Production of high-purity chlorine from hydrogen chloride

Details Production of high-purity chlorine from hydrogen chloride Production of high-purity chlorine from hydrogen chloride

1974-02-13

1976-04-13

Rutledge, L. Dewayne

Chemistry of inorganic compounds

Halogen or compound thereof

Elemental halogen

423502, 423390, C01B 700

Patent

active

039505014

ABSTRACT:
An improvement in the continuous process for oxidizing hydrogen chloride to chlorine with an aqueous mixture of nitric and sulfuric acids, which acids are subsequently regenerated, the improvement concerned primarily with maintaining critical water control of from 23.0 to 27.5 percent, by weight, during the oxidation reaction to form the chlorine and from 27.5 to 30.0 percent during the reaction wherein the nitric and sulfuric acids are regenerated; and with maintaining the mol ratio of HCl to HNO.sub.3 at about 2 to 1 during the oxidation reaction to form the chlorine.

REFERENCES:
patent: 3152870 (1964-11-01), Baumgartner
patent: 3201201 (1965-08-01), VanDijk
patent: 3449079 (1969-06-01), Jongenburger
patent: 3451776 (1969-06-01), VanDijk
patent: 3544274 (1970-12-01), VanDijk
Bretsznajder, et al,; "Otlenianie Nitrozy Tlenem Pod Cisieniem Wyzsym Od Atmosterycznego"; Przemysl Chemiczny, Vol. XII, pp. 674-678; (1956).

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