Timofeeva, Maria N.Kurchenko, Julia V.Kalashnikova, Galina O.Panchenko, Valentina N.Nikolaev, Anatoliy I.Gil Bravo, Antonio2020-04-142021-10-2520190926-860X10.1016/j.apcata.2019.117240https://academica-e.unavarra.es/handle/2454/36711In this paper we report for the first time the catalytic properties of the titanosilicate AM-4 in the synthesis of 1-methoxy-2-propanol (PGME) from methanol and propylene oxide (PO). PGME is widely used as a pollution-free solvent and intermediate in the synthesis of propylene glycol methyl ether acetate, the herbicide metolachlor and in other industrial applications. We found that the catalytic properties of AM-4 could be adjusted by treatment with 0.0625–0.25 M HNO3. Increasing the concentration of HNO3 led to a decrease in basicity, which played a critical role in the reaction rate and the selectivity towards PGME. The yield of PGME decreased with increased acid concentration. The maximum conversion of PO (88.4%) and the selectivity towards PGME (92.3%) were found to be in the presence of AM-4 at 110 °C and 8 mol/mol MeOH/PO. Our results suggest that titanosilicate AM-4 has great potential for application in basic catalysis.36 p.application/pdfeng© 2019 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0.Layered titanosilicate AM-4Catalytic propertiesBasic propertiesAcid activation1-Methoxy-2-propanolPropylene oxideinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessAcceso abierto / Sarbide irekia