Ceramic glaze coloring by the components of metalcontaining wastes

The aim was to determine the possibility of the metal-containing wastes using as a ceramic glaze pigments. In the article the investigations results of the metal-containing wastes coloring properties for ceramic tiles glazes are presented. The research methods. It was studied the coloring properties of the spent catalysts that are used in ammonia production - for medium and low temperature conversion of carbon monoxide and methane conversion catalyst and deposits of metals carbonates that were obtained from spent electrolytes and waste water. The data of the chemical and phase composition of wastes on the results of X-ray diffraction and differential thermal analysis are presented. The samples of ceramic glazed tiles were produced with the using of the wastes. The wastes was fined and added into the ceramic glaze, glazed coating was covered by spraying on ceramic samples and were heat treatment under conditions that was identical to industrial conditions. The burning temperature was 900-1200 ° C. The color and glazed surface quality are controlled according to current standards. The results. It's found that all tested wastes can create color of ceramic glaze, spent catalysts: medium-temperature conversion of carbon monoxide - brown, spent catalyst of lowtemperature conversion of carbon monoxide - a blue-green, catalyst conversion of methane - gray and gray-brown, cadmium and zincbase carbonate ? white, nickel base carbonate ? gray, mixture of base carbonate - gray-blue. The scientific novelty. The using not of all waste lets you create high-quality surface. The presence in the spent catalyst low conversion of methane monovalent copper oxide leads to boiling of the glaze. Also the base carbonate mixture that contains calcium carbonate, which decomposes at a temperature close to the temperature of firing ceramic tiles and cause excessive gas formation, which also brings to breach of the surface. It's recommended use of these waste after pre-calcining of them at temperatures that will ensure the transformation of compounds in the divalent metal oxides or the formation of spinel structure compounds. The practical significance. The using of metal-containingwastes would create economic and quality pigments for ceramic glazes.