%0 Journal Article %T Preparation of tetraethoxysilane to obtain spherical silica particles. Part 1. Ultrafiltration %A Kamashev, D.V. %K monodisperse spherical silica particles, supramolecular structures, ultrafiltration %J Vestnik of geosciences %D 2022 %N 0 %P 9 %I FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"