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A route to the synthesis of aluminium sulphate from local raw materials

Authors:

J. M. S. Jayatileke ,

Ceylon Institute of Scientific and Industrial Research, (CISIR), P.O. Box 787, Colombo 7, LK
About J. M. S.

Minerals Technology Section

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M. G. M. U. Ismail

Ceylon Institute of Scientific and Industrial Research, (CISIR), P.O. Box 787, Colombo 7, LK
About M. G. M. U.
Minerals Technology Section
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Abstract

The annual requirement of aluminium sulphate in Sri Lanka is about 15,000 metric tons and this is totally imported. Since bauxite is not available in Sri Lanka, Dediyawela ball clay containing about 36% Al2O3 and lateritic clays containing about 20% Al2O3, were used as sources of alumina for the synthesis of aluminium sulphate. Treatment of calcined ball clay with H2SO4 results in the formation of aluminium sulphate. The recyclic process of treatment reduced the free acid content in the product. By recrystallisation the excess iron was removed.

How to Cite: Jayatileke, J.M.S. and Ismail, M.G.M.U., 1983. A route to the synthesis of aluminium sulphate from local raw materials. Journal of the National Science Foundation of Sri Lanka, 11(2), pp.333–347. DOI: http://doi.org/10.4038/jnsfsr.v11i2.8394
Published on 30 Jun 1983.
Peer Reviewed

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