Textural properties of acid activated glauconite

被引：51

作者：

Srasra, E

Trabelsi-Ayedi, M

机构：

[1] Inst Natl Rech Sci & Tech, Lab Procedes Chim, Hammam Lif, Tunisia

[2] Fac Sci Bizerte, Dept Chim, Zarzouna, Bizerte, Tunisia

来源：

APPLIED CLAY SCIENCE | 2000年 / 17卷 / 1-2期

关键词：

glauconite; acid activation; surface area; porosity; bleaching;

D O I：

10.1016/S0169-1317(00)00008-9

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：

Glauconite of Gafsa (Tunisia) was reacted with boiling 3 M HCl solution. The structural and textural changes were studied. The porosity, the specific surface and the microporosity increased with the activation time. The bleaching effect on rapeseed oil was maximum when the glauconite was activated for 4 h. This best performance correlates with the maximum of the external specific surface area S-ext = 109 m(2)/g, and generation of the strong acid sites. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：71 / 84

页数：14

共 21 条

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