Fe(III), Cu(II), V(V)/TiO2 for Hydroxylation of Benzene to Phenol with Hydrogen Peroxide at Room Temperature

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Suttichai Assabumrungrat³  Garun Tanarungsun³  Hiroshi Yamada¹  Piyasan Praserthdam³  Tomohiko Tagawa¹  Worapon Kiatkittipong² 

[1] Department of Chemical Engineering, Nagoya University;Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University;Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University

关键词: Hydroxylation;    Benzene;    Hydrogen Peroxide;    Phenol;    TiO2;   

DOI  :  10.1252/jcej.40.415

来源: Maruzen Company Ltd

【 摘 要 】

References(27)Cited-By(10)The hydroxylation of benzene to phenol with hydrogen peroxide catalyzed by transition metal (Fe(III), Cu(II), and V(V)) on a TiO2 support was performed at room temperature. The Fe(III) catalyst gave the highest conversion and yield but showed the lowest selectivity. At room temperature, the phenol yield was quite low and therefore modifying the system by solvent addition or operation under UV light was examined. Among the various solvents studied, i.e., acetone, acetronitrile and pyridine, acetone gave the highest conversion and yield; however, the selectivity was low. Acetonitrile is a suitable solvent in terms of improved selectivity and yield. Operation under UV light significantly improved the yield with comparatively high selectivity. Ascorbic acid, as a reducing agent, was able to improve the phenol yield. In some solvent systems, an optimum amount of ascorbic acid was observed.

【 授权许可】

Unknown