METHOD FOR PRODUCING ELECTRONIC GRADE 2,2'-AMINOETHOXYETHANOL

A process for preparing electronics-grade 2,2′-aminoethyoxyethanol by reacting diethylene glycol with ammonia in the presence of a catalyst in a reactor to give a reaction mixture from which a crude 2,2′-aminoethoxyethanol stream is separated off and is purified further by distillation in a pure col...

Full description

Saved in:
Bibliographic Details
Main Authors SCHMIDTKE, HELMUT, RUDLOFF, MARTIN
Format Patent
LanguageEnglish
French
German
Published 15.07.2009
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online AccessGet full text

Cover

More Information
Summary:A process for preparing electronics-grade 2,2′-aminoethyoxyethanol by reacting diethylene glycol with ammonia in the presence of a catalyst in a reactor to give a reaction mixture from which a crude 2,2′-aminoethoxyethanol stream is separated off and is purified further by distillation in a pure column, wherein a sidestream comprising electronics-grade 2,2′-aminoethoxyethanol is taken off from the pure column as a result of the diethylene glycol being passed through a filter which ensures a degree of removal of at least 99% for solid particles having a maximum particle size of 1.5 μm before the diethylene glycol is fed into the reactor, is proposed.
Bibliography:Application Number: EP20070820444