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Kinetics of esterification of the levulinic acid with n ‐hexanol, n ‐octanol, and n ‐decanol in the presence of dodecatungstophosphoric acid as a catalyst
Author(s) -
Hamryszak Łukasz,
Grzesik Mirosław
Publication year - 2019
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.21288
Subject(s) - chemistry , levulinic acid , catalysis , kinetics , hexanol , alcohol , activation energy , octanol , organic chemistry , chemical kinetics , medicinal chemistry , nuclear chemistry , partition coefficient , physics , quantum mechanics
Levulinic acid was esterified with n ‐hexanol, n ‐octanol, and n ‐decanol at 393–413 K and at molar ratios of between 3:1 and 10:1 (alcohol: acid) in the presence of the dodecatungstophosphoric acid (H 3 PW 12 O 40 ) as catalyst (0.1 wt%) to study the reaction kinetics. The results of such study are the precise form of kinetic equation, which is indispensable in design and optimization of industrial‐scale chemical reactors. The authors stated that reactions were of second order and that the activation energy ( E ) decreased from 66 to 53 kJ/mol in the following alcohol sequence: n ‐hexanol > n ‐octanol > n ‐decanol.