Hypochlorous acid process

Details Hypochlorous acid process Hypochlorous acid process

1989-10-25

1991-08-06

Russel, Jeffrey E.

Chemistry of inorganic compounds

Halogen or compound thereof

Ternary compound

C01B 1104

Patent

active

050376276

ABSTRACT:
A process for producing hypochlorous acid by reacting an aqueous solution of an alkali metal hydroxide in droplet form with gaseous chlorine to produce hypochlorous acid vapor and solid alkali metal chloride particles in which the improvement comprises employing molar ratios of gaseous chlorine to the alkali metal hydroxide of at least about 22:1.
The process achieves high yields of hypochlorous acid by minimizing side reactions including the formation of chlorate as an impurity in the alkali metal chloride particles produced.
The hypochlorous acid solution produced contains from about 35 to about 60 percent by weight of HOCl, a dissolved chlorine concentration of less than about 2 percent by weight, and is substantially free of alkali metal ions and chloride ions.

REFERENCES:
patent: 1403993 (1922-01-01), Wallace et al.
patent: 1748897 (1930-02-01), Oppe
patent: 3914397 (1975-10-01), Mueller
patent: 4146578 (1979-03-01), Brennan et al.
patent: 4147761 (1979-04-01), Wojtowicz et al.

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