OICC Press Iranian Journal of Catalysis 2345-4865 7 2 2024 02 03 Preparation and application of HMCM-22 zeolite as an efficient solid acid catalyst for the synthesis of acetals EN Hosein Hoseini Department of Chemistry, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran. Maryam Gorjizadeh Department of Chemistry, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran. Soheil Sayyahi Department of Chemistry, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran. Amirhossein Shahbazi Kootenaei Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran. Journal Article 2024 02 03 HMCM-22 with a Si:Al molar ratio of 15:1 has been shown to effectively catalyze the synthesis of acetals with 100% selectivity by the reaction of aldehydes with methanol under reflux conditions. Platelet HMCM-22 particles were prepared by the static strategy and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), BET techniques and N2-adsorption/desorption analysis. The catalyst was recovered by simple filtration and reused for several cycles without considerable loss of activity. HMCM-22 with a Si:Al molar ratio of 15:1 has been shown to effectively catalyze the synthesis of acetals by the reaction of aldehydes with methanol under reflux conditions. Platelet HMCM-22 particles were prepared by static method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), BET techniques and N2-adsorption/desorption analysis. The catalyst was recovered by simple filtration and reused for several cycles without considerable loss of activity.