PROCESS FOR SEPARATING CARBON DIOXIDE FROM A GASOUS MIXTURE

摘要

A process for separating acid gases from gaseous mixtures by absorption in alkaline solutions such as potassium carbonate solution wherin corrosion caused by the absorbing solution is reduced by inclusion therein of an aromatic compound. The aromatic compound has at least one nitro group and at least one hydroxyl group substituted in the same benzene nucleus. The invention is particularly applicable when the absorbent is a potassium carbonate solution activated by arsenic ions.