Production and Characterisation of Zeolite from Ahako Clay in Kogi State, Nigeria
Journal Title: Leonardo Electronic Journal of Practices and Technologies - Year 2005, Vol 4, Issue 7
Abstract
Zeolite, a multi-purpose material normally sourced from clay is usually for many Engineering applications. However, it is only those Zeolite that are technically well prepared that can give optimum performance during application. Obtaining a constant route for development of Zeolite in Nigeria will be a welcome development. In this study, therefore, emphasis was placed on the development of various type of Zeolite. In attempt to synthesize the Zeolite samples, 1kg of Ahako clay was beneficiated by soaking it in deionised water for four days during which the mixture was vigorously agitated. Subsequently, the mixture was sieved with a minus 60 mesh (Tyler fraction or Micro sphere) of which the screened mixture was treated with 1 litre of sodium bicarbonate solution and sodium hexameta-phosphate in the ratio of 1:4 primarily for deflocculation or dispersion. The washed clay was dried in an oven set at 45oc for two days after which it was ground to fine powder.The beneficiated clay was calcined at 600°C in furnace (model 6H-85IR) for two hours. Subsequently, the calcined clay was formulated into various samples by properly incorporation sodium hydroxide (Noah), Silica gel and deionised water or weight basis.The results of the XRF showed that the crude and treated clay (calcined clay) contained 73.18% by weight of Sio2 and 14.5% by weight of Al2O3 and 73.20% by weight of SiO2, 7.48 by weight of Al2O3.The developed Zeolite sample should feature in their spectra (IR) that are consistent with Zeolite D as obtained in sample 1 (freshly prepared), Zeolite N-A as obtained in sample II cum sample IV after aging time of 48hours and Zeolite A as obtained in sample III.
Authors and Affiliations
A. KOVO, M. EDOGA
Keywords
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