Method of preparing polyethylene polyamines having improved colo

Details Method of preparing polyethylene polyamines having improved colo Method of preparing polyethylene polyamines having improved colo

1984-02-08

1986-02-11

Shaver, Paul F.

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

Organic compounds

Amino nitrogen containing

564497, 564511, 564512, C07C 8500, C07C 8526

Patent

active

045700192

ABSTRACT:
A process is provided which may be run continuously for producing polyethylene polyamines having improved color characteristics which comprises treating discolored polyethylene polyamines with polyethylene polyamine hydrochloride in the presence of water at elevated temperatures for the time necessary to reduce the color of said polyethylene polyamines and then flash evaporating the decolorized polyethylene polyamines from the treating mixture.

REFERENCES:
patent: 3168569 (1965-02-01), Matell
patent: 3207790 (1965-09-01), Glew et al.
patent: 3217026 (1965-11-01), Vertnik et al.
patent: 3595921 (1971-07-01), Pitts
patent: 3723529 (1973-03-01), Pitts et al.
patent: 3819710 (1974-06-01), Jordan

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