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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 56  1997
Characterization of China Clay Deposits at Mulieh Area in Jaintia Hills, Meghalaya for its Industrial Applications
S.c. BARAL
Pages : 141-146
DOI :10.1080/0371750X.1997.10804815
Abstract
The physico-chemical characteristics of kaolinised rocks occurring at the Northern part of Mulieh village of Jaintia Hills in Meghalaya were studied with a view to finding out their possible industrial applications. The study was conducted on the washed fraction (Grade I) of the clay as obtained by systematic levigation based on the principle of gravity sedimentation. The investigation included characterization of the clay for its suitability in paper, textile, rubber and insecticide industries as per BIS specification. The clay was further evaluated for its application in the field of ceramic whitewares, and this included definite formulation of various types of ceramic products and finding out the thermo-mechanical properties at different temperatures subject to the requirements of the respective products. The results indicated that the clay was quite suitable for direct use in paper, textile, rubber and insecticide industry except as a coating material in paper or textile. Due to offwhite colour of the clay, its use was restricted in making porcelain tablewares and alike; otherwise it suited well in all the other ceramic applications.
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