Sp. Chopade et Mm. Sharma, ACETALIZATION OF ETHYLENE-GLYCOL WITH FORMALDEHYDE USING CATION-EXCHANGE RESINS AS CATALYSTS - BATCH VERSUS REACTIVE DISTILLATION, Reactive & functional polymers, 34(1), 1997, pp. 37-45
1,3-Dioxolane was prepared from ethylene glycol and formaldehyde in th
e presence of a cation-exchange resin. The reaction was studied in bat
ch mode, semi-batch reactive distillation mode and in a continuous rea
ctive distillation column. A pseudohomogeneous model explains the batc
h kinetics. Higher than 98% conversion of formaldehyde was achieved in
semi-batch reactive distillation. Recovery of ethylene glycol from aq
ueous solutions via reaction with solid paraformaldehyde in a semi-bat
ch reactive distillation mode was also studied.