Author/Authors :
abdoulaye, o.d.m. institut national polytechnique félix houphouët-boigny de yamoussoukro - de l’environnement et des energies nouvelles (lapisen) - laboratoire des procédés industriels de synthèse, Ivory Coast , yao, b.k. institut national polytechnique félix houphouët-boigny de yamoussoukro - de l’environnement et des energies nouvelles (lapisen) - laboratoire des procédés industriels de synthèse, Ivory Coast , ahmed, a.m. université boubakar bâ de tillabéri, Niger , adouby, k. institut national polytechnique félix houphouët-boigny de yamoussoukro - de l’environnement et des energies nouvelles (lapisen) - laboratoire des procédés industriels de synthèse, Ivory Coast , abro, d.m.k. institut national polytechnique félix houphouët-boigny de yamoussoukro - de l’environnement et des energies nouvelles (lapisen) - laboratoire des procédés industriels de synthèse, Ivory Coast , drogui, p. université du québec - institut national de la recherche scientifique (inrs eau terre et environnement), Québec City, Canada
Abstract :
A clay of the Tahoua region (sedimentary basin of Iullemmeden, Niger) was characterized in order to evaluate its ability to be used as catalysts manufacturing for oil cracking. Analysis of the clay fraction by X-ray diffraction (XRD), infrared (IR) and Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM-EDS) was performed for this purpose. The results showed that this clay is composed of an irregular interlayer mineral composed of three (3) different Smectite/Illite/Chlorite sheets and 46.3% of kaolinite quantified by FITYK software with diffraction intensities correction factors. The pseudo-hexagonal morphology characteristic of kaolinite and illite was also revealed by SEM coupled with EDS. Moreover, Inductively Coupled Plasma – atomic Emission Spectroscopy (ICP-AES) investigations indicated the presence of free quartz in the sample. The specific surface area (SSA) and the Cation-exchange capacity (CEC) was also determined and are respectively 15.26 m2/g and 6.36 meq/100g. The loss on ignition value is 16.1%.
Keywords :
Clay Characterization , X , rays diffraction , EDS , SEM , ICP , AES
