화학공학소재연구정보센터
Catalysis Today, Vol.257, 80-85, 2015
Hydroxylation of phenol by hydrogen peroxide catalyzed by heteropoly compounds in presence of glycerol as green solvent
Cobalt, manganese, and iron in cationic positions of the secondary structure of Mo- or W-Keggin type heteropolyanions were investigated in the liquid-phase oxidation of phenol in glycerol. Iron tungstophosphate series is the most active in this reaction, yielding catechol and hydroquinone. On the other hand, manganese and cobalt salts of heteropolyacids demonstrate higher catalytic activity in the degradation of phenol to CO2 in comparison with iron tungstophosphates. It is the first time that glycerol is used as alternative "green" solvent in phenol oxidation reaction. (C) 2015 Elsevier B.V. All rights reserved.