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Characterization by thermal analysis of natural kieselguhr and sandfor industrial application

Auteurs : Hazem Meradia, L’hadi ATOUI, Lynda BAHLOUL, Khaled BOUBENDIRA, Abdelhak Bouazdia, Fadhel Ismail
Année : 2015
Domaine : Métallurgie
Type : Publication
Revue : ScienceDirect, Energy Procedia 00 (2015) 000–000
Résumé en PDF : (résumé en pdf)
Fulltext en PDF : (.pdf)
Mots clés : Kieselguhr, diatomite, sand, thermal analysis, DSC, TGA

Résumé :

Kieselguhr also known diatomite is a silica-based mineral, usually light in color (white if pure). It is very finely porous and verylow in density. It is composed mainly of silica as career sand. The aim of this study was to characterize the kieselguhr and sandfor together use in industry for various applications. Both products come of Sig deposit (West Algeria).The results ofsimultaneous analyses by Thermogravimetric Analysis and Differential Scanning Calorimetry (TGA-DSC) for kieselguhr andsand sample shows almost identical peaks except for the peak which appears at 574° C which corresponds to the transformationof quartz sand that does not appear in the Kieselguhr sample because of its amorphous character and higher exothermic peak at574° C approximately.