Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/8885
Title: Remarkable effects of deep eutectic solvents on the esterification of lactic acid with ethanol over Amberlyst-15
Authors: Ünlü, Ayşe Ezgi
Arıkaya, Azime
Altundağ, Aybike
Takaç, Serpil
Keywords: Ethyl Lactate
Esterification
Amberlyst-15
Deep eutectic solvent
Publisher: Springer
Abstract: Deep eutectic solvents (DESs) are widely used in numerous reactions both as a solvent and a catalyst. In this study, different types of DESs were investigated as a supplementary component for Amberlyst-15 to enhance its catalytic activity in the esterification reaction of lactic acid with ethanol. The effects of the following parameters such as DES type, choline chloride : glycerol (ChCl-Gly) (1 : 2) amount, molar ratio of reactants, temperature and agitation rate on the initial rate of reaction and yield of ethyl lactate were investigated. According to the results, DESs alone did not have any catalytic effect on the esterification; however, DESs together with Amberlyst-15 provided a significant increase in the initial rate of reaction and yield. The activation energy of the reaction decreased significantly with the combined use of Amberlyst-15 and ChCl-Gly (1 : 2). Internal and external mass transfer limitations were found to be negligible under optimum reaction conditions.
URI: https://doi.org/10.1007/s11814-019-0385-9
https://hdl.handle.net/11147/8885
ISSN: 0256-1115
1975-7220
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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