专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06586638B1 Process for removing and recovering of phenolic compounds from aqueous fluids 失效
标题翻译：从含水流体中除去和回收酚类化合物的方法
公开(公告)号：US06586638B1
公开(公告)日：2003-07-01
申请号：US10110946
申请日：2002-08-28
申请人： Shengfu Zhang , Jean-Pierre Arcangeli , Andrew Guy Livingston , Andrew Timothy Boam
发明人： Shengfu Zhang , Jean-Pierre Arcangeli , Andrew Guy Livingston , Andrew Timothy Boam
IPC分类号： C07C3768
CPC分类号： B01D61/246 , C02F1/44 , C02F1/441 , C02F1/442 , C02F1/444 , C07C37/009 , C07C37/70 , C07C37/82 , C07C39/04 , C07C39/07 , C07C39/30 , C07C39/28
摘要： There is provided a process for removing and recovering one or more unassociated phenolic compounds dissolved in aqueous fluid, the process comprising the steps of: (a) transferring the one or more unassociated phenolic compounds from the aqueous fluid to an alkaline stripping solution, wherein transfer of the one or more unassociated phenolic compounds from the aqueous fluid to the alkaline stripping solution occurs across a membrane; wherein the membrane is a non porous, selectively permeable membrane; (b) regulating the volume of alkaline stripping solution employed relative to the volume of aqueous fluid treated so that the total phenolic compound concentration in the alkaline stripping solution, comprising the sum of the dissociated and unassociated phenolic compound concentrations, is above the solubility of the phenolic compounds in the acidified stripping solution of step (d); (c) regulating the pH of the alkaline stripping solution in contact with the membrane to a value at least 0.5 pH units above the acidic dissociation constant of the phenolic compound; (d) adjusting the pH of the phenolic compound containing alkaline stripping solution to a value below the alkaline dissociation constant of the phenolic compound and (e) separating the resulting phenolic compound rich phase and the alkaline stripping solution.
摘要翻译：提供了一种除去和回收溶解在水性流体中的一种或多种未缔合的酚类化合物的方法，该方法包括以下步骤：（a）将一种或多种未缔合的酚类化合物从水性流体转移到碱性剥离溶液中，其中转移的一种或多种未缔合的酚类化合物从水性液体到碱性剥离溶液发生在膜上; 其中所述膜是非多孔的，选择性可渗透的膜; （b）相对于所处理的水性流体的体积调节所用的碱性剥离溶液的体积，使碱性剥离溶液中含有解离和未缔合的酚类化合物浓度之和的总酚类化合物浓度高于在步骤（d）的酸化汽提溶液中的酚类化合物; （c）将与膜接触的碱性剥离溶液的pH调节至高于酚类化合物的酸解离常数的至少0.5个pH单位的值; （d）将含有碱性剥离溶液的酚类化合物的pH调节至低于酚类化合物的碱解离常数的值，和（e）分离所得的酚类化合物相和碱性剥离溶液。

IPRDB

热门服务

关于我们

友情链接

联系方式