METHOD FOR HANDLING AN AQUEOUS SOLUTION CONTAINING A WATER-SOLUBLE SUBSTANCE, METHOD FOR MANUFACTURING ALKYLBENZENE HYDROPEROXIDES, AND METHOD FOR MANUFACTURING HYDROXYBENZENES
申请人:Sumitomo Chemical Company, Limited
公开号:EP2468723A1
公开(公告)日:2012-06-27
There is provided a method for handling an aqueous solution containing a water-soluble substance that changes into a water-insoluble substance over time, including a step of bringing the aqueous solution to be treated containing the water-soluble substance that changes into the water-insoluble substance over time into contact with a water-insoluble organic solvent, and extracting the water-soluble substance into the water-insoluble organic solvent. Preferably, the water-soluble substance is alkylbenzene hydroperoxide, and the water-insoluble substance is alkylbenzene hydroperoxide-derived alcohol. Preferably, the aqueous solution to be treated is an alkaline aqueous phase separated in a water-washing step in a process of manufacturing the alkylbenzene hydroperoxide that has an alkali extraction step, the water-washing step, an oxidation step, and a reaction solution separation step.
本发明提供了一种处理含有水溶性物质的水溶液的方法,该水溶液中的水溶性物质会随着时间的推移变为水不溶性物质,该方法包括以下步骤:将含有水溶性物质的待处理水溶液与水不溶性有机溶剂接触,并将水溶性物质萃取到水不溶性有机溶剂中。优选地,水溶性物质为烷基苯过氧化氢,水不溶性物质为烷基苯过氧化氢衍生醇。优选地,待处理的水溶液是在制造烷基苯过氧化氢的过程中,在水洗步骤中分离出来的碱性水相,该过程包括碱提取步骤、水洗步骤、氧化步骤和反应溶液分离步骤。