Process for the preparation of iminodiacetonitrile

C - Chemistry – Metallurgy – 07 – C

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260/561.2

C07C 255/61 (2006.01) C07C 253/00 (2006.01) C07C 253/30 (2006.01) C07C 255/24 (2006.01) C07C 255/25 (2006.01)

Patent

CA 1297905

09-21(2415)A ABSTRACT A PROCESS FOR PREPARING IMINODIACETONITRILE A process for preparing iminodiacetonitrile which comprises bringing together under reaction conditions formaldehyde, hydrogen cyanide and a source of ammonia under substantially stoichiometric conditions at a temperature between about 30° and about 65°C at a pH between about 1.5 and about 5.5, preferably between about 3.5 and about 5.3, to produce the desired iminodiacetonitrile.

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