Physico-chemical characterization of acid-activated clay: Its industrial application in the clarification of vegetable oils
Authors:
- 1 April 2009
- journal article
- Published by Allerton Press in Surface Engineering and Applied Electrochemistry
- Vol. 45 (2) , 140-144
Abstract
The physico-chemical characterization of Tunisian bentonitic clays is based on the determination of the mineralogical composition (X-ray diffractions and infrared spectroscopy), chemical analysis, cation exchange capacities and the total surface area. The result given by these techniques show that these samples were smectic clay of beidellitic character. In the other hand, the activation of these clays by hydrochloric acid shows an increase of the specific surface area and favorite the clarification of vegetable oils.Keywords
This publication has 7 references indexed in Scilit:
- Removal of basic dye from water onto pristine and HCl-activated montmorillonite in fixed bedsDesalination, 2006
- Determination of structural modification in acid activated montmorillonite clay by FT-IR spectroscopySpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2006
- Chemical Activation of a Kaolinite under Acid and Alkaline ConditionsChemistry of Materials, 2002
- CEC of clays: Measurement by adsorption of a copper ethylenediamine complexApplied Clay Science, 1997
- Surface properties of an activated bentonite — Decolorisation of rape-seed oilsApplied Clay Science, 1989
- The Infrared Spectra of Minerals1974
- Methylene Blue Absorption by Clay Minerals. Determination of Surface Areas and Cation Exchange Capacities (Clay-Organic Studies XVIII)Clays and Clay Minerals, 1970