Halogenated aromatic amines which are stable in color, and a pro

Distillation: processes – separatory – Distillation in apparatus or element of specific material

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202267R, B01D 314

Patent

active

043505732

ABSTRACT:
Halogenated aromatic amines are rendered colorstable by distillation and/or storing in equipment made of a rustproof material such as a Cr/Ni/Mo steel, tin, zinc, enamel, glass and/or ceramic material.

REFERENCES:
patent: 3274077 (1966-09-01), Hoffenberg et al.

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