The Effect of Chelate Compounds on the Hydration Process of MgO–Al2O3 Phase System under Hydrothermal Conditions

In refractory castables during heat treatment, there is a dynamic change from hydraulic bond to ceramic bond. During heating, the emission of water takes place; this changes conditions inside material something similar hydrothermal ones. This influences processes that occur heating castables, and in consequence, properties final material. The aim work was evaluate influence chelate compounds like citric tartaric acids, often used as dispersing agents, on MgO–Al2O3 phase system treatment. performed tests included an XRD analysis, thermal analysis (TG–DSC–EGA), infrared spectroscopy (FTIR), SEM–EDS analysis. Based obtained results, it found even small amounts have strong impact under which results composition materials.