TITANIUM SILICALITES

被引：355

作者：

NOTARI, B

机构：

来源：

CATALYSIS TODAY | 1993年 / 18卷 / 02期

关键词：

D O I：

10.1016/0920-5861(93)85029-Y

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Recent results on synthesis and characterization of Titanium Silicalites (TS) are reviewed. The active centers where selective oxidations with H2O2 proceed are identified in isolated Ti(IV) substituting Si(IV) in framework positions: these react with H2O2 and form titanium peroxocompounds. A TiO2 phase can be present under certain conditions and cause nonselective H2O2 decomposition, thus lowering the yields. Mechanisms through which the transfer of oxygen from the peroxo compounds to the substrate takes place are discussed. Information is given on industrial applications and on possible future developments.

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页码：163 / 172

页数：10

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