公开(公告)号：US09839879B2

公开(公告)日：2017-12-12

申请号：US14582551

申请日：2014-12-24

申请人： Woongjin Chemical Co., Ltd.

发明人： Sung Dae Chi ,  Bong Jun Cha ,  Jong Hwa Lee ,  Doo Ri Kim ,  Su Jeong Lim

IPC分类号： B01D39/00 ,  B01D29/00 ,  B01D29/46 ,  B01D39/14 ,  B01D61/00 ,  B01D69/12 ,  B01D71/56 ,  B01D71/16 ,  B29C41/00 ,  B29C41/22 ,  B29C41/42 ,  B01D67/00 ,  B01D69/10 ,  B01D71/68 ,  B29K77/00 ,  B29K33/20 ,  B29K81/00 ,  B29L31/00 ,  B29L9/00 ,  B01D71/38 ,  B01D71/40 ,  B01D71/42 ,  B01D71/44 ,  B01D71/52 ,  B01D71/60

CPC分类号： B01D61/002 ,  B01D61/00 ,  B01D67/0006 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D71/16 ,  B01D71/38 ,  B01D71/40 ,  B01D71/42 ,  B01D71/44 ,  B01D71/52 ,  B01D71/56 ,  B01D71/60 ,  B01D71/68 ,  B01D2323/30 ,  B01D2325/022 ,  B01D2325/025 ,  B01D2325/026 ,  B01D2325/26 ,  B01D2325/36 ,  B29C41/003 ,  B29C41/22 ,  B29C41/42 ,  B29K2033/20 ,  B29K2077/00 ,  B29K2081/06 ,  B29K2995/0092 ,  B29L2009/00 ,  B29L2031/755 ,  Y02A20/131

摘要： A forward osmosis membrane for seawater desalination and a method for preparing the same. The forward osmosis membrane has a composite membrane structure including a nonwoven fabric layer; a hydrophilic polymer layer; and a polyamide layer. The hydrophilic polymer layer formed on the nonwoven fabric layer facilitates an inflow of water from the feed water to the draw solution to enhance flux and realize high water permeability in the direction of osmosis. The polyamide layer not only secures contamination resistance and chemical resistance but also minimizes the back diffusion of salts of the draw solution in the direction of reverse osmosis. Hence, the forward osmosis membrane of the present invention is greatly useful for desalination of high-concentration seawater.

公开(公告)号：US20150108061A1

公开(公告)日：2015-04-23

申请号：US14582551

申请日：2014-12-24

申请人： Woongjin Chemical Co., Ltd.

发明人： Sung Dae Chi ,  Bong Jun Cha ,  Jong Hwa Lee ,  Doo Ri Kim ,  Su Jeong Lim

IPC分类号： B01D61/00 ,  B01D71/56 ,  B29C41/42 ,  B01D71/16 ,  B29C41/00 ,  B29C41/22 ,  B01D69/12 ,  B01D71/68

CPC分类号： B01D61/002 ,  B01D61/00 ,  B01D67/0006 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D71/16 ,  B01D71/38 ,  B01D71/40 ,  B01D71/42 ,  B01D71/44 ,  B01D71/52 ,  B01D71/56 ,  B01D71/60 ,  B01D71/68 ,  B01D2323/30 ,  B01D2325/022 ,  B01D2325/025 ,  B01D2325/026 ,  B01D2325/26 ,  B01D2325/36 ,  B29C41/003 ,  B29C41/22 ,  B29C41/42 ,  B29K2033/20 ,  B29K2077/00 ,  B29K2081/06 ,  B29K2995/0092 ,  B29L2009/00 ,  B29L2031/755 ,  Y02A20/131

摘要： A forward osmosis membrane for seawater desalination and a method for preparing the same. The forward osmosis membrane has a composite membrane structure including a nonwoven fabric layer; a hydrophilic polymer layer; and a polyamide layer. The hydrophilic polymer layer formed on the nonwoven fabric layer facilitates an inflow of water from the feed water to the draw solution to enhance flux and realize high water permeability in the direction of osmosis. The polyamide layer not only secures contamination resistance and chemical resistance but also minimizes the back diffusion of salts of the draw solution in the direction of reverse osmosis. Hence, the forward osmosis membrane of the present invention is greatly useful for desalination of high-concentration seawater.

摘要翻译： 用于海水淡化的正向渗透膜及其制备方法。 正向渗透膜具有包括无纺布层的复合膜结构; 亲水性聚合物层; 和聚酰胺层。 形成在非织造织物层上的亲水性聚合物层有助于从供给水流入拉伸溶液中以增加通量并在渗透方向上实现高透水性。 聚酰胺层不仅确保了耐污染性和耐化学性，而且还使反渗透方向上的拉伸溶液的盐的反向扩散最小化。 因此，本发明的正向渗透膜对于高浓度海水的脱盐是非常有用的。