公开(公告)号：US4514304A

公开(公告)日：1985-04-30

申请号：US537625

申请日：1983-09-30

申请人： Yoshiyuki Miyaki ,  Yoshitaka Fujita ,  Kazunori Se ,  Teruo Fujimoto

发明人： Yoshiyuki Miyaki ,  Yoshitaka Fujita ,  Kazunori Se ,  Teruo Fujimoto

IPC分类号： C07B63/00 ,  B01D61/00 ,  B01D71/28 ,  B01D71/80 ,  C07B31/00 ,  C07C67/00 ,  C08J5/22 ,  B01D13/00

CPC分类号： B01D61/44 ,  B01D71/80 ,  B01D2325/18

摘要： A method for purifying and concentrating organic matters by employing an amphoteric ion-exchange membrane which is made of a ternary block copolymer consisting of a macromolecule poly A.sup.- having cation-exchange group, a macromolecule poly B.sup.+ having anion-exchange group and a macromolecule poly C having no ion-exchange group and allows sodium chloride to permeate at a concentration not lower than 100% of that in the starting aqueous solution when a pressure of 50 kg/cm.sup.2 is given to the starting aqueous solution of sodium chloride of 0.01 g/dl and by allowing inorganic salts to permeate selectively from an aqueous solution of the organic compounds containing the inorganic salts with giving an increased pressure thereto.

摘要翻译： 通过使用由具有阳离子交换基团的大分子聚A，具有阴离子交换基团的高分子量聚B +和高分子组成的三元嵌段共聚物构成的两性离子交换膜来提纯和浓缩有机物质的方法 没有离子交换基团的聚C，当起始水溶液的浓度不低于100％的浓度时，氯化钠以0.01g / cm 2的氯化钠水溶液施加50kg / cm 2的压力 / dl，并且通过允许无机盐从含有无机盐的有机化合物的水溶液中选择性地渗透，同时增加其压力。