Roy, Anandita and Singh, Samarendra K and Banerjee, P C and Dana, Kausik and Das, Swapan Kumar (2010) Bio-beneficiation of kaolin and feldspar and its effect on fired characteristics of triaxial porcelain. Bulletin of Materials Science, 33 (3). pp. 333-338. ISSN 0250-4707

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Presence of iron compounds as impurities in kaolin and feldspar, impart reddish colour to ceramic products manufactured using these minerals. The quality of kaolin and feldspar was enriched mainly through iron removal by biological methods. Bacteria isolated from kaolin of Indian origin were used for bioleaching. Biotreatment of kaolin and feldspar using indigenous bacteria not only lowered the iron content of the minerals but also improved their whiteness. The porcelain prepared with these biobeneficiated minerals was compared to that prepared with non-beneficiated one. Physico-mechanical properties of porcelain were distinctly improved by using biobeneficiated kaolin and feldspar, without affecting the individual mineralogical compositions of kaolin and feldspar.

Item Type: Article
Uncontrolled Keywords: Triaxial porcelain; Kaolin; fFeldspar
Subjects: Structural Clay Products
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Feb 2012 06:46
Last Modified: 08 Feb 2017 09:34

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