F-19 AND AL-27 MAS NMR-STUDY OF THE DEHYDROFLUORINATION REACTION OF HYDROFLUOROCARBON-134 OVER BASIC FAUJASITE ZEOLITES

被引：31

作者：

GREY, CP ^{[1
]}

CORBIN, DR ^{[1
]}

机构：

[1] DUPONT CO INC,CENT RES & DEV,WILMINGTON,DE 19880

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 46期

关键词：

D O I：

10.1021/j100046a005

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：

Dehydrofluorination of hydrofluorocarbon-134 (CF2HCF2H) occurs over the basic zeolite NaX at 275 degrees C, to produce HFC-1123 (CF2CFH) and tetrahedrally-coordinated aluminum fluoride species. Under moist conditions, the tetrahedral aluminum fluoride species are hydrolyzed and six-coordinate species are formed. The framework of the less basic zeolite NaY is not attacked by HFC-134 under similar conditions.

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页码：16821 / 16823

页数：3

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