Title:
PRODUCTION OF 1,3-DIAMINOPROPANE
Document Type and Number:
Japanese Patent JP3417597
Kind Code:
B2
Abstract:
PURPOSE: To reduce the poisoning of a catalyst, enable recycling use of the catalyst, and improve the production yield by performing a reaction in an alcohol solvent, when a 1,3-diaminopropane is produced from acrylonitrile by a continuous through production method.
CONSTITUTION: In a method for producing 1,3-diaminopropane by reacting acrylonitrile with ammonia and subsequently catalytically reducing the reaction product, the reaction is performed in an alcohol solvent. The alcohol comprises one or more kinds of methanol, ethanol, propanol, isopropanol, butanol, secondary butanol, isobutanol, teriary butanol, methoxyethanol, ethoxyethanol, isopropoxyethanol, methoxyisopropanol, ethoxyisopropanol and isopropoxyisopropanol. The method enables to improve the reaction rate, shorten the reaction time, reduce the production of high boiling point by-products, facilitate the purification of the 1,3-diaminopropane, and largely reduce wastes. Therefore, the method is industrially and economically advantageous.
Inventors:
Yasuyuki Takayanagi
Takahiro Ohinata
Takahiro Ohinata
Application Number:
JP8396093A
Publication Date:
June 16, 2003
Filing Date:
March 19, 1993
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
B01J23/75; B01J23/74; B01J23/755; B01J25/00; B01J25/02; C07B61/00; C07C209/48; C07C211/11; (IPC1-7): C07C209/48; C07C211/11
Domestic Patent References:
| JP5441804A | ||||
| JP4214614B1 | ||||
| JP4623046B1 |
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