Preparation and Development of Porous Ceramic Membrane Supports Fabricated by Extrusion Technique

Abstract

Ceramic membranes have been widely used in petroleum-chemical industry, food industry and pharmaceutical industry due to several characteristics such as high thermal and chemical stability, high filter precision, chemical resistance, and mechanical strength. Porous ceramic membrane supports are the essential part of ceramic membranes. A survey of the main preparation techniques of porous ceramic membrane supports and their characteristics was introduced in this paper. Emphasis was placed on the mechanism of the response of the support structure and performance to various technical parameters in the extrusion forming process, such as extrusion process, raw materials, additives, and sintering. In addition, the present technical issues to address and the development trends of porous ceramic membrane supports were also proposed herein.