Chemical and mineralogical characterization and ceramic suitability of raw feldspathic materials from Dschang (Cameroon)

  • D. Njoya Laboratoire de Physico-chimie des Matériaux Minéraux, Département de Chimie Inorganique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun
  • M. Hajjaji Laboratoire de Physico-chimie des Matériaux et Environnement, Département de Chimie, Faculté des Sciences Semlalia, Université Cadi Ayyad, B.P. 2390, Marrakech, Morocco
  • C. Nkoumbou Département des Sciences de la Terre, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun
  • A. Elimbi Laboratoire de Physico-chimie des Matériaux Minéraux, Département de Chimie Inorganique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun
  • M. Kwekam Département des Sciences de la Terre, Faculté des Sciences, Université de Dschang, B.P. 067, Dschang, Cameroun
  • A. Njoya Département des Sciences de la Terre, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun
  • J. Yvon Laboratoire Environnement et Minéralurgie, Université de Nancy, CNRS, B.P. 40, F-54501 Vandoeuvre–Lès-Nancy, Cédex, France
  • D. Njopwouo Laboratoire de Physico-chimie des Matériaux Minéraux, Département de Chimie Inorganique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun
Keywords: Raw feldspathic materials, Mineralogy, Chemical composition, Ceramic suitability, Cameroon

Abstract

The chemical and mineralogical characterization of raw feldspathic materials from Dschang (Cameroon) was realized by means of X-ray diffraction, differential thermal analyses, optical and scanning electron microscopies, and analytical techniques. It was found that these materials consist of albite (43 ± 3 wt.%), microcline (41 and 26 wt.%), quartz (14.5 ± 1.5 wt.%), plagioclase (oligoclase type) (6 and 12 wt.%) and a minor content of biotite. The amount of fluxing oxides is about 12 wt.% and those of pigments are quasi-null. The ceramic suitability of these materials was assessed in the light of the obtained chemical data and physical characteristics (fusibility, viscosity, colour). The results showed that these raw materials are convenient, as fluxing compounds, for manufacturing white ceramic.


KEY WORDS: Raw feldspathic materials, Mineralogy, Chemical composition, Ceramic suitability, Cameroon

 

 

 

Bull. Chem. Soc. Ethiop. 2010, 24(1), 39-46.

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Articles

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eISSN: 1726-801X
print ISSN: 1011-3924