[EN] PROCESS FOR PREPARING CYCLIC ESTERS AND CYCLIC AMIDES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ESTERS CYCLIQUES ET D'AMIDES CYCLIQUES
申请人:TOTAL RES & TECHNOLOGY FELUY
公开号:WO2014122294A1
公开(公告)日:2014-08-14
The invention relates to a process for preparing a cyclic ester or a cyclic amide, comprising the step of: contacting at least one hydroxycarboxylic acid and/or at least one amino-carboxylic acid; or an ester, or salt thereof; wherein said hydroxycarboxylic acid is a 2-hydroxycarboxylic acid,or a 6–hydroxycarboxylic acid; and wherein said amino carboxylic acid is a 2-amino-carboxylic acid or a 6-amino-carboxylic acid; with at least one acidic zeolite comprising: - two or three interconnected and non-parallel channel systems, wherein at least one of said channel systems comprises 10-or more-membered ring channels; and a framework Si/X2 ratio of at least 24 as measured by NMR; or - three interconnected and non-parallel channel systems, wherein at least two of said channel systems comprise 10-or more-membered ring channels; and a framework Si/X2 ratio of at least 6 as measured by NMR; wherein each X is Al or B, and wherein the process is performed at a pressure between 0.5 and 20 bar.
该发明涉及一种制备环酯或环酰胺的过程,包括以下步骤:接触至少一种羟基羧酸和/或至少一种氨基羧酸;或其酯或盐;其中所述羟基羧酸是2-羟基羧酸或6-羟基羧酸;所述氨基羧酸是2-氨基羧酸或6-氨基羧酸;与至少一种含有酸性沸石的接触:- 两个或三个相互连接且非平行的通道系统,其中至少一个通道系统包括10个或更多环成员的环通道;并且通过NMR测量的框架Si/X2比至少为24;或- 三个相互连接且非平行的通道系统,其中至少两个通道系统包括10个或更多环成员的环通道;并且通过NMR测量的框架Si/X2比至少为6;其中每个X是Al或B,并且该过程在0.5至20巴的压力下进行。