| abstract |
The present invention relates to a method for producing chlorine by heat-catalytic gas phase oxidation of hydrogen chloride gas with oxygen in the presence of a catalyst and separating chlorine from a reaction product comprising chlorine, hydrogen chloride, oxygen and water, a) cerium oxide is used as the catalytically active component in the catalyst, b) the reaction gas is converted in the cerium oxide catalyst in at least one isothermal reaction zone, preferably at least one tubular reactor, Wherein the O 2 / HCl-molar ratio is at least 0.75 in any portion of the cerium oxide containing reaction zone. |