| http://www.w3.org/ns/prov#value | - The catalytic-inert support composite which is in the second reactor and which is used along with oxygen or an oxygen-containing gas such as air to effect the direct oxidation of hydrogen bromide comprises a composite of an oxide of a metal selected from the group consisting of copper and cerium composited on an inert support, the preferred support containing a surface area within the range of fro
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