the external phase. Effect of matrices ion decreased silver(I) percent extraction from 96,37% average to 77.33% average. Keyword: photographics waste, silver extraction
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Fouad, E., F. Ahmad, and K. Abdelrahman. "Optimization of Emulsion Liquid Membrane for Lead Separation from Aqueous Solutions." Engineering, Technology & Applied Science Research 7, no. 5 (2017): 2068–72. http://dx.doi.org/10.48084/etasr.1390.

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This study focuses on evaluating the process parameters and their effects on extraction of lead as well as emulsion breaking. The Signal / Noise ratios have been used to study the performance characteristics. Six parameters affecting extraction by emulsion liquid membrane, namely, TOPO, Span80, and internal phase concentration, feed/emulsion ratio, agitation time and feed pH have been optimized with considerations to lead extraction and emulsion breaking. The standardized effects of the independent variables and their interactions were tested by the analysis of variance (ANOVA) with 95% confidence limits (α= 0.05) and Pareto chart. The use of the optimal values of these parameters has been proved useful in maximizing the extraction efficiency and minimizing the emulsion breakage. TOPO concentration of 0.1498 M, Span 80 concentration of 3.007 v%, Internal phase concentration of 0.183 M, Feed/emulsion volume ratio of 1.407, agitation time of 30 minutes, and feed pH of 5 are determined as the optimum parameters.
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Dissertations / Theses on the topic "Extraction by emulsion"

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Duhayon, Christophe. "Copper solvent extraction by ultrasound-assisted emulsification." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210155.

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The goal of this research is to improve an extractive metallurgy process based<p>on solvent extraction. This process should fit the exploitation of small local<p>copper-rich deposits. In these conditions, the plant has to be as compact as<p>possible in order to be easily transported from one location to a subsequent<p>one. Improved extraction kinetics could ensure a high throughput of the<p>plant despite its compactness. In addition, the extraction reagent should<p>not be damaging for the environnement. On this basis, we propose to use<p>ultrasound-assisted solvent extraction. The main idea is to increase the<p>extraction kinetics by forming an emulsion in place of a dispersion thanks to<p>the intense cavitation produced by ultrasound. The benefit of this method<p>is to improve the copper extraction kinetics by increasing the interfacial<p>surface area and decreasing the width of the diffusion layer. We studied the<p>implementation of an highly branched decanoic acid (known as Versatic-<p>10®acid) as a copper extraction reagent dispersed in kerosene.<p>Emulsification is monitored through the Sauter diameter of the organic<p>phase droplets in aqueous phase. This diameter is measured during pulsed<p>and continuous ultrasound irradiation via a static light scattering technique.<p>The phenomenon of emulsification of our system by ultrasound is effective,<p>and the emulsification process carried out in the pulsed ultrasound mode is<p>at least as efficient as the emulsification obtained under continuous mode.<p>No improvement of emulsification is observed beyond a threshold time of<p>the ultrasound impulse. This may be attributed to a competition between<p>disruption and coalescence. The use of mechanical stirring combined with<p>pulsed ultrasound allows to control the droplet size distribution.<p>In presence of ultrasound, the extraction kinetics of Versatic-10 acid is<p>multiplied by a factor ten, and therefore reached a value similar to the kinetics<p>observed without ultrasound with an industrial extractant such as<p>LIX-860I®(Cognis). Extraction kinetics measurements are carried out by<p>monitoring the copper ion concentration in the aqueous phase with an electrochemical<p>cell.<p>We conclude that ultrasound-assisted emulsification can be implemented<p>under certain conditions. Emulsification is a first step, and the following<p>destabilization step has to be studied. The device using ultrasound-assisted<p>emulsification should be followed by an efficient settling-coalescing device. A<p>possible solution would be to promote emulsion destabilization by increasing<p>the ionic strength with an addition of MgSO4, a salt that is not extracted<p>by the extraction reagent in the considered range of pH.<br>Doctorat en Sciences de l'ingénieur<br>info:eu-repo/semantics/nonPublished
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Chaudhuri, Julian Brajendra. "Kinetic studies on the emulsion liquid membrane extraction of lactic acid." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253779.

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Pickering, Paul. "Selective extraction of (D)-phenylalanine from aqueous racemic (D/L)-phenylalanine by chiral emulsion liquid membrane extraction." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481450.

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Guillemin, Sandrine. "Extraction aqueuse d'huile de colza assistée par hydrolyse enzymatique : optimisation de la réaction, caractérisation de l'émulsion et étude de procédés de déstabilisation." Thesis, Vandoeuvre-les-Nancy, INPL, 2006. http://www.theses.fr/2006INPL073N/document.

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En réponse aux attentes actuelles des consommateurs pour des produits de haute qualité nutritionnelle et environnementale, et face aux impératifs industriels conduisant à minimiser les risques et l’impact environnemental lors de l’extraction à l'hexane de l’huile de la graine de colza, l’étude de l’extraction aqueuse avec assistance enzymatique de cette huile a été reprise avec 2 objectifs principaux : déterminer les enzymes et mélanges d'enzymes adaptés à la meilleure déstructuration du tissu adipeux végétal, et d'autre part étudier les propriétés et la déstabilisation de l'émulsion formée. De l'optimisation de ces 2 séquences du process dépendent les rendements finaux en huile de l'extraction et les propriétés du tourteau, qui constituent les clés économiques de l'émergence de cette nouvelle technologie. Pour cela, après caractérisation physicochimique des constituants de la graine, protéases et polysaccharides hydrolases ont été testées seules ou en combinaison afin d’optimiser le rendement en huile libre et en huile contenue dans l’émulsion engendrée lors de l’extraction et obtenue par centrifugation. Après caractérisation de l’émulsion (rhéologie, diffusion statique de la lumière, pH, conductivité), des tests de déstabilisation physicochimiques ou thermo-mécaniques ont été mis en œuvre afin de séparer les constituants de l’émulsion formée, et obtenir ainsi la libération de l'huile. Les tests réalisés ont permis de retenir trois procédés de déstabilisation: l’addition de talcs, l’inversion de phase par addition d’huile exogène en présence de NaCl dans la phase aqueuse, et les cycles de congélation/décongélation. Afin d’apporter les premiers éléments de l’optimisation de ce dernier procédé, une étude par planification expérimentale a été mise en œuvre<br>Consumer's concerns about the quality and environmental impact of the products as well as the industrial requirements regarding the risk assessment and the environmental and health repercussions of the solvent extraction of rapeseed oil using hexane led us to work on the optimisation of the aqueous enzymatic extraction of this oil. The study has been carried out to determine the best combination of enzymes able to achieve the disruption of the vegetal adipose tissue, and to characterize the emulsion obtained after centrifugation. The final objective was to maximize the yields of the oil extraction and to obtain adequate nutritional properties of the cake. After the physicochemical characterization of the rapeseed raw material, several proteases and polysaccharide hydrolases have been tested individually and in combination in order to optimize the removal of free oil and the emulsion oil yield occurring during the aqueous extraction process. The physicochemical properties of the emulsion have been determined: rheological properties, pH, conductivity, spectroscopy by Short Angles Light Scattering). Thereafter some physicochemical and thermo-mechanical treatments have been carried out to destabilize the oil-in-water emulsion obtained after the centrifugation, which contained a large part of the total oil of the reaction mixture. Three destabilization processes appeared particularly interesting to increase the free oil removal from the emulsion: talc addition before centrifugation, phase inversion by addition of exogenous oil in presence of NaCl in the aqueous phase, and freezing/thawing cycles. Finally, an optimisation trial of the freezing/thawing process using a Doehlert experimental design has been done as an example
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Morales, Chabrand Ramón. "Destabilization of the emulsion formed during aqueous extraction of oil from full fat soybean flour." [Ames, Iowa : Iowa State University], 2007.

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Yates, Matthew Zachariah. "Latex formation and steric stabilization in supercritical carbon dioxide /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Gilbert, Christopher Donald. "Non-Newtonian conversion of emulsion liquid membranes in the extraction of lead and zinc from simulated wastewater." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/10911.

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Yim, Ka Ho. "Comparaison de procédés d'extraction appliqués au domaine des biotechnologies blanches." Phd thesis, Ecole Centrale Paris, 2013. http://tel.archives-ouvertes.fr/tel-00910070.

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Ce doctorat a pour de comparer deux procédés d'extraction de biomolécules, comme l'acide gallique. Le phosphate de tributyle (TBP), dilué dans le dodécane, est choisi comme extractant et Na2HPO4 comme désextractant pour leur efficacité. Avec ces réactifs, nous avons déterminé le mécanisme des deux systèmes extractifs. L'extraction liquide-liquide est limitée par l'équilibre thermodynamique : elle est efficace pour des concentrations élevées de TBP. Quant à l'extraction par émulsion, elle ne l'est pas ; si l'émulsion est stable, l'extraction peut être rapide et totale avec des concentrations de TBP plus faibles, ce qui rend ce procédé plus vert que le précédent. La dernière partie de l'étude porte sur le remplacement du dodécane par des agrodiluants afin d'obtenir des procédés encore plus verts. L'utilisation d'esters éthyliques d'acide gras permet d'augmenter l'extraction en présence de TBP et même d'éviter son emploi en extraction par émulsion.
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Mu, Junju. "Computer simulation study of third phase formation in a nuclear extraction process." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/computer-simulation-study-of-third-phase-formation-in-a-nuclear-extraction-process(a1ad2143-4fc4-41cf-84c5-e447eeb0b3a3).html.

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Third phase formation is an undesirable phenomenon during the PUREX process, which is a continuous liquid-liquid extraction approach for the reprocessing of uranium and plutonium from spent nuclear fuel. When third phase formation occurs, the organic extraction solution splits into two layers. The light upper layer, which is commonly named the light organic phase, contains a lower concentration of metal ions, tri-n-butyl phosphate (TBP) and nitric acids but is rich in the organic diluent. The heavy lower layer, which is commonly named the third phase, contains high concentrations of metal ions, TBP and nitric acids. As the third phase contains high concentrations of the uranium and plutonium complexes it can thus cause processing and safety concerns. Therefore, a comprehensive understanding of the mechanism of third phase formation is needed so as to improve the PUREX flowsheet. To investigate third phase formation through molecular simulations, one should first obtain reliable molecular models. A refined model for TBP, which uses a new set of partial charges generated from our density functional theory calculations, was proposed in this study. To compare its performance with other available TBP models, molecular dynamics simulations were conducted to calculate the thermodynamic properties, transport properties and the microscopic structures of liquid TBP, TBP/water mixtures and TBP/n-alkane mixtures. To our knowledge, it is only TBP model that has been validated to show a good prediction of the microscopic structure of systems that consist of both hydrophobic and hydrophilic species. This thesis also presents evidence that the light-organic/third phase transition in the TBP/n-dodecane/HNO3/H2O systems, which is relevant to the PUREX process, is an unusual transition between two isotropic, bi-continuous micro-emulsion phases. The light-organic /third phase coexistence was first observed using Gibbs Ensemble Monte Carlo (GEMC) simulations and then validated through Gibbs free energy calculations. Snapshots from the simulations as well as the cluster analysis of the light organic and third phases reveal structures akin to bi-continuous micro-emulsion phases, where the polar species reside within a mesh whose surface consists of amphiphilic TBP molecules. The non-polar n-dodecane molecules are outside this mesh. The large-scale structural differences between the two phases lie solely in the dimensions of the mesh. To our knowledge, the observation of the light-organic/third phase coexistence through simulation approaches and a phase transition of this nature have not previously been reported. Finally, this thesis presents evidence that the microscopic structure of the light organic phase of the Zr(IV)/TBP/n-octane/HNO3/H2O system, which is also related to the PUREX process, is different from that of the common hypothesis, where such system is consisted of large ellipsoidal reverse micelles. Snapshots from simulations, hydrogen bonding analysis and cluster analysis showed that the Zr4+, nitrate, TBP and H2O form extended aggregated networks. Thus, as above, we observe a bi-continuous structure but this time with embedded local clusters centred around the Zr4+ ions. The local clusters were found to consist primarily of Zr(NO3)4·3TBP complexes. This finding provides a new view of the structure of the Zr(IV)/TBP/n-octane/HNO3/H2O system.
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Park, Yonggyun. "Development and Optimization of Novel Emulsion Liquid Membranes Stabilized by Non-Newtonian Conversion in Taylor-Couette Flow for Extraction of Selected Organic and Metallic Contaminants." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11487.

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Extraction processes employing emulsion liquid membranes (ELMs), water-in-oil emulsions dispersed in aqueous phase, have been shown to be highly efficient in removing a variety of organic and inorganic contaminants from industrial wastewaters. As a result, they have been considered as alternative technologies to other more common separation processes such as pressure-driven membrane processes. Unfortunately, a widespread use of the ELM process has been limited due to the instability of emulsion globules against fluid shear. Breakup of emulsions and subsequent release of the internal receptor phase to the external donor phase would nullify the extraction process. Numerous studies have been, therefore, made in the past to enhance the stability of ELMs. Examples include adding more surfactants into the membrane phase and increasing the membrane viscosity. However, increased stability has been unfortunately accompanied by loss in extraction efficiency and rate in most reported attempts. The primary objective of this research is to apply the ELMs in a unique contacting device, a Taylor-Couette column, which provides a relatively low and uniform fluid shear that helps maintaining the stability of emulsion without compromising the extraction efficiency of a target compound. The ELM used in this study is made of membrane phase converted into non-Newtonian fluid by polymer addition, which provides additional uncommon remedy for the problem. This innovative ELM process was optimized to treat various types of simulated industrial wastewaters containing selected phenolic compounds and heavy metals. Experiments performed in this study suggested that the newly developed ELM process achieved exceptionally high overall removal efficiencies for the removal of these target compounds in relatively short contact time. Mechanistic predictive models were further developed and verified with the experimental data. Combined with the experimental data and novel mathematical predictive models, this study is expected to have a high impact on immediate practices of emulsion liquid membrane technologies in relevant industries.
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Books on the topic "Extraction by emulsion"

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Nilsen, D. N. Copper extraction from aqueous solutions with liquid emulsion membranes: A preliminary laboratory study. U.S. Dept. of the Interior, Bureau of Mines, 1991.

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Razdelenie ėmulʹsiĭ v smesitelʹno-otstoĭnykh ėkstraktorakh. Kolʹskiĭ filial AN SSSR, 1988.

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Book chapters on the topic "Extraction by emulsion"

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Ho Yim, Ka, Moncef Stambouli, and Dominique Pareau. "Emulsion Extraction of Bio-products: Influence of Bio-diluents on Extraction of Gallic Acid." In Alternative Solvents for Natural Products Extraction. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43628-8_10.

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Chaudhuri, J. B., and D. L. Pyle. "A Model for Emulsion Liquid Membrane Extraction of Organic Acids." In Separations for Biotechnology 2. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0783-6_13.

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Reed, D. L., A. L. Bunge, and R. D. Noble. "Influence of Reaction Reversibility on Continuous-Flow Extraction by Emulsion Liquid Membranes." In Liquid Membranes. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0347.ch005.

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Thakur, Avinash, Parmjit Singh Panesar, and Manohar Singh Saini. "Statistical Optimization of Lactic Acid Extraction from Fermentation Broth Using Emulsion Liquid Membrane." In Biotechnology and Biochemical Engineering. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1920-3_3.

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Sulaiman, Raja Norimie Raja, Norasikin Othman, Nor Aishah Saidina Amin, Noor Haziqah Kamaludin, and Nur Na Illah Sallih Udin. "Extraction of Ionized Nanosilver by Emulsion Liquid Membrane Using Cyanex 302 as a Mobile Carrier." In Proceedings of the International Conference on Science, Technology and Social Sciences (ICSTSS) 2012. Springer Singapore, 2014. http://dx.doi.org/10.1007/978-981-287-077-3_54.

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Santos, Diego T., Ádina L. Santana, M. Angela A. Meireles, et al. "Supercritical Fluid Extraction of Emulsion Obtained by Ultrasound Emulsification Assisted by Nitrogen Hydrostatic Pressure Using Novel Biosurfactant." In Supercritical Antisolvent Precipitation Process. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26998-2_5.

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Yurtov, E. V., and M. Yu Koroleva. "Emulsions for Liquid Membrane Extraction: Properties and Peculiarities." In ACS Symposium Series. American Chemical Society, 1996. http://dx.doi.org/10.1021/bk-1996-0642.ch006.

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Santos, Diego T., Ádina L. Santana, M. Angela A. Meireles, et al. "Recent Developments in Particle Formation with Supercritical Fluid Extraction of Emulsions Process for Encapsulation." In Supercritical Antisolvent Precipitation Process. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26998-2_4.

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Weixuan, LI, DAI Xing, and SHI Yajun. "Study on the Swelling of Emulsion Liquid Membrane." In Solvent Extraction 1990, Part B. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-88677-4.50093-3.

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MORI, E., M. I. ORTIZ, and A. IRABIEN. "Membrane Behaviour in Chromate Recovery Using Emulsion Liquid Membranes." In Solvent Extraction 1990, Part B. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-88677-4.50081-7.

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Conference papers on the topic "Extraction by emulsion"

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Ali Demirci, Julie C. Cotton, Anthony L. Pometto III, Kristi R. Harkins, and Paul N. Hinz. "Optimization of Emulsion Liquid Extraction System for Lactic Acid Recovery." In 2002 Chicago, IL July 28-31, 2002. American Society of Agricultural and Biological Engineers, 2002. http://dx.doi.org/10.13031/2013.9228.

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Luo, Chuannan, Zhongpeng Xu, Xueying Wang, and Zhen Lv. "Extraction of p-phenylenediamine From Aqueous Solutions Using Emulsion Liquid Membranes." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5162842.

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Yuliusman, Silvia, Annisaa Nurqomariah, and Radifan Fajaryanto. "Extraction of Co and Ni metals using emulsion liquid membrane and liquid-liquid extraction with Cyanex 272 as extractant." In THE 11TH REGIONAL CONFERENCE ON CHEMICAL ENGINEERING (RCChE 2018). Author(s), 2019. http://dx.doi.org/10.1063/1.5095049.

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Lam, Raymond H. W., Jiyu Li, Dinglong Hu, Chee Kent Lim, and Patrick K. H. Lee. "Single-Bacteria Isolation and Selective Extraction Based on Microfluidic Emulsion and Sequential Micro-Sieves." In 2019 IEEE 14th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). IEEE, 2019. http://dx.doi.org/10.1109/nems.2019.8915660.

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Kovaleva, Liana, Ayrat Musin, Rasul Zinnatullin, and Iskander S. Akhatov. "Destruction of Water-in-Oil Emulsions in Electromagnetic Fields." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62935.

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The problem of water-in-oil emulsion destruction is related to many technological processes in the oil-and-gas industry, especially in extracting and processing of oil, preparation and transportation of oil, and liquidation/recycling of oil-sludge barns. High stability of water-in-oil emulsions is principally conditioned by the presence in oils of heavy high-molecular polar components that envelope water droplets and prevent coalescence of these droplets. Using conventional techniques to destroy the emulsions yields no positive results. Employing electromagnetic field energy is one of the ways to address this problem. The paper presents the results of an experimental study of the water-in-oil emulsion destruction in radio-frequency and microwave electromagnetic fields. A mathematical model is also proposed to describe the process of electromagnetic impact on water-in-oil emulsions.
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Ammar, Saad H., Hadi Ghali Attia, and Abdul-Kareem D. Affat. "Extraction of metal ions mixture cadmium, iron, zinc and copper from aqueous solutions using emulsion liquid membrane technique." In 2012 First National Conference for Engineering Sciences (FNCES). IEEE, 2012. http://dx.doi.org/10.1109/nces.2012.6740483.

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Al-Taq, Ali, Abdullah Al-Moajil, Sajjad Aldarweesh, and Hussain Al-Abbas. "Downhole Sludge: Formation, Characterization and Removal." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21321-ms.

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Abstract Sludge formed downhole in the production interval can be classified into crude oil-based or mud-based sludge. Sludge obstruction may result in partial or total loss of well productivity. Oil-based mud is commonly used in drilling of the pay zones in sandstone formations as a less/non damaging fluid. Oil-based mud typically contain emulsifier, viscosifer and other additives including polymer blend and calcium carbonate to serve different functions. Presence of emulsifier may increase emulsion tendency upon interaction with downhole environment. The resulting emulsion might be tight to an extent that a thick sludge is formed which can impair well productivity. Similarly, oil-based sludge may form from oil/water interaction in presence of emulsifiers, asphaltene, wax, solids, shear, etc. Identification of the sludge material will help in development of an effective chemical treatment to remove formation damage and restore well productivity. In this study, an extensive laboratory work was conducted to explore potential interactions of different downhole environment contaminants/factors on formation of oil-based and mud-based sludge. Typical mud-based and crude oil-based sludge samples were characterized using different analytical techniques including solvent extraction, XRD, TGA, ICP and viscosity. The results showed that the mud-based sludge sample contained calcium carbonate, dolomite quartz as the main components in the inorganic phase while the organic phase include polymers and oil. The oil-based sludge sample contained mainly water (82 wt%) with some solid particulates and asphaltene in the organic phase. Analysis of supernatants generated from solubility tests conducted for the mud-based and oil-based sludge samples revealed in addition to the high amount of calcium presence of iron in considerable amount (nearly 1,000 mg/L). Interaction of ferric chloride, quartz with an invert-emulsion mud was investigated. A significant increase in viscosity was observed upon incorporation of these contaminates with the mud sample. Iron ions in the aqueous phase tended to stabilized emulsion. This paper presents in detail mechanisms of mud-based and crude oil-based sludge formation upon interaction with environment. It also examined several chemical formulations for removal of mud-based and oil-based sludge samples.
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"Extraction and Formulation of Oil in Water (O/W) Emulsion with Coco Plum (Chrysobalanus icaco) Seed Oil: Physicochemical and Microbiological Evaluations." In Nov. 16-17, 2020 Johannesburg (SA). Eminent Association of Pioneers, 2020. http://dx.doi.org/10.17758/eares10.eap1120136.

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Lu, Li, Jeffrey W. Schertzer, and Paul R. Chiarot. "Synthetic Asymmetric Vesicles Built Using Microfluidic Technology at High-Throughput." In ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/icnmm2015-48556.

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We report on a novel microfluidic strategy for building monodisperse asymmetric vesicles with customized composition, size, and interfacial properties at high-throughput. The microfluidic device encompasses a triangular post region and two flow-focusing regions. The major steps involved in the vesicle building process include: (1) forming highly uniform water emulsion templates in the inner-leaflet lipid solution, (2) replacing the inner-leaflet lipid solution with the outer-leaflet lipid solution, (3) creating water-in-oil-in-water double emulsions, and (4) extracting the excess outer-leaflet lipid solution from the double emulsions. Bilayer membrane asymmetry and unilamellarity are confirmed using a fluorescence quenching assay and quantitative measurements of fluorescent intensities. This method addresses many of the deficiencies found in existing technologies, and yields asymmetries as high as 95%. The asymmetric vesicles built using this strategy hold the potential to serve as model systems to investigate fundamental problems in membrane biology.
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Hasan, Hanoon, Ali Nooruldeen Abdulkareem, and Maryam Jebur Jaafer. "Experimental study of produced water extraction from emulsions." In INTERNATIONAL CONFERENCE ON EMERGING APPLICATIONS IN MATERIAL SCIENCE AND TECHNOLOGY: ICEAMST 2020. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0009296.

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Reports on the topic "Extraction by emulsion"

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Birdwell, JR J. F. Investigation of Emulsion Formation in Solvent Washing in the Caustic-Side Solvent Extraction (CSSX) Process. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/814649.

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