| 简介 |
The invention relates to a catalyst for the catalytic oxidation of hydrogen chloride with oxygen into chlorine, containing ruthenium on a carrier, characterized in that the catalyst contains 0.01 to 10 wt % of silver and/or calcium as (a) doping agent(s). The carrier is preferably made substantially of alpha-aluminum oxide. The catalyst preferably contains a) 0.1 to 10 wt % of ruthenium, b) 0.01 to 5 wt % of silver and/or 0.01 to 5 wt % of calcium, c) 0 to 5 wt % of one or more alkaline earth metals, d) 0 to 5 wt % of one or more alkali 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 consisting of nickel, palladium, platinum, iridium, and rhenium, the percentages being relative to the total weight of the catalyst. |
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