Method of simultaneously producing chlorine dioxide and a sulfat

Details Method of simultaneously producing chlorine dioxide and a sulfat Method of simultaneously producing chlorine dioxide and a sulfat

1970-09-17

1976-01-20

Thomas, Earl C.

Chemistry of inorganic compounds

Halogen or compound thereof

Chlorine dioxide

423551, 423552, C01B 1102

Patent

active

039339882

ABSTRACT:
A process for the production of chlorine dioxide and a sulfate salt comprising mixing an aqueous solution of a chlorate, sulfuric acid and sulfur dioxide, reacting said mixture under reduced pressure near the boiling point of said solution at a temperature of 50.degree. to about 95.degree. centigrade to generate chlorine dioxide, removing water from the chlorate solution as water vapor with the generated chlorine dioxide, feeding replenishing amounts of aqueous chlorate to said reaction mixture to increase the concentration of the cation of said chlorate so as to have it exceed the saturation point of the sulfate of said cation under said reaction conditions, crystallizing a sulfate salt of said cation from said reaction mixture and recovering said sulfate salt.

REFERENCES:
patent: 2373830 (1945-04-01), Holst
patent: 2598087 (1952-05-01), Wayman et al.
patent: 2811420 (1957-10-01), Pernert
patent: 2863722 (1958-12-01), Rapson
patent: 3347628 (1967-10-01), Sepall et al.
patent: 3563702 (1971-02-01), Partridge et al.

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