| http://www.w3.org/ns/prov#value | - The support material of the catalyst used in this process is characterized by a BET surface area range of 70 to 280 m2/g and a mean pore diameter dp of 1 to 32 nm; the penetration depth of the ruthenium is at least 50 ??m, in particular 100 to 300 ??m; and the ruthenium content is specified as 0.1 to 5 wt. %, in particular 0.5 to 3 wt. %.
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