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Influence of hydrocyclone beneficiated clay blend on technological properties and colour indices of vitreous porcelain the body

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Influence of hydrocyclone beneficiated clay blend on technological properties and colour indices of vitreous porcelain the body
 
Creator Maiti, K.N.
Agrawal, P
 
Subject Structural Clay Products
 
Description The possibility of utilizing Indian clays in vitreous porcelain the production with a view to replace imported Ukrainian clays in the composition was assessed. A "Beneficiated Clay Blend" (BCB) was prepared by blending of selected five different Indian clays. The crude blend was beneficiated through two different integrated techniques utilizing levigation and hydrocyclone classification. The prepared BCBs were characterized and incorporated singularly (35 wt%.) in a standard vitreous porcelain tile composition. Their effect on technological properties with emphasis on colour indices were studied. Hydrocyclone classification of clays resulted in kaolinite enrichment at the expense of free silica and other impurities. The vitrification parameters of hydrocyclone beneficiated BCB containing bodies conformed to WA. % <= 0.08, B. D. >= 2.2 g. cm(-3), fired MOR >= 4 7 Mpa, as per IS 15 622 : 2006 specification for pressed ceramic tiles with water absorption E <= 0.08%. The unfired and fired modulus of rupture and CIE whiteness were found superior to that of Ukrainian clay (20-25 wt%) containing bodies. The research established the possibility of replacement of Ukrainian clays by Indian clays in production of vitreous porcelain tiles through beneficiation. ISSN: 1121-7588
 
Date 2008-12
 
Type Article
PeerReviewed
 
Format application/msword
 
Identifier http://cgcri.csircentral.net/21/1/Bg123.doc
Maiti, K.N. and Agrawal, P (2008) Influence of hydrocyclone beneficiated clay blend on technological properties and colour indices of vitreous porcelain the body. INDUSTRIAL CERAMICS Volume: 28 Issue: 3 Pages: 195-204 Published: DEC 2008, 28 (3). pp. 195-204. ISSN 1121-7588
 
Relation http://cgcri.csircentral.net/21/