CROSS-FLOW MICROFILTRATION OF KAOLINITE-IN-WATER DISPERSIONS

被引：10

作者：

VASSILIEFF, CS

MOMTCHILOVA, IG

KRUSTEV, RA

机构：

[1] Department of Physical Chemistry, Faculty of Chemistry, University of Sofia, 1126 Sofia

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1994年 / 92卷 / 03期

关键词：

KAOLINITE-IN-WATER DISPERSIONS; MICROFILTRATION;

D O I：

10.1016/0927-7757(94)02953-9

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：

The convective model of cross-flow microfiltration of suspensions with non-Newtonian viscosity (see E.F. Leonard and C.S. Vassilieff, Chem. Eng. Commun., 30 (1984) 209) predicts different qualitative behaviour depending on the mode of operation (i.e. constant inlet feed or constant inlet pressure). Experiments aimed at testing this prediction are performed with stable kaolinite-in-water dispersions (pH 10) in a small laboratory microfiltration set-up. The observed filtration behaviour follows the pattern predicted by the convective model. The shear-enhanced diffusion model fails to rationalize the experimental observations.

引用

页码：231 / 247

页数：17

共 35 条

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