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EXTRACTION OF PHENOL FROM WASTEWATER

机译:从废水中提取苯酚。

摘要

A method is provided herein for the extraction of phenol from a waste waterstream. The method is used in conjunction with a process for producing acetoneand phenol from cumene. The method for extracting phenol from waste waterincludes contacting in a countercurrent mode a phenol-containing waste waterstream with a hydrocarbon stream derived from a bottoms stream from theacetone finishing column to produce a dephenolated waste water stream and aphenol-containing hydrocarbon stream. The phenol-containing hydrocarbon streamis preferably washed with an aqueous caustic solution to provide a hydrocarbonstream, which is then conveyed to the alpha-methylstyrene recovery system.Preferably the hydrocarbon stream derived from the bottoms stream of theacetone finishing column is water washed prior to contacting .the phenol-containing waste water stream.
机译:本文提供了一种从废水中提取苯酚的方法流。该方法与生产丙酮的方法结合使用和异丙苯中的苯酚。从废水中提取苯酚的方法包括以逆流方式接触含酚废水含烃物流的塔底物流丙酮精馏塔产生脱酚废水流和含酚的烃物流。含酚的烃流优选用苛性碱水溶液洗涤以提供烃物流,然后将其输送到α-甲基苯乙烯回收系统。优选地,源自于塔底物流的烃物流。丙酮精制塔在接触之前先水洗。包含废水流。

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