用隔離壁精餾塔萃取精餾制無(wú)水叔丁醇,在溶劑比為1.5,回流比為2∶1,叔丁醇原料進(jìn)料速度為1.7 mL/min時(shí),塔頂叔丁醇的質(zhì)量分?jǐn)?shù)達(dá)到99.6%;塔釜乙二醇的質(zhì)量分?jǐn)?shù)達(dá)到97.7%,可直接作萃取劑循環(huán)利用.用AspenPlus對(duì)該工藝和二塔萃取精餾工藝對(duì)比,結(jié)果與實(shí)驗(yàn)相一致,塔頂叔丁醇質(zhì)量分?jǐn)?shù)的相對(duì)誤差為0.4%,塔釜乙二醇質(zhì)量分?jǐn)?shù)的相對(duì)誤差1.3%.結(jié)果顯示,該工藝比現(xiàn)有工藝省了1個(gè)塔、1個(gè)再沸器和1個(gè)冷凝器,節(jié)能27%,降低了能耗和設(shè)備投資.