Electrical Porcelain Production From Selected Kaolin Deposit in South Western Nigeria Using Slip Casting

The production of Electrical porcelain by slip casting using Ikere-Ekiti Kaolin and clay from South Western Nigeria was the focus of this work. Atomic Absorbtion Spectrometric(AAS) analyses of samples of Ikere-Ekiti Kaolin and clay, Ile-Ife clay and Iwo Kaolin was done. AAS analyses showed Iwo Kaolin and Ile-ife clay having low alumina and high impurity contents making them low refractory. Initial tests confirmed its low refractoriness as Iwo Kaolin could not withstand the bisque firing at 900℃ cracking extensively. Thus Ile-ife clay and Iwo Kaolin were disqualified as candidate materials for electrical porcelain production. Ikere-Ekiti kaolin and clay found to be high in alumina content and having low impurity contents were used in the experimental production. Results showed Ikere –Ekiti kaolin and clay suitable for porcelain production. Values of standard refractory tests fell within standard values for porcelain production.