VERFAHREN ZUR HERSTELLUNG VON POLYOXYMETHYLENDIMETHYLETHERN AUS METHANOL UND FORMALDEHYD

VERFAHREN ZUR HERSTELLUNG VON POLYOXYMETHYLENDIMETHYLETHERN AUS METHANOL UND FORMALDEHYD

Processes for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) include feeding a reaction mixture of an aqueous formaldehyde solution and methanol into a reactive evaporator and separating into a first low boiler fraction and a first high boiler fraction, recycling the first...

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Hauptverfasser: STROEFER, ECKHARD, BLAGOV, SERGEJ, HASSE, HANS
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creator STROEFER, ECKHARD
BLAGOV, SERGEJ
HASSE, HANS
description Processes for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) include feeding a reaction mixture of an aqueous formaldehyde solution and methanol into a reactive evaporator and separating into a first low boiler fraction and a first high boiler fraction, recycling the first high boiler fraction into the reactor, feeding the first low boiler fraction into a first distillation column and separating into a second low boiler fraction and a second high boiler fraction, recycling the second high boiler fraction into the reactive evaporator, feeding the second low boiler fraction into a second distillation column and separating into a third low boiler fraction and a third high boiler fraction, feeding the third high boiler fraction into a phase separation apparatus and separating into an aqueous phase and an organic phase, and feeding the organic phase into a third distillation column and separating into a low and high boiler fractions.
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title VERFAHREN ZUR HERSTELLUNG VON POLYOXYMETHYLENDIMETHYLETHERN AUS METHANOL UND FORMALDEHYD
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