Processo de separação de ácido glioxilico a partir de um meio de reação aquoso contendo ácido glioxilico e o ácido cloridrico

摘要

The invention relates to a process for separating glyoxylic acid starting from an aqueous reaction medium containing glyoxylic acid and hydrochloric acid, comprising a step of countercurrent steam stripping of the reaction medium in order to obtain, on the one hand, a gas phase containing the volatile hydrochloric acid and, on the other hand, a liquid phase containing the purified glyoxylic acid.