Process for producing nitrilotriacetonitrile

Details Process for producing nitrilotriacetonitrile Process for producing nitrilotriacetonitrile

1984-03-07

1988-03-15

Brust, Joseph P.

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

C07C12000

Patent

active

047314656

ABSTRACT:
A continuous process for preparing nitrilotriacetonitrile in which the reactants, formaldehyde, hydrogen cyanide, and either ammonia or hexamethylenetetramine are reacted first in a mixing reactor, preferably a circulating loop reactor at from about 90.degree. C. to about 120.degree. C., then reacted in a plug flow tubular reactor at from about 95.degree. C. to about 120.degree. C., then after cooling the reaction mixture crystalline nitrilotriacetonitrile is recovered.

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patent: 3840581 (1974-10-01), Neumaier
patent: 3856844 (1974-12-01), Wikman
patent: 3907858 (1975-09-01), Davis
patent: 3925448 (1975-12-01), Lanier
patent: 3950384 (1976-04-01), Neumaier
patent: 3959342 (1976-05-01), Homberg
patent: 3984453 (1976-10-01), Chamberek

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