© Evaluation Of Swat Kaolin Deposits Of Pakistan For Industrial Uses Siddiqui, MA; Ahmed, Z; Saleemi, AA ELSEVIER SCIENCE BV, APPLIED CLAY SCIENCE; pp: 55-72; Vol: 29 King Fahd University of Petroleum & Minerals Summary The Swat kaolin deposits are characterized and evaluated for their potential as industrial raw materials. Their particle size, colour measurement, viscosity, plastic limits, liquid limits, drying, firing shrinkage, water absorption, oil absorption, pH, water soluble matter, moisture and bulk density are tested for <63, <10, <5 and <2 pm size fractions. Due to low plasticity index and high Fe2O3, TiO2 and CaO contents, the 'water-washed' <63-mum fraction of kaolin is unsuitable for ceramic use. The yellowness of this fraction, %, can be reduced by %, by chemical bleaching. The less than or equal to2-mum fraction can be used for high-solids formulation for publication-grade paper and medium-finish lower cost enamels. The <5-mum fraction is useable in paper filling. The <10-mum fraction is suitable for the ceramics, paint, plastic and rubber-filler industries. Published by Elsevier B.V. References: AHMED Z, 1974, GEOL B PANJAB U, V11, P7 AHMED Z, 1975, MIN MAG, V40, P53 AHMED Z, 1978, GEOL B PANJAB U, V15, P25 BAIN JA, 1971, CLAY MINER, V9, P1 BLOODWORTH AJ, 1993, WG931 BR GEOL SURV, V76 BRISTOW CM, 1987, IND MINER, V238, P45 BUNDY WM, 1993, SPECIAL PUBLICATION, V1, P43 CHANDRASEKHAR S, 2002, APPL CLAY SCI, V21, P133 CONLEY RF, 1970, IND ENG CHEM PROC DD, V9, P595 COOPE BM, 1979, KOALIN REV PRODUCTIO, P31 DAWSON AL, 1994, INVESTIGATION VISCOS FARUQI FA, 1967, PAKISTAN J SCI IND R, V10, P58 FARUQI FA, 1970, PAKISTAN J SCI IND R, V12, P466 Copyright: King Fahd University of Petroleum & Minerals;

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