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Removal of cyclohexanol from aqueous solutions containing it and aromatic sulfonic acids

机译：从含有环己醇和芳族磺酸的水溶液中去除环己醇

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摘要

Cyclohexanol is removed from aqueous solutions containing it and aromatic sulfonic acids, obtained by hydrating cyclohexene in aqueous solutions of aromatic sulfonic acids at elevated temperatures and subsequent removal of excess cyclohexene, byPP(a) feeding the aqueous solution which contains the cyclohexanol and the aromatic sulfonic acid into the upper third of a first column and from 1 to 50 parts by weight of steam per part by weight of cyclohexanol into the bottom third of the column, withdrawing at the top of the column a vapor which consists essentially of cyclohexanol, cyclohexene and water, and obtaining as a bottom product an aqueous solution of the aromatic sulfonic acid,PP(b) condensing the vapor which consists essentially of cyclohexanol, cyclohexene and water andPP (b1) obtaining a cyclohexanol-rich phase andPP(b2) an aqueous phase,PP(c) utilizing the aqueous phase (b2) for generating the steam required in stage (a) and any remainder for the hydration of cyclohexene, andPP (d) distilling off from the cyclohexanol-rich phase (b1) in a second column a mixture of cyclohexene and water with or without cyclohexanol as top product, leaving cyclohexanol as bottom product.
机译：从（P）

（a）进料含有环己醇和芳族磺酸的水溶液中的环己醇，所述环己醇是通过在升高的温度下在芳族磺酸的水溶液中水合环己烯并随后除去过量的环己烯而获得的。环己醇和芳族磺酸进入第一塔的上部三分之一，每重量份环己醇从1至50重量份的蒸汽进入塔的底部三分之一，在塔的顶部抽出一种蒸汽，该蒸汽由基本上由环己醇，环己烯和水组成，并得到芳族磺酸的水溶液作为塔底产物，（P）（P）冷凝基本上由环己醇，环己烯和水组成的蒸气，并且>（b1）获得富含环己醇的相和

（b2）水相，

（c）利用水相（b2）产生步骤（a）中所需的蒸汽以及任何剩余的水分（d）在第二塔中从富含环己醇的相（b1）中蒸馏出环己烯和水的混合物，其中有或没有环己醇作为顶部产物，剩下环己醇作为底部产物。

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