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    • 6. 发明申请
    • PROCESS FOR THE PREPARATION OF ADIPIC ACID
    • 制备丙二酸的方法
    • US20150329460A1
    • 2015-11-19
    • US14653010
    • 2013-12-19
    • DSM IP ASSETS B.V.
    • Michele Catherine Christianne JANSSENJacob VAN SOOLINGENHenricus Wilhelmus Leonardus Marie VAESSEN
    • C07C51/09C07C55/14
    • C07C51/09C07C55/14
    • The invention relates to a process for the preparation of adipic acid from adipic acid alkyl ester comprising: subjecting an adipic acid alkyl ester to a hydrolysis reaction in the presence of water, at conditions of temperature and time suitable to form a hydrolysate comprising adipic acid; and optionally recovering adipic acid from said hydrolysate, characterized in that the hydrolysis reaction is carried out in the initial presence of adipic acid, and further to adipic acid obtained by the process. The invention also relates to the use of adipic acid as an acid catalyst in the hydrolysis of adipic acid alkyl ester. The process may advantageously be carried out in the absence of a mineral acid or a heterogeneous catalyst. The adipic acid produces with the process may be low in metals and/or sulphates.
    • 本发明涉及一种从己二酸烷基酯制备己二酸的方法,包括:在适宜形成包含己二酸的水解产物的温度和时间的条件下,使己二酸烷基酯在水存在下进行水解反应; 并且任选地从所述水解产物中回收己二酸,其特征在于水解反应在己二酸的初始存在下进一步进行,并进一步通过该方法获得的己二酸进行。 本发明还涉及在己二酸烷基酯的水解中使用己二酸作为酸催化剂。 该方法可有利地在不存在无机酸或多相催化剂的情况下进行。 己二酸产生的方法可能是低的金属和/或硫酸盐。