公开(公告)号：US06702943B1

公开(公告)日：2004-03-09

申请号：US10130958

申请日：2002-09-16

申请人： Bo-Lennart Johansson ,  Mikael Andersson ,  Jan Gustavsson ,  Makonnen Belew ,  Jean-Luc Maloisel

发明人： Bo-Lennart Johansson ,  Mikael Andersson ,  Jan Gustavsson ,  Makonnen Belew ,  Jean-Luc Maloisel

IPC分类号： B01D1508

CPC分类号： B01J41/20 ,  B01D15/327 ,  B01J41/09 ,  C02F1/42

摘要： A method for the removal of a substance carrying a negative charge and being present in an aqueous liquid (I). The method comprises the steps of: (i) contacting the liquid with a matrix carrying a plurality of ligands comprising a positively charged structure and a hydrophobic structure, and (ii) desorbing the substance. The characterizing feature is that (I) each of said ligands together with a spacer has the formula: —SP—[Ar—R1—N+(R2R3R4)] where (A) [Ar—R1—N+(R2R3R4)] represents a ligand a) Ar is an aromatic ring, b) R1 is [(L)nR′1]m where n and m are integers selected amongst zero or 1; L is amino nitrogen, ether oxygen or thioether sulphur; R′1 is a linker selected among 1) hydrocarbon groups; 2) —C(═NH)—; c) R2-4 are selected among hydrogen and alkyls; (B) SP is a spacer providing a carbon or a heteroatom directly attached to Ar—R1—N+(R2R3R4); (C)—represents that SP replaces a hydrogen in (Ar—R1—N+(R2R3R4); (D)—represents binding to the matrix; and (II) desorption. There is also described (a) anion-exchangers having high breakthrough capacities, (b) a screening method and (c) a desalting protocol.

摘要翻译： 一种用于去除携带负电荷并存在于水性液体（I）中的物质的方法。 该方法包括以下步骤：（i）使液体与承载包含带正电结构和疏水结构的多个配体的基质接触，和（ii）解吸该物质。 其特征在于：（I）每个所述配体与间隔基一起具有下式：-SP- [Ar-R1-N +（R2R3R4）]其中（A）[Ar-R1-N +（ R2R3R4）]表示配体a）Ar是芳环，b）R1是[（L）nR'1] m，其中n和m是选自零或1的整数; L为氨基氮，醚氧或硫醚硫; R'1是选自1）烃基的连接体; 2）-C（= NH） - ; c）R2-4选自氢和烷基; （B）SP是提供直接与Ar-R 1 -N +（R 2 R 3 R 4）连接的碳或杂原子的间隔基; （C） - 表示SP替代（Ar-R1-N +（R2R3R4）中的氢;（D） - 表示与基质的结合;和（II）解吸，还描述了（a）阴离子交换 具有较高的突破能力，（b）筛选方法和（c）脱盐方案。