Phase equilibrium principles in the corrosion of acid refractories

GT V01 1960 017-024

The methods used for determining liquid contents and solubilities in binary and ternary systems are described in detail by reference to the SiO₂-Al₂O₃, CaO- Al₂O₃-SiO₂ and Na₂O-Al₂O₃-SiO₂ systems. The solubility data are used to assess the comparative resistances to glass of ,fused tank blocks. Having shown that a combination of liquid content and viscosity data from the Ca0-AIz03-Si02 system can be used to predict the factors affecting the life of steelworks ladle bricks, the effect of composition on porous tank block life is similarly studied by means of the Na₂O-Al₂O₃-SiO₂ system. The desirability of considering highly siliceous compositions is stressed.

W. F. Ford