Process for producing thiocyanatopropyltriethoxysilane

摘要

PURPOSE: A process for generating thiocyanatoalkyltrialkoxysilanes and preferably thiocyanatopropyltriethoxysilane is provided, which shortens the distillation time. CONSTITUTION: A process for manufacturing thiocyanatoalkyltrialkoxysilane comprises: reacting a mixture of chloroalkyltrialkoxysilane and sodium thiocyanate in an alcohol to form a salt- and alcohol-containing thiocyanatoalkyltrialkoxysilane suspension; centrifugating the suspension to separate salt resulting from the reacting step from an alcohol-containing thiocyanatoalkyltrialkoxysilane centrifugate; washing the salt with alcohol; adding the alcohol from the washing step to the mixture in the reacting step; distilling the centrifugate to remove alcohol and to form a thiocyanatoalkyltrialkoxysilane residue; and removing solids from the thiocyanatoalkyltrialkoxysilane residue to form a thiocyanatoalkyltrialkoxysilane product.