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Green Medium for the Hydrolysis of 5‐Cyanovaleramide
Author(s) -
Duan P.G.,
Li S.,
Yang Y.,
Wang Z.Z.,
Dai L.Y.
Publication year - 2009
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200800607
Subject(s) - arrhenius equation , hydrolysis , activation energy , chemistry , kinetics , catalysis , hydrolysis constant , amide , thermodynamics , carbon fibers , residence time (fluid dynamics) , reaction rate constant , organic chemistry , materials science , composite number , physics , geotechnical engineering , quantum mechanics , engineering , composite material
Hydrolysis of 5‐cyanovaleramide (5‐CVAM) in near‐critical water without the addition of any catalyst has been demonstrated. The results demonstrated that the cyano group at one end of the carbon of 5‐CVAM is more reactive than the amide group at the other end, under the same experimental conditions. The relations between 5‐CVAM concentration and residence time revealed that hydrolysis of 5‐CVAM shows second‐order reaction kinetics in the investigated temperature range. The rate constants, average apparent activation energy and pre‐exponential factor were evaluated according to the Arrhenius equation. Based on the experimental results, a carbon balance was calculated, and a hydrolysis reaction scheme of 5‐CVAM was proposed.