发明公开
EP2961731A1 VERFAHREN ZUR HERSTELLUNG VON EDA UNTER VERWENDUNG VON SO2-FREIER BLAUSÄURE
有权
用于生产EDA使用SO2免费BLUE ACID
- 专利标题: VERFAHREN ZUR HERSTELLUNG VON EDA UNTER VERWENDUNG VON SO2-FREIER BLAUSÄURE
- 专利标题(英): Method for producing eda using so2-free hydrocyanic acid
- 专利标题(中): 用于生产EDA使用SO2免费BLUE ACID
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申请号: EP14706796.1申请日: 2014-02-12
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公开(公告)号: EP2961731A1公开(公告)日: 2016-01-06
- 发明人: LUYKEN, Hermann , JAEGLI, Stephanie , LORENZ, Michael , BRASCHE, Gordon , JEGELKA, Markus , BECKER, Barbara , BAUMANN, Robert , MELDER, Johann-Peter , BUSCHHAUS, Boris , KRUG, Thomas
- 申请人: BASF SE
- 申请人地址: 67056 Ludwigshafen DE
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: 67056 Ludwigshafen DE
- 代理机构: Ellwanger & Baier Patentanwälte Partnerschaftsgesellschaft
- 优先权: EP13157251 20130228
- 国际公布: WO2014131620 20140904
- 主分类号: C07C209/48
- IPC分类号: C07C209/48 ; C07C209/86 ; C07C253/08 ; C07C253/30
摘要:
The invention relates to a method for producing ethylene diamine (EDA), wherein the method comprises the steps a) to c). In step a), formaldehyde is converted with hydrocyanic acid (HCN) to formaldehyde-cyanohydrine (FACH), wherein the hydrocyanic acid is completely free or extensively free of sulfur dioxide (SO
2 ). The FACH thus produced is converted in step b) with ammonia (NH
3 ) to aminoacetone-nitrile (AAN), and, in step c), hydrogenation of AAN to EDA occurs in the presence of a catalyst.
2 ). The FACH thus produced is converted in step b) with ammonia (NH
3 ) to aminoacetone-nitrile (AAN), and, in step c), hydrogenation of AAN to EDA occurs in the presence of a catalyst.
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