会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 118. 发明授权
    • Use of aqueous triethylamine/phosphoric acid salt solutions to extract
water and triethylamine from solutions thereof in organic solvents
    • 使用三乙胺/磷酸盐水溶液从有机溶剂中的溶液中提取水和三乙胺
    • US4326082A
    • 1982-04-20
    • US137653
    • 1980-04-07
    • Patrick H. MartinStephen L. Michaels
    • Patrick H. MartinStephen L. Michaels
    • C07C85/26
    • C07C209/68C07C209/86
    • Triethylamine and water are simultaneously removed from solutions in organic solvents, by liquid/liquid extraction with concentrated aqueous solutions of (C.sub.2 H.sub.5).sub.3 N.H.sub.3 PO.sub.4 which preferably contain free phosphoric acid as well. Upon heating of the resulting extract, the water and amine taken up are boiled off and the extractant regenerated. The method is of particular value in the preparation of aqueous coating compositions comprising reaction products of polyether epoxides and H.sub.3 PO.sub.4 in organic media. The reaction product is salified with triethylamine in excess, in the presence of added water. The organic solvent is boiled off, together with the excess amine and some of the water, to form an aqueous dispersion of the salified product and a distillate which can be processed by the method of the invention. The recovered solvent, water and amine may be recycled.
    • 通过液体/液体萃取(C2H5)3N.H3PO4的浓度水溶液(其优选含有游离磷酸)同时从有机溶剂溶液中除去三乙胺和水。 在加热得到的提取物时,将所吸收的水和胺煮沸并且萃取剂再生。 该方法在包含聚醚环氧化物和H 3 PO 4在有机介质中的反应产物的水性涂料组合物的制备中是特别有价值的。 在加入水的存在下,将反应产物用三乙胺过量盐化。 将有机溶剂与过量的胺和一些水一起煮沸,以形成可以通过本发明的方法处理的成盐产物和馏出物的水分散体。 回收的溶剂,水和胺可以再循环。