Decolorization of alkanolamines and alkyleneamines

Details Decolorization of alkanolamines and alkyleneamines Decolorization of alkanolamines and alkyleneamines

C - Chemistry, Metallurgy

07

C

C07C 215/14 (2006.01) C07C 209/84 (2006.01) C07C 211/02 (2006.01) C07C 213/10 (2006.01)

Patent

CA 2126794

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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