We produce briquetted synthetic slag based on a mixture of powdered corundum and other raw materials with a high content of alumina, which is the main active ingredient of the product. Using a suitable combination of synthetic slag with lime and other slag-forming additives, we can produce basic refining slag with a low melting point. The slag is active and fluid, which is exactly what is needed to produce high-quality steel with low sulphur content and low content of undesirable inclusions.
Unlike slag produced by calcium fluoride (metallurgical fluorspar) which becomes viscous after evaporation of the fluoride, the refining slag created by our synthetic slag remains liquid for a long time. Moreover, synthetic slag is an environmentally-friendly alternative to CaF2 which by reacting with SiO2 in the slag creates harmful SiF4 gas compound which has adverse effect on health, environment and durability of refractory linings.