Extraction of phenols: Ii. distribution data for binary and multicomponent mixtures of phenols, countercurrent extraction performance and model validation
作者:
V. Bízek,
J. Hor áč,
M. Koušová,
R. Komers,
J. Proch ázka,
A. Heyberger,
期刊:
The Canadian Journal of Chemical Engineering
(WILEY Available online 1993)
卷期:
Volume 71,
issue 2
页码: 256-263
ISSN:0008-4034
年代: 1993
DOI:10.1002/cjce.5450710212
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: countercurrent extraction;coal tar phenolics;mathematical simulation;equilibrium model
数据来源: WILEY
摘要:
AbstractThe distribution of binary mixtures of phenol witho‐, m‐orp‐cresol between aqueous solutions of NaOH and toluene or methyl‐isobutyl‐ketone (MIBK) was investigated. A mathematical model of the distribution was formulated and its parameters were evaluated for each phenol/cresol/solvent combination. The extraction of phenolics from a coal tar fraction with aqueous solutions of sodium phenates was carried out in a countercurrent cascade of four equilibrium stages. The back extraction of phenolics from the aqueous extract was carried out as a triple extraction with pure solvent. A mathematical simulation of the multicomponent, multistage experiments was realized with the DOOM algorithm using an extension of the equilibrium model, formulated for binary
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