Síntesis de monetita pura por reacción heterogénea ácido-base.

Five variations of the monetite (M) synthesis were evaluated modifying the stirring, the phosphoric acid addition rate, the homogeneity and the drying temperature. Products were assessed by means o f XRD, FTIR, SEM-EDS analysis and chemical assay o f Ca/P (calcium by titration with potassium permanganate and phosphorus by colorimetric assessment o f the molybdenum blue complex). X-ray diffraction, infrared spectroscopy and Ca/P ratio indicate that the synthesized phosphate corresponds to pure monetite. It was found that the most influential factors affecting grain composition, crystal size, shape and structure as well as Ca/P molar ratio of synthesized phosphates were stoichiometry and ballmilling mechanoactivation. [ABSTRACT FROM AUTHOR]