膜科学与技术

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Effect of morphology of CaCO3 on separation performance of ceramic membranes

Authors： JIANG Wenye, HU Jian, ZHANG Feng, XING Weihong1

Units： College of Chemistry and Chemical Engineering, Nanjing University of technology, National Engineering Research Center for Special Separation Membrane,Nanjing 210009, Jiangsu, China

KeyWords： CaCO3;Ceramic membrane;Morphology

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2014,34(4):1-5

Abstract：

Ceramic membrane was widely used to separateultrafinepowder suspension. The separation performance was significantlyinfluenced by the properties of particles. The spherical powder, square powder and bundle of rod-like powder of CaCO3 were obtained respectively through controlling the precipitationreaction conditions.The matching relations between pore size of membrane and the properties of particlessuch as size and morphologywere got. The order of the flux of ceramic membrane for separating particlesuspension was:spherical powder> bundle of rod-like powder>square powder. The larger the pore size of ceramic membrane was,the greater influence of morphology of powder on separation performance was. The flux increasedwith the increasing of ratio of particalsize and pore size of ceramic membrane.

Funds：

国家杰出青年基金项目（21125629），国家自然科学基金项目(21076102）；江苏省高校自然科学基金（10KJB530002）。

AuthorIntro：

江文叶，(1987-),女，江苏连云港人，硕士研究生，研究方向为膜分离；邢卫红（联系人），研究员， E-mail：xingwh@njut.edu.cn

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