process for the preparation of an aqueous solution of sodium chloride and method of preparation of sodium bicarbonate.

摘要

Process for the preparation of an aqueous solution of sodium chloride, according to which sodium bicarbonate is decomposed in an aqueous solution by means of a chloride of an organic cation, the carbon dioxide formed is removed and rock salt is added to the resulting aqueous solution. The process applies to the preparation of an aqueous solution of sodium chloride from a mother liquor from the crystallisation of sodium bicarbonate and an organic solution of amine hydrochloride, which are obtained by treating an aqueous solution of sodium chloride, an organic solution of a water-insoluble amine and carbon dioxide.