Use of HLB Values for Prediction of Drop Coalescence Behavior in Liquid-Liquid Extraction Systems Containing Industrial Extractants
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概要
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A prediction of drop coalescence behavior based on HLB (Hydrophile-Lipophile Balance) of extractants has been examined for liquid-liquid systems using industrial extractants. With a video camera, time course of coalescence was observed for droplets formed at the top of adjacent nozzles in water. Drop coalescence behavior in a liquid-liquid system has been monitored for ten systems containing industrial extractants, e.g. PC88A (2-ethylhexyl-phosphonic acid mono-2-ethylhexyl ester), D2EHPA (di(2-ethylhexyl)phosphoric acid), TBP (tri-n-butyl phosphate), MIBK (methylisobutyl ketone), LIX84I (2-hydroxy-5-nonylacetophenone oxime), LIX860IC (5-dodecylsalicylaldoxime), TOA (trioctylamine), Et2CO (diethylketone), BA (benzoylacetone) and TOPO (tri-n-octylphosphine oxide). Investigated parameters are the concentration and HLB of the extractants. Similar experiments were conducted with surfactants, SPAN systems for which HLB values are known. Average times needed for coalescence for the extractants are compared with those for the surfactants. Average times needed for coalescence decrease with the increase in the extractants concentration and HLB values of the extractants. HLB of the extractants works as one controlling factor for drop coalescence.
- 社団法人 化学工学会の論文
著者
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二井 晋
Department of Chemical Engineering, Nagoya University
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TAJIMA Kei
Department of Chemistry and Chemical Engineering, Niigata University
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Takahashi Katsumi
Department Of Chemistry And Chemical Engineering Niigata University
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NII Susumu
Department of Chemical Engineering, Nagoya University
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TAKAHASHI Katsuroku
Department of Chemical Engineering, Nagoya University
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Nii S
Department Of Chemical Engineering Nagoya University
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Nii Susumu
Department Of Chemical Engineering Nagoya University
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KAWAIZUMI Fumio
Department of Science Education, Aichi University of Education
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BAN Takahiko
Department of Chemical Engineering, Nagoya University
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Ban Takahiko
Department Of Chemical Engineering Nagoya University
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Ban Takahiko
Department Of Chemical Engineering & Materials Science Doshisha University
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Takahashi Katsuroku
Department Of Chemical Engineering Faculty Of Engineering Nagoya University
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Kawaizumi Fumio
Department Of Science Education Aichi University Of Education
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Kawaizumi Fumio
Department of Chemical Engineering, Nagoya University
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Takahashi Katsuroku
Departmennt of Chemical Engineering, Nagoya University
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Kawaizumi Fumio
Department of Chemical Engineering, Faculty of Engineering, Nagoya University
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