| abstract |
oxidation catalystnbased on ruthenium, in particular based on ruthenium chloride,nfor the catalytic gas phase oxidation of hydrogen chloridenwith oxygen (Deacon process), characterized in thatnthe catalyst, based on the proportion of ruthenium, as a promoternup to a molar ratio of 1: 1 (promoter: ruthenium),npreferably from 1:20 to 1: 4 (promoter: ruthenium), halogen compounds selectednfrom the series: zirconium, alkali, especially lithium, sodium,nPotassium and cesium, alkaline earth, in particular magnesium,nManganese, cerium, lanthanum or cesium compounds, preferablynZirconium or cerium compounds. |