Hydration of Ethylene Oxide over Modified Silica Gel

Ethylene glycol (EG) is an important raw material used to produce polyethylene terephthalate for fibers and bottles, and it is also used as a solvent and antifreezer. The demand for EG increases rapidly. EG is mainly synthesized by the liquid-phase hydration of ethylene oxide (EO), and the main by-products are diethylene glycol and triethylene glycol.