naa a22 4500 510818943 CHVBK 20180411092759.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11814-012-0145-6 doi (NATIONALLICENCE)springer-10.1007/s11814-012-0145-6 Reactive-extraction of 2,3-butanediol from fermentation broth by propionaldehyde: Equilibrium and kinetic study [Elektronische Daten] [Yanjun Li, Jiawen Zhu, Yanyang Wu, Jiaxian Liu] An effective process was developed to separate 2,3-butanediol (2,3-BD) from fermentation broth (FB) by reactive-extraction. Propionaldehyde (PRA) was used as reactant and reaction product 2-ethyl-4,5-dimethyl-1,3-dioxolane (EDD) acted as extractant. HCl was selected as catalyst. Appropriate conditions were obtained by experiment as follows: 10 °C, C HCl =0.2mol·L−1, two-stage cross-current extraction, reactant volume ratio (V PRA : V FB ) for first stage and second stage is 0.10 and 0.05, respectively. The yield rate of 2,3-butanediol for the whole process can reach 90% w/w, and 2,3-butanediol in the final product can be more than 99% w/w. The novel process required less solution and especially had advantages in treating dilute fermentation broth. Furthermore, equilibrium and kinetic study were investigated on the reaction of propionaldehyde and 2,3-butanediol to provide basic data for process development. The results reveal that reaction enthalpy and activation energy of the reaction were −21.84±2.38 KJ·mol−1 and 51.97±2.84 KJ·mol−1, respectively. Kinetics was well described by pseudo-homogeneous model. Korean Institute of Chemical Engineers, Seoul, Korea, 2012 2,3-Butanediol nationallicence Reactive-extraction nationallicence Kinetics nationallicence Propionaldehyde nationallicence Fermentation Broth nationallicence Li Yanjun Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut Zhu Jiawen Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut Wu Yanyang Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut Liu Jiaxian Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/1(2013-01-01), 73-81 0256-1115 30:1<73 2013 30 11814 https://doi.org/10.1007/s11814-012-0145-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-012-0145-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Yanjun Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut NATIONALLICENCE 700 1- Zhu Jiawen Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut NATIONALLICENCE 700 1- Wu Yanyang Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut NATIONALLICENCE 700 1- Liu Jiaxian Chemical Engineering Research Center, East China University of Science & Technology, 200237, Shanghai, China aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/1(2013-01-01), 73-81 0256-1115 30:1<73 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 510818943 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer