Characteristics of solute transfer in sodium dioleyl phosphate/sodium bis(2-ethylhexyl) sulfosuccinate microemulsion systems

Makoto Harada; Gen Nonaka; Katsuya Kanaoka; Akihisa Shioi; Motonari Adachi; Noriaki Mizutani; Masahiro Goto; Fumiyuki Nakashio

doi:10.1252/jcej.31.67

Characteristics of solute transfer in sodium dioleyl phosphate/sodium bis(2-ethylhexyl) sulfosuccinate microemulsion systems

Makoto Harada, Gen Nonaka, Katsuya Kanaoka, Akihisa Shioi, Motonari Adachi, Noriaki Mizutani, Masahiro Goto, Fumiyuki Nakashio

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The behavior of solute transfer in sodium dioleylphosphate (SDOLP)/n-heptane and SDOLP-AOT/n-heptane systems was elucidated by focussing on the extraction process in Winsor II and the solute-exchange process between microemulsion droplets. The extraction of tryptophan (Trp) between the organic and aqueous phases is rather fast for the simultaneous extraction of water and Trp in the SDOLP and SDOLP/AOT systems, whereas in the extraction of Trp without water transfer between the microemulsion droplet and the aqueous phase, the rate slows down significantly with the addition of SDOLP in the AOT system. The rate of the interdroplet exchange process is insensitive to the presence of SDOLP. The reason for the difference in these two processes is discussed with the help of a model of the exchange processes.

Original language	English
Pages (from-to)	67-75
Number of pages	9
Journal	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume	31
Issue number	1
DOIs	https://doi.org/10.1252/jcej.31.67
Publication status	Published - Feb 1998

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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title = "Characteristics of solute transfer in sodium dioleyl phosphate/sodium bis(2-ethylhexyl) sulfosuccinate microemulsion systems",

abstract = "The behavior of solute transfer in sodium dioleylphosphate (SDOLP)/n-heptane and SDOLP-AOT/n-heptane systems was elucidated by focussing on the extraction process in Winsor II and the solute-exchange process between microemulsion droplets. The extraction of tryptophan (Trp) between the organic and aqueous phases is rather fast for the simultaneous extraction of water and Trp in the SDOLP and SDOLP/AOT systems, whereas in the extraction of Trp without water transfer between the microemulsion droplet and the aqueous phase, the rate slows down significantly with the addition of SDOLP in the AOT system. The rate of the interdroplet exchange process is insensitive to the presence of SDOLP. The reason for the difference in these two processes is discussed with the help of a model of the exchange processes.",

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AU - Harada, Makoto

AU - Nonaka, Gen

AU - Kanaoka, Katsuya

AU - Shioi, Akihisa

AU - Adachi, Motonari

AU - Mizutani, Noriaki

AU - Goto, Masahiro

AU - Nakashio, Fumiyuki

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Characteristics of solute transfer in sodium dioleyl phosphate/sodium bis(2-ethylhexyl) sulfosuccinate microemulsion systems

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