Process for producing high purity trialkanolamine

Details Process for producing high purity trialkanolamine Process for producing high purity trialkanolamine

2007-01-16

2007-01-16

Davis, Brian (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S497000

Reexamination Certificate

active

10770297

ABSTRACT:
A process for producing a high purity trialkanolamine excelling in hue and having an APHA of not more than 40, characterizing by including producing a mixed alkanolamine by the reaction of an alkylene oxide with ammonia; removing low-boiling substances from the mixed alkanolamine; removing high-boiling substances by subjecting the product deprived of the low-boiling substance to vacuum distillation, and redistilling the distillate obtained by the vacuum distillation.

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