| 简介 |
The invention relates to a catalyst for the catalytic oxidation of hydrogen chloride having oxygen to chlorine comprising ruthenium on a carrier, characterized in that the catalyst comprises 0.01 to 10 wt % silver and/or calcium as doping. The carrier is preferably made substantially of alpha-aluminum oxide. The catalyst preferably comprises a) 0.1 to 10 wt % ruthenium, b) 0.01 to 5 wt % silver and/or 0.01 to 5 wt % calcium, c) 0 to 5 wt % of one or more alkaline earth metals, d) 0 to 5 wt % of one or more alkaline metals, e) 0 to 5 wt % of one or more rare earth metals, f) 0 to 5 wt % of one or more additional metals selected from the group comprising nickel, palladium, platinum, iridium and rhenium, each relative to the total weight of the catalyst. |
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