Incorporação de pó de despoeiramento em cerâmica vermelha

Abstract

The dusting removal powder is a solid waste generated by the industry for the production of steel in electric arc furnaces. This waste has a high content of iron and zinc, which enables it to be used as secondary material in the formulation of red ceramics. In this work, ceramic formulations were prepared by adding 10 - 40 wt%. dusting powder, that after pressed were sintered at temperatures 850 - 1000 °C in an electric furnace. It has been found that the incorporation of waste steel powder for the ceramic dedusting provided significant improvements in physical and mechanical characteristics evaluated by testing technology. The best results was the formulation of 30% dusting powder at a temperature of 1000 °C, but it was possible to obtain good properties at temperatures below 1000 ° C as water absorption and mechanical strength, it is possible to use smaller firing temperatures.