CORRELATIONS OF WATER-CONTENT AND THERMAL-STABILITY WITH EQUALIZED ELECTRONEGATIVITY AND CHEMICAL HARDNESS OF ZEOLITES

被引：5

作者：

DUTT, NVK ^{[1
]}

KULKARNI, SJ ^{[1
]}

RAVIKUMAR, YVL ^{[1
]}

机构：

[1] INDIAN INST CHEM TECHNOL,RES GRP,HYDERABAD 500007,ANDHRA PRADESH,INDIA

来源：

ZEOLITES | 1995年 / 15卷 / 04期

关键词：

ZEOLITES; EQUALIZED ELECTRONEGATIVITY; CHEMICAL HARDNESS; WATER CONTENT; THERMAL STABILITY;

D O I：

10.1016/0144-2449(94)00060-6

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：

Hydrophilicity (defined as the water content) of 43 zeolites is estimated with an accuracy of 15.2% using the aluminum fraction (X(1)) and the void fraction (X(2)) as the inputs. The water content due to the aluminum fraction (0.1213 chi(1)) derived from the equation is then correlated by means of the equalized electronegativity (chi(eq)) of 57 zeolites with an overall deviation of 7.1%. The charges on framework aluminum and oxygen derived from the equalized electronegativity method for various zeolites are correlated to the aluminum fraction. An attempt has been made, for the first time, to correlate the equalized chemical hardness of zeolites with the aluminum fraction. The thermal stability of various zeolites has been estimated from the equalized chemical hardness, framework density,and void fraction.

引用

页码：373 / 376

页数：4

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