Di-, tri- and tetra-valent ion-exchanged NaY zeolite: Active heterogeneous catalysts for hydroxylation of benzene and phenol

被引：44

作者：

Abbo, Hanna S. ^{[1
]}

Titinchi, Salam J. J. ^{[1
,2
]}

机构：

[1] Univ Western Cape, S African Inst Adv Mat Chem, ZA-7535 Bellville, South Africa

[2] Univ Western Cape, Dept Chem, ZA-7535 Bellville, South Africa

来源：

APPLIED CATALYSIS A-GENERAL | 2009年 / 356卷 / 02期

关键词：

Ion-exchanged zeolite; Hydroxylation; Phenol; Benzene; LIQUID-PHASE HYDROXYLATION; SCHIFF-BASE COMPLEXES; HYDROGEN-PEROXIDE; TITANIUM SILICATE; ROOM-TEMPERATURE; MOLECULAR-SIEVE; OXIDATION; FE(III); TS-1; OPTIMIZATION;

D O I：

10.1016/j.apcata.2009.01.003

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：

Ion-exchanged NaY zeolite with various valent cations are tested for hydroxylation of benzene and phenol with H2O2 in 1:1 and 3:1 molar ratios, respectively; the highest conversion of benzene (33%) in green one-step process is achieved using Cu-NaY with 100% selectivity to phenol, while OV-NaY shows > 36% phenol conversion with 91% selectivity to catechol, whereas TOF exceeds 1000 with Zn-NaY after 6 h reaction time which is among the highest value reported so far. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：167 / 171

页数：5

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