doi:10.1016/j.micromeso.2021.110946engAysa-Martínez, Y.Anoro-López, S.Cano, M.Julve, D.Pérez, J.Coronas, J.Synthesis of amorphous magnesium silicates with different SiO2:MgO molar ratios at laboratory and pilot plant scalesART-2021-123981In this study, amorphous magnesium silicates with different SiO2:MgO molar ratios were synthesized by a precipitation reaction from magnesium sulfate (MgSO4), sodium silicate (Na2SiO3) and water. At laboratory scale, it was studied the effect of the SiO2:Na2O molar ratio of the Na2SiO3 solution used as a reagent on the properties of the amorphous magnesium silicates obtained. It was observed that this ratio is a key parameter in the synthesis process of these materials. The chemical composition and principal physicochemical properties were established, including textural properties from nitrogen adsorption/desorption isotherms and X-ray fluorescence. Moreover, some laboratory tests were scaled-up in an industrial pilot plant (ca. 103 times larger, i.e. 700 kg of wet product) demonstrating the high scalability of the materials obtained. The properties of the scaled-up materials were compared to those of different commercial materials containing magnesium silicate, such as Florisil® and Magnesia 430®. Analogous properties were achieved in terms of particle size distribution, humidity and pH and conductivity in solution.2021http://zaguan.unizar.es/record/15097910.1016/j.micromeso.2021.110946http://zaguan.unizar.es/record/150979oai:zaguan.unizar.es:150979MICROPOROUS AND MESOPOROUS MATERIALS 317 (2021), 110946 [8 pp.]byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess