PROCESS FOR SEPARATING GASEOUS CONSTITUENTS

The present invention provides a process for removing gaseous constituents dissolved in liquid reaction mixtures in the copolymerization of alkylene oxide and carbon dioxide, characterized in that(η) prior to decompression the liquid reaction mixture has a pressure of 5.0 to 100.0 bar (absolute), wherein the following process stages are performed in the specified sequence:(i) decompression of the reaction mixture by at least 50% of the prevailing pressure,(ii) subsequent droplet separation with first defoaming and(iii) subsequent bubble separation with second defoaming to clarify the liquid phase, wherein the process stages (i) to (iii) are performed one or more times until the resulting reaction mixture has a pressure of 0.01 to