Use of eggshell as an alternative source of calcium to obtain calcium titanate (CaTiO3)

ABSTRACT We describe the study of the re-utilization of egg shell as an alternative mineral source of calcite in the synthesis of calcium titanate (CaTiO3). The raw materials were characterized by X-ray diffraction and X-ray fluorescence; compositions were formulated and sintered under different conditions. After sintering the crystalline phases formed were quantified by the Rietvield (MR) method, analyzes of apparent density (DA), impedance spectroscopy (EIA) and scanning electron microscopy (SEM) were performed. The results reveal the possibility of using the egg shell residue as a source of calcium for the formation of calcium titanate with perovskite structure, it is fundamental to consider studies of technical and economic viability are also developed so that possible applications of interest are feasible.