Sarkar, Sandeep and Bandyopadhyay, Sibdas and Larbot, Andre and Cerneaux, Sophie (2012) New clay-alumina porous capillary supports for filtration application. Journal of Membrane Science, 392. pp. 130-136. ISSN 0376-7388

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Abstract

Ceramic pastes of different clay-alumina compositions were prepared with required rheological property for extrusion processing. The composition was varied from 0 to 85 weight percent (wt.%) of clay and remaining alumina and mixed with different organic additives which acted as binder, plasticizer, pore former along with water. The paste was then extruded to green capillary tubes with dimensions of 3.5/2.0 mm (OD/ID) through a specifically designed extrusion die. The green capillary tubes were dried at room temperature for 24 h and sintered at three different temperatures of 1200 degrees C, 1300 degrees C and 1450 degrees C, before their characterization by means of porous volume, pore diameters and mechanical resistance. Depending on the initial paste formulation and processing parameters, the capillary tubes showed different physico-chemical properties and structural morphology. The various results related to the capillary tubes were compared to highlight the optimum formulation and process parameters for the preparation of clay-alumina porous capillary tubes that will be used to prepare different membranes for wastewater filtration application. (C) 2011 Elsevier B.V. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Clay-alumina formulation; Ceramic capillary membrane; Microfiltration
Subjects:	Engineering Materials
Divisions:	Ceramic Membrane
Depositing User:	Bidhan Chaudhuri
Date Deposited:	04 Jun 2012 11:00
Last Modified:	30 Jan 2013 12:23
URI:	http://cgcri.csircentral.net/id/eprint/1473

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