Liquid-liquid two-phase mass transfer characteristics in a rotating helical microchannel

Yan Cao; Jun Li; Yang Jin; Jianhong Luo; Yubin Wang

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Liquid-liquid two-phase mass transfer characteristics in a rotating helical microchannel

Separation Science and Engineering | Updated：2026-01-06

- Liquid-liquid two-phase mass transfer characteristics in a rotating helical microchannel
- Chinese Journal of Chemical Engineering Vol. 27, Issue 12, Pages: 2937-2947(2019)
- Affiliations：
  
  Department of Chemical Engineering, Sichuan University,Chengdu,China,610065
- Author bio：
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- DOI：
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- Published：2019
- Accepted：
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Yan Cao, Jun Li, Yang Jin, Jianhong Luo, Yubin Wang. Liquid-liquid two-phase mass transfer characteristics in a rotating helical microchannel[J]. Chinese Journal of Chemical Engineering, 2019, 27(12): 2937-2947.
DOI：

Yan Cao, Jun Li, Yang Jin, Jianhong Luo, Yubin Wang. Liquid-liquid two-phase mass transfer characteristics in a rotating helical microchannel[J]. Chinese Journal of Chemical Engineering, 2019, 27(12): 2937-2947. DOI：

摘要

Abstract

In this work

the mass transfer characteristics of two immiscible fluids were investigated in a rotating helical microchannel with hydraulic diameter of 932 μm. Aqueous phosphoric acid solution and 80% tri-

-butyl phosphate (TBP) in kerosene were selected for the investigation of mass transfer performance in quartz glass/high density polyethylene (HDPE) microchannel. High dispersion between the two immiscible fluids can be obtained in the microchannel due to the intensifying action of centrifugal force

and the majority of the droplets with average diameter of 20-100 μm were produced in the microchannel. The flow rate and rotation speed were found to have great effects on the extraction efficiency and average residence time. The empirical correlation of average residence time based on experimental data was developed by theoretical analysis and data fitting method

and a mathematical model of the mass transfer coefficient in dispersed phase was proposed.

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