METHOD OF PRODUCING CHLORINE VIA CATALYTIC OXIDATION OF HYDROGEN CHLORIDE Russian patent published in 2011 - IPC C01B7/04 B01J23/22 B01J23/04 B01J21/08 B01J27/55 B01J27/24 

FIELD: chemistry.

SUBSTANCE: catalytic oxidation of hydrogen chloride with molecular oxygen is carried out at 275-450°C in the presence of catalysts in form of vanadates of ammonia, potassium or sodium and potassium sulphate, deposited on silica gel. The silica gel has specific surface area of 80-800 m²/g, pore volume of 0.3-4.5 ml/g, particle size of 0.1-10 mm. Components of the catalyst are in the following ratio, wt % of the total weight of the catalyst: vanadates of ammonia, potassium or sodium 2-20, potassium sulphate 2-35, silica gel - the rest.

EFFECT: high rate of oxidation of hydrogen chloride, retention of high rate of oxidation at low temperature, high conversion of hydrogen chloride into the end product.

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