- 专利标题: SEPARATION OF N-METHYLETHYLENEDIAMINE FROM EDA-CONTAINING MIXTURES
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申请号: US17783280申请日: 2020-12-03
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公开(公告)号: US20230008827A1公开(公告)日: 2023-01-12
- 发明人: Michael JOEDECKE , Joerg PASTRE
- 申请人: BASF SE
- 申请人地址: DE Ludwigshafen am Rhein
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Ludwigshafen am Rhein
- 优先权: EP19216120.6 20191213
- 国际申请: PCT/EP2020/084404 WO 20201203
- 主分类号: C07C67/48
- IPC分类号: C07C67/48 ; C07C211/10 ; C07C209/84 ; C07C209/86 ; C07C29/141
摘要:
A process for producing EDA from a mixture comprising water (H2O), ethylenediamine (EDA) and N-methylethylenediamine (NMEDA) by feeding the mixture into a rectification column, wherein the rectification column is operated at the top pressure in the range of 5.0 to 7.5 bar.
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