Inhibitors of color formation in alkanolamines

Details Inhibitors of color formation in alkanolamines Inhibitors of color formation in alkanolamines

1996-04-12

1997-12-02

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

C07C20990

Patent

active

056938667

ABSTRACT:
In the thermal processing of crude alkanolamines, a method of inhibiting color formation in the alkanolamines comprising adding an amount, effective for the purpose, of an alkali metal hydroxide or sulfite, or mixtures thereof.

REFERENCES:
patent: 3819710 (1974-06-01), Jordan
patent: 4673762 (1987-06-01), Paslean et al.
patent: 5113017 (1992-05-01), Smith et al.
patent: 5359139 (1994-10-01), Smith et al.

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