The invention relates to a process for the purification of carboxylic acid comprising the steps of:
a) the carboxylic acid is transformed to its monoester and/or its diester, and
b) the mono- and/or the diester of the carboxylic acid is processed by subritical or supercritical fluid chromatography using a subcritical or supercritical mobile phase.
本发明涉及一种提纯
羧酸的工艺,其步骤包括
a) 将
羧酸转化为其单
酯类和/或二
酯类,以及
b) 使用亚临界或超临界流动相,通过亚临界或超临界流体色谱法处理
羧酸单酯和/或二酯。