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The use of metallurgical slag for the synthesis of ceramics is considered as an alternative way to manage this waste. A significant effect on the physic-mechanical characteristics of ceramic materials when metallurgical slags are added is exerted by the heat treatment mode. Aluminosilicates were used as the main raw material metallurgical slags of lead and copper production were used as an additive-regulator of the properties of ceramics. It is shown that the addition of slag leads to an increase in mechanical strength. It was established that the maximum mechanical strength of 73.43 MPa is possessed by a sample obtained from a mixture of zeolite-bentonite-copper slag in the proportions of 50% - 30% - 20%, at a moisture content of 15% after calcination at 1,000 °C. [ABSTRACT FROM AUTHOR]

For ecological catalysis, including the purification of exhaust gases, the most promising are block catalysts. The synthesis of ceramic block catalyst carrier was carried out based on classical methods of powder metallurgy, in which moulding compounds were prepared from the starting materials in the form of powders, which were then extruded with thermal training at each stage. It is proposed to use ceramic block carriers synthesized from a mixture of natural Kazakhstan aluminosilicates and metallurgical slag of lead and copper production for environmental catalysis. The obtained results prove the possibility of extruding new materials for use as ceramic carriers for catalysts from a mixture of natural Kazakhstan's aluminosilicates and metallurgical slag of lead and copper production without additional preliminary chemical treatments. In works of other authors haven't found such combinations of components for the manufacture of catalysts. [ABSTRACT FROM AUTHOR]