The preparation of micro-porous membrane from a Tunisian kaolin

被引：42

作者：

Hedfi, I. ^{[1
]}

Hamdi, N. ^{[1
]}

Srasra, E. ^{[1
]}

Rodriguez, M. A. ^{[2
]}

机构：

[1] Ctr Natl Rech Sci Mat, Tunis, Tunisia

[2] CSIC, Inst Ceram & Vidrio, Madrid 2849, Spain

来源：

APPLIED CLAY SCIENCE | 2014年 / 101卷

关键词：

Kaolin; Clay; Membrane; Permeability; DEPOSIT;

D O I：

10.1016/j.clay.2014.09.021

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 purpose of this work is the preparation of a low cost membrane from Tunisian kaolin in order to be used in a filtration process. This study has begun with the characterization of the raw material in order to choose the best condition of the membrane preparation. After the clay characterization, it has been pressed and sintered at 950 C for 2 h to obtain the flat ceramic membranes of 25 mm in diameter. Different characterizations were performed to determine the porosity, the density and the mechanical strength of these membranes; samples show good porosity (similar to 30%), high compressive strength, around 60 MPa, but relatively low permeability. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：574 / 578

页数：5

共 21 条

[11] Porous alumina as a support for catalysts and membranes. Preparation and study [J].