Melting behavior of sulfur-bearing silicate–phosphate glass batches

Abstract The main purpose of the research was to explain differences between nominal and actual chemical compositions silicate-phosphate glasses in SiO 2 -P O 5 -K O-MgO-SO 3 system. materials were determined with X-ray fluorescence (XRF) analyses. Changes composition explained by examining melting processes for selected glass batches differential scanning calorimetry-thermogravimetry-related gas analysis mass spectrometry (DSC-TG-EGA (MS)) high-temperature diffraction (HT-XRD). It found that changes sulfur-bearing associated release gaseous products. gases released during thermal decomposition batch water vapor, carbon dioxide, monoxide, ammonia. Since these have potential use as glassy fertilizers, there is no doubt present study important from an environmental point view.