Kinetic study on extractive resolution of tropic acid by hydroxyethyl-β-cyclodextrin

Kinetic study on extractive resolution of tropic acid by hydroxyethyl-β-cyclodextrin Reactive extraction is proposed as a promising approach to the resolution of tropic acid (TA), where hydroxyethyl-β-cyclodextrin (HE-β-CD) is used as a selective extractant. The reaction between tropic acid and extractant occurred in the aqueous phase, and kinetic studies of reactive extraction have been investigated in a Lewis-type stirred cell. The batch experiments have been performed to study the process parameters affecting the extraction rate including agitation speed, interfacial area, pH value of aqueous phase, initial concentration of tropic acid enantiomers and initial concentration of extractant on the initial extraction rate. The kinetic equation of the forward rate was deduced at the experiment condition: r TA+ = (4.041 × 10−3)[TA+][CD]2; r TA− = (3.1234 × 10−3)[TA−][CD]2. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemical Papers Springer Journals

Kinetic study on extractive resolution of tropic acid by hydroxyethyl-β-cyclodextrin

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Institute of Chemistry, Slovak Academy of Sciences
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering; Biochemistry, general; Medicinal Chemistry; Materials Science, general; Biotechnology
ISSN
0366-6352
eISSN
1336-9075
D.O.I.
10.1007/s11696-017-0304-7
Publisher site
See Article on Publisher Site

Abstract

Reactive extraction is proposed as a promising approach to the resolution of tropic acid (TA), where hydroxyethyl-β-cyclodextrin (HE-β-CD) is used as a selective extractant. The reaction between tropic acid and extractant occurred in the aqueous phase, and kinetic studies of reactive extraction have been investigated in a Lewis-type stirred cell. The batch experiments have been performed to study the process parameters affecting the extraction rate including agitation speed, interfacial area, pH value of aqueous phase, initial concentration of tropic acid enantiomers and initial concentration of extractant on the initial extraction rate. The kinetic equation of the forward rate was deduced at the experiment condition: r TA+ = (4.041 × 10−3)[TA+][CD]2; r TA− = (3.1234 × 10−3)[TA−][CD]2.

Journal

Chemical PapersSpringer Journals

Published: Sep 30, 2017

References

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