Invention Grant
US6139693A Method for obtaining hexamethylene diamine from mixtures containing
hexamethylene diamine
有权
从含有六亚甲基二胺的混合物中获得六亚甲基二胺的方法
- Patent Title: Method for obtaining hexamethylene diamine from mixtures containing hexamethylene diamine
- Patent Title (中): 从含有六亚甲基二胺的混合物中获得六亚甲基二胺的方法
-
Application No.: US367070Application Date: 1999-08-09
-
Publication No.: US6139693APublication Date: 2000-10-31
- Inventor: Peter Bassler , Rolf Fischer , Hermann Luyken , Alwin Rehfinger , Guido Voit
- Applicant: Peter Bassler , Rolf Fischer , Hermann Luyken , Alwin Rehfinger , Guido Voit
- Applicant Address: DEX
- Assignee: BASF Aktiengesellschaft Ludwigshafen
- Current Assignee: BASF Aktiengesellschaft Ludwigshafen
- Current Assignee Address: DEX
- Priority: DEX19704612 19970207
- Main IPC: C07C209/84
- IPC: C07C209/84 ; C07C209/86 ; C07C211/12 ; B01D3/10 ; B01D3/34
Abstract:
A process for recovering hexamethylenediamine (I) from a mixture (II) including(I) hexamethylenediamine,(III) hexamethyleneimine,(IV) a compound selected from 2-aminomethylcyclopentylamine and 1,2-diaminocyclohexane,(V) an imine,(VI) adiponitrile and 6-aminocapronitrileincludes distilling(a) a mixture (II) to obtain(a1) a low boiling fraction (III),(a2) a medium boiling fraction (VII) (I), (IV) and (V), and(a3) a high boiling fraction (V) and (VI),(b) a mixture (VII) to obtain(b1) an overhead product (IV), and(b2) a mixture (VIII) (I) and (V) as bottom product, and(c) a mixture (VIII) to obtain(c1) (I) as overhead product, and(c2) a bottom product (V).
Public/Granted literature
- US5888763A Peptides specific for the first Crk-SH3 domain Public/Granted day:1999-03-30
Information query
