%0 Journal Article
%T Reaction Kinetics for Preparation of Methacrolein by Condensation of Formaldehyde with Propionaldehyde<br>甲醛和丙醛缩合制备甲基丙烯醛反应动力学
%A LI Yu-chao
%A YAN Rui-yi
%A WANG Lei
%A DIAO Yan-yan
%A <br>李玉超
%A 闫瑞一
%A 王蕾
%A 刁琰琰
%J 过程工程学报
%D 2012
%I 
%X A series of second amines were used to catalyze the synthesis of methacrolein from formaldehyde and propionaldehyde via Mannich reactionBy using diethylamine,the highest yield of 94% was obtained.The kinetic model was obtained by analysis of the reaction process.The parameters in the model were determined:reaction order 2.456,activation energy 62.45 kJ/mol and frequency factor 8.182×107（mol/L）-1.456/s.In situ FT-IR spectroscopy was introduced to monitor the concentration of compounds in real time during the reaction.The samples taken in different reaction times were analyzed by GC-MS,and the intermediate Mannich base was detected,laying a foundation for the reaction mechanism.
%K methacrolein
%K diethylamine
%K Mannich reaction
%K kinetics<br>甲基丙烯醛
%K 二乙胺
%K 曼尼希反应
%K 动力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=3FCF8B1A330466D5&jid=B9EE12934D19905403D996AE65CEEEED&aid=21CB0722CA48644FBCECB214255597E1&yid=99E9153A83D4CB11&vid=59906B3B2830C2C5&iid=E158A972A605785F&sid=3B2BF7AC5674E8E2&eid=D647AF4730396036&journal_id=1009-606X&journal_name=过程工程学报&referenced_num=0&reference_num=0