PROCESS FOR PRODUCING AQUEOUS SOLUTION SODIUM CHLORIDE INDUSTRIAL AND USE OF AQUEOUS SODIUM CHLORIDE OBTAINED FOR ELECTROLYTIC PRODUCTION OF AN AQUEOUS SOLUTION OF SODIUM HYDROXIDE FOR THE MANUFACTURE SODIUM CARBONATE AND FOR MANUFACTURING SODIUM CHLORIDE CRYSTALS.

摘要

PCT No. PCT/EP92/00944 Sec. 371 Date Apr. 22, 1994 Sec. 102(e) Date Apr. 22, 1994 PCT Filed Aug. 31, 1992 PCT Pub. No. WO93/04983 PCT Pub. Date Mar. 18, 1993.Process for the manufacture of an industrial aqueous solution of sodium chloride, according to which an aqueous mixture (12) containing an aqueous solution of sodium chloride and of polyvalent metals is prepared by introducing into water (10) a solid product (8) collected from the dry-route treatment, with sodium bicarbonate (4), of smokes (2) containing hydrogen chloride, and the said aqueous medium (12) is treated in order to remove the polyvalent metals therefrom.