Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Liquid liquid equilibrium"”.
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Experimental investigation of the complex liquid liquid equilibrium in the system pure/technical grade nonionic surfactant + water + oil
Aufgrund verschiedenster Anwendungsmöglichkeiten sind tensidhaltige Systeme immer mehr Gegenstand universitärer aber auch industrieller Forschung. Das Phasenverhalten von Systemen des Typs nichtionisches Tensid + Wasser + Alkan ist in der Literatur sehr gut beschrieben. Ein wichtiges Merkmal dieser …
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Multiscale Modeling of an Industrial Nylon-6 Leacher
… to as Polymer-COSMO-SAC, and apply it to solve liquid-liquid equilibrium equations. We present a unique methodology to apply COSMO-based models to polymer species, which shows reasonable results for nylon-6. Because of the computational intensity of our Polymer-COSMO-SAC liquid-liquid …
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Limiting Activity Coefficients for Aqueous Solutions
… energy expressions in representing both vapor-liquid and liquid-liquid equilibrium data from $\gamma\sp\infty$ measurements. A new technique for measuring limiting activity coefficients of low relative volatility solutes was developed based on measuring the change in the dew point temperature …
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Carboxylic acid and formaldehyde separation from aqueous solutions using ionic liquids
A series of hydrophobic ionic liquids (ILs) have been employed to extract acetic acid (AcOH) or formaldehyde (HCHO) from aqueous solutions at atmosphere pressure. The ILs, mainly trihexyl(tetradecyl)phosphonium ([P6,6,6,14]+) carboxylate based ILs, were tested as a function of the anion chain …
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Evaluation of physical properties of ionic liquids
Firstly, experimental data for ionic liquids properties; density, viscosity of pure ionic liquids, viscosity of binary ionic liquid mixtures, and solubility in molecular solvents were collected from the literature and thus four databases were compiled. Then mathematical gnostics was used to analyse …
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Liquid-liquid extraction of carotenoids from palm oil (Elaeis guineensis)
… had values within the standards. The liquid-liquid extraction at temperatures of 40, 45, and 50 °C. First, studies were conducted to evaluate the phase-forming capability and extraction performance of low-toxicity, low-cost, and environmentally friendly organic solvents. According to …
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Efeito hidrofóbico de macromoléculas sobre a partição de cianocomplexos em sistemas aquosos bifásicos
Dados de equilíbrio de fase de sistemas aquosos bifásicos (SAB s) formados pela mistura de copolímero tribloco, fosfato de potássio (pH=7) e água foram determinados neste trabalho em três temperaturas 10°C, 25°C e 40°C e com dois tipos de copolímeros L35 (1900g.mol-1) e F68 (8400g.mol-1). …
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Absorption based processes applying phase transition for energy efficient postcombustion CO2 capture
… scenarios of phase transitional processes (i.e., liquid-solid and liquid-liquid) to overcome the energy disadvantages associated with the MEA process. For the liquid-solid CO2 absorption process, an aqueous solution of potassium carbonate was applied and the CO2 absorption product, i.e., potassium …