REINIGUNG VON SAUERSTOFFHALTIGEM RECYCLING-GAS AUS DER OZONISIERUNG

A process for separating and recovering organic compounds from an oxygen-containing recycle gas deriving from an ozonization process is disclosed. The process comprises the separation of products in form of fumes from the gas, the countercurrent scrubbing of the gas with a polyoxyalkyleneglycol containing 2-4 carbon atoms, pre-treated with a monocarboxylic acid anhydride and/or the countercurrent scrubbing of the gas with the polyoxyalkyleneglycol or with an excess of a base. The organic compounds are recovered either by stripping (at atmospheric pressure or under vacuum) or by hydrolysis followed by distillation (at atmospheric pressure or under vacuum).