Method for decolorization of alkanolamines and alkyleneamines

Details Method for decolorization of alkanolamines and alkyleneamines Method for decolorization of alkanolamines and alkyleneamines

1993-06-28

1998-12-08

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

564497, C07C20900

Patent

active

058472215

ABSTRACT:
Color-containing alkanolamines or alkyleneamines, having color numbers of up to 100 PtCo or higher, can be treated with polymeric solid acidic catalysts at elevated temperatures. Perfluorinated ion-exchange polymers in the acid form may be used as the polymeric solid acidic catalyst. In the presence of added water, these polymeric solid acidic catalysts produce decolorized alkanolamines or alkyleneamines having color numbers of 20 PtCo or less. The process of decolorization can be carried out in batch or continuous mode processes thus providing low cost, high quality and high purity end products.

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ACS Symposium Series 308, "Polymeric Reagents and Catalysts", W.T. Ford, 1985, pp. 42-67.

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