NAKANIS HI NOZOMU,ANDO TAKASHI,MINOWA NOBUTO,MITOMI MASAAKI
申请号：
IN1709/CHENP/2014
公开号：
IN299542B
申请日:
2012.09.28
申请国别(地区):
IN
年份:
2018
代理人:
摘要：
The present invention provides a method for producing crystalline glufosinate P free acid with high purity from glufosinate P hydrochloride salt. In addition, the present invention also provides a method comprises a process of: dissolving glufosinate P hydrochloride salt in a solvent which is a mixed solvent of water and an alcohol(s) selected from the group of methanol, ethanol, propyl alcohol and isopropyl alcohol, and a ratio of water to the alcohol(s) is from 1:3 to 1:100 by volume crystallizing glufosinate P free acid after neutralizing by addition of a base. EP2762484A1
