MODIFIED ZEOLITES FOR THE REMOVAL OF CALCIUM AND MAGNESIUM FROM HARD WATER

Citation
R. Levanmao et al., MODIFIED ZEOLITES FOR THE REMOVAL OF CALCIUM AND MAGNESIUM FROM HARD WATER, Journal of materials chemistry, 4(7), 1994, pp. 1143-1147
Citations number
14
Categorie Soggetti
Chemistry Physical","Material Science
ISSN journal
09599428
Volume
4
Issue
7
Year of publication
1994
Pages
1143 - 1147
Database
ISI
SICI code
0959-9428(1994)4:7<1143:MZFTRO>2.0.ZU;2-9
Abstract
The cation-exchange capacity (cec) and the pore size of zeolite materi als are the two key factors which influence the removal of calcium and magnesium in aqueous solution. Na-X and Na-Y zeolites have been modif ied by selective extraction of Si from the zeolite framework using sod ium carbonate. At ambient temperature, the modified Na-X zeolite was m ore efficient than the Na-A commercially used in detergency, for both Ca and Mg ions.