公开(公告)号：US06306301B1

公开(公告)日：2001-10-23

申请号：US09454185

申请日：1999-12-03

申请人： Dibakar Bhattacharyya ,  Stephen M. Ritchie ,  Leonidas G. Bachas ,  Jamie A. Hestekin ,  Subhas K. Sikdar

发明人： Dibakar Bhattacharyya ,  Stephen M. Ritchie ,  Leonidas G. Bachas ,  Jamie A. Hestekin ,  Subhas K. Sikdar

IPC分类号： B01D6108

CPC分类号： B01D67/0093 ,  B01D61/00 ,  B01D71/12 ,  B01D71/16 ,  B01J20/28033 ,  B01J20/2808 ,  B01J20/3204 ,  B01J20/3219 ,  B01J20/3272 ,  B01J45/00 ,  C02F1/28 ,  C02F1/285 ,  C02F1/44 ,  C02F1/683 ,  C02F2101/20 ,  C08B3/22

摘要： An apparatus providing for metal ion/nitrate entrapment comprises a chemically activated, microfiltration, composite polymer and silica-based membrane including a polyamino acid attached thereto through reaction of a terminal amine group of the polyamino acid with the membrane. A method for preparing such a chemically activated or polyamino acid functionalized membrane includes the steps of permeating the silica-based membrane with a solution of silane and a solvent so as to react methoxy groups of the silane with silanol groups of the membrane to incorporate epoxide groups and attaching a polyamino acid to the membrane by reacting a terminal amine group of the polyamino acid with one of the epoxide groups on the membrane.

摘要翻译： 提供金属离子/硝酸盐捕获的装置包括化学活化的微滤，复合聚合物和二氧化硅基膜，其包括通过聚氨基酸的末端胺基与膜连接的聚氨基酸。 制备这种化学活化或聚氨基酸官能化膜的方法包括以下步骤：用硅烷和溶剂的溶液渗透二氧化硅基膜，以使硅烷的甲氧基与膜的硅烷醇基反应以引入环氧基 并通过使聚氨基酸的末端胺基与膜上的环氧基团之一反应，将聚氨基酸连接到膜上。

公开(公告)号：US06544419B1

公开(公告)日：2003-04-08

申请号：US09933371

申请日：2001-08-20

申请人： Dibakar Bhattacharyya ,  Stephen M. Ritchie ,  Leonidas G. Bachas ,  Jamie A. Hestekin ,  Subhas K. Sikdar

发明人： Dibakar Bhattacharyya ,  Stephen M. Ritchie ,  Leonidas G. Bachas ,  Jamie A. Hestekin ,  Subhas K. Sikdar

IPC分类号： B01D6700

CPC分类号： B01D67/0093 ,  B01D61/00 ,  B01D71/12 ,  B01D71/16 ,  B01J20/28033 ,  B01J20/2808 ,  B01J20/3204 ,  B01J20/3219 ,  B01J20/3272 ,  B01J45/00 ,  C02F1/28 ,  C02F1/285 ,  C02F1/44 ,  C02F1/683 ,  C02F2101/20 ,  C08B3/22

摘要： A method for preparing a chemically activated or polyamino acid functionalized membrane includes the steps of permeating a silica-based membrane with a solution of silane and a solvent so as to react methoxy groups of the silane with silanol groups of the membrane to incorporate epoxide groups and attaching a polyamino acid to the membrane by reacting a terminal amine group of the polyamino acid with one of the epoxide groups on the membrane.

摘要翻译： 制备化学活化或聚氨基酸官能化膜的方法包括以下步骤：用硅烷和溶剂的溶液渗透二氧化硅基膜，以使硅烷的甲氧基与膜的硅烷醇基团反应以引入环氧基团， 通过使聚氨基酸的末端胺基与膜上的环氧基团之一反应，将聚氨基酸连接到膜上。

公开(公告)号：US06544418B1

公开(公告)日：2003-04-08

申请号：US09932908

申请日：2001-08-20

申请人： Dibakar Bhattacharyya ,  Stephen M. Ritchie ,  Leonidas G. Bachas ,  Jamie A. Hestekin ,  Subhas K. Sikdar

发明人： Dibakar Bhattacharyya ,  Stephen M. Ritchie ,  Leonidas G. Bachas ,  Jamie A. Hestekin ,  Subhas K. Sikdar

IPC分类号： B01D6700

CPC分类号： B01D67/0093 ,  B01D61/00 ,  B01D71/12 ,  B01D71/16 ,  B01J20/28033 ,  B01J20/3242 ,  B01J45/00 ,  C08B3/22

摘要： A method for preparing and regenerating a chemically activated or polyamino acid functionalized membrane includes the steps of permeating the silica-based membrane with a solution of silane and a solvent so as to react methoxy groups of the silane with silanol groups of the membrane to incorporate epoxide groups and attaching a polyamino acid to the membrane by reacting a terminal amine group of the polyamino acid with one of the epoxide groups on the membrane. The membrane is regenerated after metal entrapment by utilizing helix-coil properties of polyamino acids.

摘要翻译： 用于制备和再生化学活化或聚氨基酸官能化膜的方法包括以下步骤：用硅烷和溶剂的溶液渗透二氧化硅基膜，以使硅烷的甲氧基与膜的硅烷醇基反应以引入环氧化物 并通过使聚氨基酸的末端胺基与膜上的环氧基团之一反应将聚氨基酸连接到膜上。 通过利用聚氨基酸的螺旋线圈性质，在金属夹带之后再生膜。