Process for the production of polynuclear aromatic polyamines

Details Process for the production of polynuclear aromatic polyamines Process for the production of polynuclear aromatic polyamines

1989-04-06

1990-05-08

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

564333, 564334, C07C 8750

Patent

active

049240285

ABSTRACT:
This invention relates to an improved process for the preparation of polynuclear aromatic polyamines in which the reaction product is prepared by condensing aniline with formaldehyde in the presence of water and acidic catalysts and is worked up by extraction with a hydrophobic solvent. The acid catalyst that accumulates in the aqueous phase during the extraction process is reused.

REFERENCES:
patent: 3952042 (1976-04-01), Knofel
patent: 3996283 (1976-12-01), Knoefel
patent: 4061678 (1977-12-01), Knofel et al.
patent: 4087459 (1978-05-01), Knofel et al.
patent: 4093658 (1978-06-01), Knofel et al.

Affiliated with

Also associated with

Rating

Process for the production of polynuclear aromatic polyamines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of polynuclear aromatic polyamines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of polynuclear aromatic polyamines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2350361