公开(公告)号：US11008279B2

公开(公告)日：2021-05-18

申请号：US16704000

申请日：2019-12-05

申请人： CIBTAmerica Inc. ,  Cathay Biotech Inc.

发明人： Bingbing Qin ,  Charlie Liu ,  Shanshi Guo ,  Benliang Hou ,  Xiucai Liu

IPC分类号： C07C211/09 ,  C07C209/84 ,  C07C209/00 ,  C07C209/82

摘要： Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.

公开(公告)号：US10538481B2

公开(公告)日：2020-01-21

申请号：US15537168

申请日：2014-12-17

申请人： Cathay Biotech Inc. ,  CIBT America Inc.

发明人： Bingbing Qin ,  Charlie Liu ,  Shanshi Guo ,  Benliang Hou ,  Xiucai Liu

IPC分类号： C07C211/09 ,  C07C209/84 ,  C07C209/00 ,  C07C209/82

摘要： Provided is a method for purifying 1,5-pentanediamine comprising: providing 1,5-pentanediamine to be purified and treating the 1,5-pentanediamine to be purified by a reduction reaction to obtain purified 1,5-pentanediamine. Meanwhile, further provided is 1,5-pentanediamine prepared by the method. The purification method has a concise process and a simple operation, and is suitable for industrial production, and can significantly improve the quality of 1,5-pentanediamine.