A process for the production of polynuclear aromatic polyamines

Details A process for the production of polynuclear aromatic polyamines A process for the production of polynuclear aromatic polyamines

C - Chemistry, Metallurgy

07

C

C07C 209/78 (2006.01) C07C 211/54 (2006.01)

Patent

CA 2065642

Mo3696 LeA 28,179 A PROCESS FOR THE PRODUCTION OF POLYNUCLEAR AROMATIC POLYAMINES ABSTRACT OF THE DISCLOSURE The invention relates to an improved process for the production of polynuclear aromatic polyamines by condensation of aniline with formaldehyde in the presence of water and acidic catalysts and working up of the reaction mixture by extraction with a hydrophobic solvent, the acid catalyst accumulating in the aqueous phase of the extraction step being reused. Mo3696

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