A procedure for the separation of methyl ether of diacetone-alcohol from diacetone-alcohol (Machine-translation by Google Translate, not legally binding)

摘要

A process for the separation of diacetone-alcohol methyl ether from diacetone-alcohol, comprising the following steps: 1) distilling in a fractionation zone a mixture comprising diacetone-alcohol, diacetone methyl alcohol-alcohol, mesityl oxide and water, thereby separating a distillate comprising water, mesityl oxide and diacetone-alcohol methyl ether, and leaving a tailing product comprising diacetone-alcohol substantially free of diacetone-alcohol methyl ether, 2) cooling said distillate to form an aqueous phase comprising mainly water, and an organic phase comprising mainly mesityl oxide and diacetone-alcohol methyl ether, 3) separating the organic phase from the aqueous phase, 4) returning said aqueous phase to the fractionation zone from step 1. (Machine-translation by Google Translate, not legally binding)