公开(公告)号：US4983291A

公开(公告)日：1991-01-08

申请号：US450637

申请日：1989-12-14

申请人： Michael M. Chau ,  William G. Light ,  Hong C. Chu

发明人： Michael M. Chau ,  William G. Light ,  Hong C. Chu

IPC分类号： B01D67/00 ,  B01D69/12

CPC分类号： B01D67/0088 ,  B01D69/125

摘要： High flux semipermeable membranes which comprises the polymerized reaction product within and/or on a porous support backing material may be prepared by contacting the porous support such as a polysulfone with an aqueous solution of a polyamine which may, if so desired, contain a polar aprotic solvent not reactive with the amines, a polyhydric compound and an acid acceptor. The surface of the coated support is freed of excess solution and thereafter contacted with an organic solution of a polyacyl halide for a period of time sufficient to form a polymerized reaction product within and/or on the support material. The resulting composite is then treated with a hydroxy polycarboxylic acid, polyaminoalkylene polycarboxylic acid, suffonic acid, amine salts of acids, amino acid, amino acid salt, polymeric acid and inorganic acid, before drying of the membrane. This will enable the membrane to be stored in a dry manner prior to use thereof in a separation process. The resultant membrane composite may be used in separation processes such as desalination of brackish or sea water or the softening of domestic hard water.

摘要翻译： 在多孔载体背衬材料内和/或多孔载体背衬材料上包含聚合的反应产物的高通量半透膜可以通过使诸如聚砜的多孔载体与多胺的水溶液接触来制备，如果需要，其可以含有极性非质子 不与胺反应的溶剂，多羟基化合物和酸受体。 涂覆的载体的表面没有过量的溶液，然后与多酰基卤的有机溶液接触足以在载体材料内和/或载体材料上形成聚合反应产物的时间。 然后在干燥膜之前，用羟基多元羧酸，聚氨基亚烷基多元羧酸，己酸，酸的胺盐，氨基酸，氨基酸盐，聚合酸和无机酸处理得到的复合物。 这将使膜能够在分离过程中使用之前以干燥方式储存。 所得到的膜复合物可以用于分离过程，例如咸水或海水的淡化或家庭硬水的软化。

公开(公告)号：US4830885A

公开(公告)日：1989-05-16

申请号：US59295

申请日：1987-06-08

申请人： Chinh N. Tran ,  Hong C. Chu ,  William G. Light

发明人： Chinh N. Tran ,  Hong C. Chu ,  William G. Light

IPC分类号： G05B13/02 ,  B01D20060101 ,  B01D67/00 ,  B01D69/12 ,  B01D71/58 ,  G05B5/01 ,  G05D17/02 ,  H02P29/00

CPC分类号： G05B5/01 ,  B01D69/125 ,  Y10T428/31536

摘要： Chlorine-resistant semipermeable membranes which comprise an interfacial polymerized reaction product composite on a porous support backing material may be prepared by contacting a porous support material such as polysulfone with an aqueous solution of an aromatic polyamine, said aqueous solution containing a polyhydric compound and an acid acceptor. The coated support material is then contacted with an organic solvent solution of an aromatic polycarboxylic acid halide for a period of time sufficient to form an interfacial polymerized reaction product on the surface of the support material. The resulting composite is then post treated by washing with an alkaline compound, leaching with sodium bisulfite and treating the leached composite with a polyhydric compound. The resultant membrane composite may be used in separation processes such as the desalination of brackish or sea water, trhe membrane being resistant to attack by chlorine which is present in the water.

摘要翻译： 在多孔支撑背衬材料上包含界面聚合反应产物复合材料的耐氯半透膜可以通过将多孔载体材料如聚砜与芳族多胺的水溶液接触来制备，所述水溶液含有多羟基化合物和酸 受体。 然后将涂覆的载体材料与芳族多元羧酸卤化物的有机溶剂溶液接触足以在载体材料的表面上形成界面聚合反应产物的时间。 然后将所得复合物用碱性化合物洗涤后处理，用亚硫酸氢钠浸出并用多羟基化合物处理浸出的复合物。 所得到的膜复合物可以用于分离过程，例如咸水或海水的淡化，膜对水中存在的氯的抵抗是抗性的。