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n African Journal of Science, Technology, Innovation and Development - Physical and chemical characteristics of the kaolinitic clay deposit at Ilukuno-Ekiti, southwestern Nigeria : implication for industrial applications

Volume 4, Issue 1
  • ISSN : 2042-1338
  • E-ISSN: 2042-1346
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Abstract

The physical and chemical characteristics of the residual clay deposit at Ilukuno-Ekiti, southwestern Nigeria studied and reported in this paper show that the clay fraction is 32.8% on the average with a range of 28-46% while the silt fraction averages 65.2% with a range from 54% to 70% and the sand fraction 2%. The mineralogical analysis by XRD shows that the clay is predominantly kaolinite (91.3%) with feldspar and quartz constituting impurities. Chemical analyses indicate that the clay has average SiO, AlO and FeO values of 44.63%, 40.38% and 0.26% respectively with pH of 6.7 (6.4-7.2). When compared with other published clays, it is established that it can be used for the manufacture of high-temperature general-purpose porcelain products such as refractories, electrical appliances and kitchen wares.

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/content/aa_ajstid/4/1/EJC123758
2012-01-01
2019-11-16

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