Recovery of propylene glycol mono t-butoxy ether

摘要

1-t-butoxy-2-propanol is recovered in a high state of purity from a crude etherification reaction product obtained by reaction of isobutylene with propylene glycol by distilling said reaction product to obtain a 1-t-butoxy-2-propanol-containing distillate, thereby leaving propylene glycol as bottoms and then further distilling the distillate to separate 1-t-butoxy-2-propanol as an overhead product from higher boiling materials.