| abstract |
The solution consists in the production of acetic acid with a purity of up to 99% or higher in the production of low water carbonylation in the reaction mixture, which usually results in the formation of permanganate reducing substances such as acetyldehyde, propionic acid and alkyliodide, which eliminate these undesirable substances. byproducts from the light product phase using repeated distillation combined with optional extraction of acetaldehyde. In this way, it is also possible to prevent the polymerization of acetaldehyde in the distillation columns, thus avoiding fouling, especially when the columns are switched off. |