Method of preparing polyethylene polyamines having improved...

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

C - Chemistry, Metallurgy

07

C

260/612.5

C07C 87/16 (1985.01) C07C 87/20 (1985.01)

Patent

CA 1206977

METHOD OF PREPARING POLYETHYLENE POLYAMINES HAVING IMPROVED COLOR ABSTRACT OF THE DISCLOSURE 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. S P E C I F I C A T I O N - 1 -

397076

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