Process for the production of liquid chlorine

Details Process for the production of liquid chlorine Process for the production of liquid chlorine

C - Chemistry, Metallurgy

25

B

204/78.1

C25B 1/26 (2006.01) C01B 7/07 (2006.01) C01B 7/075 (2006.01) F25J 3/06 (2006.01)

Patent

CA 1155793

ABSTRACT OF THE DISCLOSURE In the electrolysis of an aqueous alkali metal chloride solution, a mixture of anolyte and steam-saturated gaseous chlorine is formed in the anode space of the electrolytic cell. According to the invention, the process is car- ried out under a pressure of at least 8 bars. For work-up, the anolyte is at first separated from the steam-saturated gaseous chlorine which is then liquefied under a pressure of at least 8 bars by cooling. In the course of cooling there is obtained a condensate which consists of a liquid water-saturated chlorine phase and a liquid chlorine-saturated water phase. The temperature of said condensate is maintained at 28°C or above during cooling. Finally, the light- weight water phase is separated from the chlorine phase having a heavier spec- ific weight.

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