发明授权
- 专利标题: Process for the manufacture of ethylenediamine
- 专利标题(中): 制造乙二胺的方法
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申请号: US307215申请日: 1981-09-30
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公开(公告)号: US4400539A公开(公告)日: 1983-08-23
- 发明人: Charles A. Gibson , John R. Winters
- 申请人: Charles A. Gibson , John R. Winters
- 申请人地址: CT Danbury
- 专利权人: Union Carbide Corporation
- 当前专利权人: Union Carbide Corporation
- 当前专利权人地址: CT Danbury
- 主分类号: C07B61/00
- IPC分类号: C07B61/00 ; B01J23/00 ; B01J23/84 ; C07C67/00 ; C07C209/00 ; C07C209/16 ; C07C209/60 ; C07C211/10 ; C07C85/06 ; C07C89/02
摘要:
There is described a continuous process for the manufacture of ethylenediamine from the products of the reaction of ethylene oxide and ammonia, provision of a continuous recycle stream of monoethanolamine to the products of the reaction of ethylene oxide and ammonia, the amination of such products of the reaction of ethylene oxide and ammonia combined with the monoethanolamine recycle in which the feed stream to the amination reaction zone contains at least 70 weight percent monoethanolamine as well as diethanolamine and triethanolamine, the moles of ammonia provided to the amination reaction exceeds the molar concentration of alcoholic hydroxyl groups present in the amination feed, and the feed to the amination reactor contains at least a 5% increase in the concentration of monoethanolamine over the concentration of monoethanolamine in the reaction product stream from the reaction of ethylene oxide and ammonia.
公开/授权文献
- US5550294A Method of increasing hydrogenation rate of aromatic amines 公开/授权日:1996-08-27
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