Sec-butyl alcohol and sec-butyl acetate are important chemical materials. The mixture of sec-butyl alcohol and sec-butyl acetate is produced during the ester exchange reaction of sec-butyl acetate and alcohols. The binary mixture forms a pseudo-azeotrope at nomal atmosphere when the content of sec-butyl alcohol is more than 85%(wt), which is difficult to be separated by common distillation. Extractive distillation is an effective method of separating the mixture. So far there are few reports about the separ...
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