<p>A method for purifying a crude acetone raw material containing low molecular weight impurities using two columns is disclosed. The method comprises the steps of feeding the crude acetone raw material into a first column; adding an alkaline reagent and an oxidative agent into the first column to form high molecular weight impurities; removing a top fraction from the first column by distillation to form bottom fraction comprising an acetone mixture comprising high molecular weight impurities; feeding the bottom fraction comprising the acetone mixture obtained to a second rectification column at a charge point on the column; adding an alkaline reagent to the second column above the charge point of the bottom fraction fed; and separating a purified acetone from the high molecular weight impurities and removing the purified acetone as a top fraction by distillation in the second column, wherein the second rectification column is operated at atmospheric pressure.</p>
申请公布号
WO2010077725(A1)
申请公布日期
2010.07.08
申请号
WO2009US67296
申请日期
2009.12.09
申请人
SABIC INNOVATIVE PLASTICS IP B.V.;NELSON, MARK ERIK;SOKOLOV, ANDREY YURIEVICH;KRUPENKO, ILYA YURIEVICH;ARISTOVICH, VALERY YURIEVICH
发明人
NELSON, MARK ERIK;SOKOLOV, ANDREY YURIEVICH;KRUPENKO, ILYA YURIEVICH;ARISTOVICH, VALERY YURIEVICH