Properties of chromium (III) oxides involved in the catalytic gas phase fluorination of CF3CH2Cl

被引：23

作者：

Brunet, S

Boussand, B

Martin, D

机构：

[1] Catalyse en Chimie Organique, URA CNRS 350, 86022 Poitiers Cedex

来源：

JOURNAL OF CATALYSIS | 1997年 / 171卷 / 01期

关键词：

D O I：

10.1006/jcat.1997.1806

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：

The fluorination of chromium oxides reduces the chromium species on the surface. A low fluorination by HF does not modify the total amount of reversibly oxidizable chromium sites, but increases the strength of these sites. Mobile dioxygen (measured by isotopic exchange) was required to obtain a good fluorination activity. These dioxygen species would be exchanged by HF which is probably active in the fluorination of CF3CH2Cl and would prevent the irreversibly catalyst fluorination. (C) 1997 Academic Press.

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页码：287 / 292

页数：6

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