Phenol hydroxylation using Fe/Al-MCM-41 catalysts

被引：36

作者：

Preethi, M. Esther Leena ^{[1
]}

Revathi, S. ^{[1
]}

Sivakumar, T. ^{[1
]}

Manikandan, D. ^{[1
]}

Divakar, D. ^{[1
]}

Rupa, A. Valentine ^{[1
]}

Palanichami, M. ^{[2
]}

机构：

[1] Anna Univ, AC Coll Technol, Dept Chem Engn, Catalyse Lab, Madras 600025, Tamil Nadu, India

[2] Anna Univ, Dept Chem, Coll Engn, Madras 600025, Tamil Nadu, India

来源：

CATALYSIS LETTERS | 2008年 / 120卷 / 1-2期

关键词：

phenol; hydrogen peroxide; hydroxylation; MCM-41; iron;

D O I：

10.1007/s10562-007-9249-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fe loaded Al-MCM-41, (Si/Al = 25, 50, 75 and 100) catalysts were synthesized by hydrothermal method and characterized by the XRD, BET (surface area), FT-IR, and UV- vis and Mossbauer techniques. The liquid phase hydroxylation of phenol with hydrogen peroxide was studied and exclusive formation of dihydroxybenzene was observed. The phenol conversion was found to be almost same at various reaction temperatures viz 40, 60 and 80 degrees C, but at room temperature only about 30% conversion was recorded. The activity followed the order Fe/Al-MCM-41 (25) > Fe/Al-MCM-41(50) > Fe/Al-MCM-41 (75) > Fe/Al-MCM-41 (100) which was also the order of acidity. Effects of Fe content in Fe/Al-MCM-41 catalysts, solvent, phenol/H2O2 mole ratio on phenol conversion was examined. The reaction was also carried out over 10% iron loaded mordenite and the results are compared.

引用

页码：56 / 64

页数：9

共 36 条

[1] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].