Application of optical basicity to metallurgical slags

A thermogravimetric technique has been employed to obtain accurate measurements of both the kinetics of absorption and desorption and the thermodynamics of both water vapour and carbon dioxide dissolution in liquid CaO-Al;Thermodynamic measurements made in the CaO-Al;The kinetics of water vapour dissolution have been interpreted in terms of mass transfer in the liquid phase. Apparent diffusion coefficients of between 3 ;Measurements of carbon dioxide solubility in the CaO-Al;The kinetics of carbon dioxide dissolution have been interpreted in terms of mass transfer in the liquid phase. The activation energy for carbon dioxide dissolution is 43.6 kcal/mole (182.6 kJ/mole). Apparent diffusion coefficients for the dissolution of carbon dioxide in CaO-Al;The concept of optical basicity and its applicability as a means of correlating the available data on the sulphide capacity of metallurgical slags has been reviewed.