Preparation and Characterization of Chemically Bonded Phosphate Ceramics (CBPC) for Encapsulation of Harmful Waste
نویسنده
چکیده
A chemically bonded phosphate ceramic material has been prepared for the sake of encapsulating lead battery waste. In this paper the optimum conditions for the preparation of magnesium potassium phosphate compacts are determined and the formation of the final product assessed using XRD. The effect of applied pressure and pressing duration as well as the Mg:K molar ratio on the porosity and permeability of compacts was studied. It was found that a minimum porosity was achieved by using a molar ratio of Mg:K = 1:1 and that a pressing time of 10 minutes is sufficient to reach compacts of reasonably low permeability. Also, the compressive strength of compacts was found to increase linearly with curing time and to be much more affected by pressing time duration than by the magnitude of the applied pressure.
منابع مشابه
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