| Evaluation, Beneficiation and Utilization of
Some Plastic Clays of India |
s. N. GHOSH AND s. K. GUHA
Pages : 26-30
DOI : 10.1080/0371750X.1981.10822514 |
| Abstract |
| Nine plastic clays collected from different parts of India were studied
for their suitability for use as substitutes for ball clays in ceramic
industry along with a few well reputed foreign ball clays with special
reference to their occurrence, ceramic properties, beneficiation and
utilization. From the present studies it bas been revealed that Padappakara
and Kumbalam clays from Kerala having excellent plastic and
fired properties can be used as good substitutes for quality ceramic
products. Bilaspur, although not as good as Kerala clays but fired
colour being lighter, may also be used in manufacturing whitewares.
Tbree Rajasthan clays, found to have satisfactory plastic and dry properties
but fired colour being deeper, are suggested for use in products
where fired colour is not of much relevance. Fired colour of Punyakshetram
being darker it could be recommended for use only in
stoneware type crockeries with opaque glaze. Than and Rajbara, now
widely used, suffered from inferior plastic and other properties. However,
considerable improvement in the quality of these two clays could
be effected by proper beneficiation. Beneficiated clay fractions were
comparable with a well known ball clay from UK. |
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