Aqueous phenol oxidation catalysed by molybdenum and tungsten carbonyl complexes

作者：Wang Zhe; Kee Choon Wee; Li Shenyu; Hor T S Andy; Zhao Jin^*

来源：Applied Catalysis A: General , 2011, 393(1-2): 269-274.

DOI：10.1016/j.apcata.2010.12.003

• Molybdenum
• Tungsten
• Phenol
• Oxidation
• Carbonyl
• Wastewater

The catalytic activities of the complexes, Cp'M(CO)(3)X (Cp'=Cp (eta(5)-C(5)H(5)), Cp* (eta(5)-C(5)Me(5)); M = Mo, W; X=Cl, CH(3)) and Mo(CO)(6) have been examined for the oxidation of phenol (37.6 g/L) using H(2)O(2) as oxidant in aqueous solution. Among them, CpMo(CO)(3)Cl and CpMo(CO)(3)(CH(3)) showed the highest catalytic activity. Conversion of phenol at 55 degrees C is more than 80% after 24 h when water is used as solvent and the ratio of catalyst:phenol:H(2)O(2) is 1:50:200. The main oxidation products observed in solution are oxalic acid and catechol, together with trace amount of p-benzoquinone and maleic acid. Under similar conditions, binary Mo(CO)(6) catalyses phenol oxidation giving hydroquinone and p-benzoquinone as main products.

• 出版日期2011-2-15