发明名称 |
Recovery of hexamethylenediame (hmd) with low polarographically reducible impurities (pri) from mixtures of hmd, aminocapronitrile and pri |
摘要 |
A method for separating a mixture of hexamethylenediamine, aminocapronitile and polarographically reducible impurities using fractional distillation in which the temperature in the rectifying zone of a distillation column varies sigmoidally along its length to force a major portion of the PRI to co-distill with the aminocapronitrile.
|
申请公布号 |
KR20030059213(A) |
申请公布日期 |
2003.07.07 |
申请号 |
KR20037005742 |
申请日期 |
2003.04.25 |
申请人 |
DU PONT |
发明人 |
SCOTT LEON S;OSTERMAIER JOHN JOSEPH |
分类号 |
C07C209/86;C07C211/12 |
主分类号 |
C07C209/86 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|