Process for preparation for alkanolamine, catalyst used in...

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B01J 23/10 (2006.01) C07C 213/04 (2006.01) C07C 215/08 (2006.01)

Patent

CA 2134720

Abstract of the Disclosure A process is provided which comprises using a catalyst comprises a rare earth element supported on an inorganic heat-resisting carrier, when a monoethanolamine is selectively prepared by reacting an alkylene oxide with ammonia in a liquid phase. This catalyst has excel- lent monoalkanolamine selectivity and heat resistance; and therefore, even when the ratio of ammonia to the alkylene oxide is lower compared with cases where other catalysts are used, an equal or more amount of the mono- alkanolamine can be formed, and thus the recovery cost of the unreacted ammonia is reduced. Further, since the total amount of the feed raw materials is reduced, appa- ratuses for the reaction system and recovery system can be made smaller, and thus the cost of equipment is reduced.

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