Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5440403 | Journal of the European Ceramic Society | 2017 | 7 Pages |
Abstract
A new type of porous ceramic supports for membranes has been designed. The new supports have been fabricated from polycrystalline quartz sand and calcite raw materials. In this work, two configurations of support (tubular and flat) have been produced using extrusion method. The open porosity, the pore size distribution, the average pore size (APS), the strength and the permeability of sintered supports have been found to depend mainly on the weight ratio of calcite (CaCO3) additive. The results showed that with the addition of 15-35 wt.% of calcite and sintering temperature of about 1375 °C for 1 h the best characteristics of sintered supports could be obtained. The developed tubular ceramic supports with the APS 6.3-12 μm, open porosity 42-55%, the water permeability (16-68 m3/h m2 bar) and flexural strength 8-18 MPa hopefully offer many perspectives for a wide use in membranes technology.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Nabila Kouras, Abdelhamid Harabi, Ferhat Bouzerara, Lazhar Foughali, Alfonso Policicchio, Sara Stelitano, Francesco Galiano, Alberto Figoli,