Method for regeneration of catalyst for producing of aziridine c

Details Method for regeneration of catalyst for producing of aziridine c Method for regeneration of catalyst for producing of aziridine c

1990-02-27

1990-12-11

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

502 34, 548969, B01J 2728, B01J 3842, B01J 3804, C07D20304

Patent

active

049771183

ABSTRACT:
A method for regeneration of catalyst which comprises phosphorus and alkali metal element and/or alkaline earth metal element and was deteriorated by use to produce aziridine compound represented by the general formula ##STR1## wherein R is hydrogen, a methyl group or an ethyl group, by a catalytic vapor-phase intramolecular dehydration reaction of alkanolamine represented by the general formula ##STR2## wherein R is as defined in the formula (II), X is OH or NH.sub.2, and Y is either NH.sub.2 when X is OH or OH when X is NH.sub.2, characterized in that the deteriorated catalyst is contacted with gaseous volatile phosphorus compound.

REFERENCES:
patent: 3474041 (1969-10-01), Kerr
patent: 4774218 (1988-09-01), Shimasaki et al.
patent: 4833248 (1989-05-01), Shimasaki et al.
patent: 4841060 (1989-06-01), Hino et al.
patent: 4841061 (1989-06-01), Shimasaki et al.
patent: 4861738 (1989-08-01), Edwards

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