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Received June 1, 2020
Accepted February 8, 2021
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Solid-liquid equilibrium and kinematic viscosity of binary mixture of fatty acid alkyl esters
Department of Chemical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal-131 039, India 1Department of Chemical Engineering and Applied Chemistry, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 34134, Korea 2Department of Fire and Disaster Protection Engineering, Woosong University, Daejeon 34606, Korea
sjpark@cnu.ac.kr
Korean Journal of Chemical Engineering, May 2021, 38(5), 1006-1013(8), 10.1007/s11814-021-0760-1
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Abstract
The separation and recovery of fatty acid alkyl esters (FAAE) is of great significance for various industries. Crystallization is a well-suited separation process for fatty acid mixtures which may be evolved by the understanding of solid-liquid equilibrium (SLE). The SLE and kinematic viscosity (ν) at (T=298.15-318.15 K) and (P=0.1mPa) for binary mixture of FAAE: methyl decanoate (1)+ethyl decanoate or methyl dodecanoate or methyl tetradecanoate (2) has been studied. The deviation in kinematic viscosity (Δν) data was derived using experimental ν data. The measured SLE exhibit general single eutectic point like other organic mixtures. The SLE data fit well with universal quasi-chemical (UNIQUAC) equation. The ν values were interrelated using different equations recommended by Heric-Brewer, Krishnan-Ladda, and Lulian et al. Theoretically estimated values using these empirical equations are in accordance with the experimental values with percentage standard deviation less than 0.35. The ν were also analyzed by means of the McAllister equation. The Δν data were also fitted with the Redlich-Kister polynomial equation. All three binary mixtures showed negative Δν values.
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