Purification of aminonitriles or diamines

Details Purification of aminonitriles or diamines Purification of aminonitriles or diamines

1991-09-10

1993-03-09

Manoharan, Virginia

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 37, 203 91, 203DIG6, 558452, 558456, 558463, B01D 310, B01D 334, C08F 2042

Patent

active

051923998

ABSTRACT:
Separation of an aliphatic aminonitrile or an aliphatic diamine from a mixture containing the corresponding cyclic, aliphatic, mono-unsaturated amine by adding caustic compound to the mixture and then distilling the aminonitrile or the diamine at a temperature less than 170.degree. C. and at a pressure of less than 1 atmosphere.

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