| 摘要 |
PURPOSE: Method for preparing phenol from benzene by direct oxidation that uses iron (III) chloride hexahydrate as a catalyst and hydrogen peroxide as a hydroxy radical donor is provided. CONSTITUTION: A phenol is produced by reacting the benzene, 30-50 % of a hydrogen peroxide, 1-100 mol% (based on the benzene) of Fe(III) compound as a main catalyst such as iron(+3)chloride hexahydrate, iron(+3)acetylacetonate, iron(+3)oxalate dihydrate and etc., 1-100 wt% (based on the catalyst) of a promoter such as CuCl2, Cu(+2)acetate, Co(+2)sulfate and etc. in a mixed solvent comprising sulfuric acid of 0.05-0.2 N and polar organic solvent such as acetonitrile, alcohol, acetone in a volume ratio of 1:0.5-0.5:1 under nitrogen or oxygen at 20-50°C.
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