FIELD: catalyst chemistry. SUBSTANCE: proposed catalyst contains at least one active component and silicium dioxide as a carrier. Said active component is chosen of ferrum oxides, chromium oxides, manganese oxides, cobalt and/or nickel oxides. Specific surface of said catalyst is more 20 m2/g and average radius of its pores is at least 25 
. Said catalyst also has no significant activity in relation to Klausse reaction. EFFECT: improves quality of desired product. 24 cl, 13 tbl
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