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2. 发明授权

US5349075A Continous esterification of carboxylic and fatty acids in the absense of a catalyst 失效
标题翻译：在催化剂缺乏的情况下，羧酸和脂肪酸的连续酯化
公开(公告)号：US5349075A
公开(公告)日：1994-09-20
申请号：US630990
申请日：1990-12-21
申请人： Hendrikus J. van den Berg , Robbert Klok
发明人： Hendrikus J. van den Berg , Robbert Klok
IPC分类号： C07C67/08 , C11C3/00
CPC分类号： C07C67/08
摘要： The invention provides a process for the esterification of a C.sub.2 -C.sub.24 monocarboxylic acid with a C.sub.1 -C.sub.5 monoalcohol in a reactor at an increased reaction temperature and increased pressure which is carried out in the absence of any esterification catalyst while continuously feeding in the alcohol during the reaction and removing a gaseous alcohol/water mixture. Preferably the process is carried out in countercurrent in column reactor which is packed or contains plates. The reaction temperature is usually between 200.degree. C. and 260.degree. C. at a pressure between 0.5 and 1.5 MPa. There is a C.sub.6 -C.sub.20 monocarboxylic acid and monoalcohol a C.sub.1 -C.sub.3 monoalcohol. More preferably the process is carried in two steps with a first step as described above and a second step in which further reaction to a conversion of at least 99% is carried out in the presence of an esterification catalyst at a temperature below 100.degree. C.
摘要翻译：本发明提供了一种在反应器中以增加的反应温度和增加的压力使C2-C24单羧酸与C1-C5一元醇酯化的方法，该方法是在没有任何酯化催化剂的情况下进行的，同时在醇中连续进料期间反应并除去气态醇/水混合物。优选地，该方法在塔式反应器中以包装或包含板的方式逆流进行。反应温度通常为200〜260℃，压力为0.5〜1.5MPa。有一种C6-C20一元羧酸和一元醇一种C1-C3一元醇。更优选地，该方法通过如上所述的第一步进行两个步骤，第二步是在低于100℃的温度下在酯化催化剂的存在下进行至少99％的转化率的进一步反应。

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