膜科学与技术

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Preparation and characterization of tubular porousα-Al2O3 ceramic membrane support

Authors： TONG Zhi1，ZHU Qing Peng1，LI Da Chuan2 ，CUI Shuang Ke2

Units： 1.College of Environmental and Chemical Engineering, Xi’an

KeyWords： tubular support; rolling-pressing;meltable moulding core

ClassificationCode：TQ174

year,volume(issue):pagination： 2013,33(2):6-11

Abstract：

Polytechnic University, Xi’an 710048，China;2.Shaanxi Modern Architecture Design and Research Institute,Xi’an 710048,China）
Abstract Tubular porousα-Al2O3 ceramic membrane support containing alumina as aggregate, carboxymethylcellulose as pore-fomring agent ,Kaolin and Titanium Dioxide as high temperature binder and sintering additive,was prepared by rolling-pressing and meltable moulding core. The effect of the amount of pore-fomring agent，high temperature binder，sintering additive and sintering temperature on the properties of support was studied in this paper. The results indicate that support with average pore size 1.86μm ，porosity of 36.97%，pure water flux of 2115.55L/m2•h under 0.10Mpa,flexural strength of 19.78Mpa，acid/ alkali resistance of 99.83% and 99.86% is prepared when 3%CMC,10%Kaolin,2%Titanium Dioxide is contained and the sintering temperature is 1300℃，the holding time is 2 hours.

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