| 发明名称 |
Electrodialysis |
| 摘要 |
An electrodialysis unit comprising at least two electrodialysis stacks (ED1 and ED2) connected in series, wherein: (a) stacks ED1 and ED2 comprise anion exchange membranes and cation exchange membranes; and (b) the anion exchange membranes in stack ED1 have a lower electrical resistance than the anion exchange membranes in stack ED2 and the cation exchange membranes in stack ED1 have a lower electrical resistance than the cation exchange membranes in stack ED2. Also claimed is a process for purifying liquids, e.g. for desalinating sea water or brackish water. |
| 申请公布号 |
US2016152492(A1) |
申请公布日期 |
2016.06.02 |
| 申请号 |
US201414904534 |
申请日期 |
2014.06.12 |
| 申请人 |
FUJIFILM MANUFACTURING EUROPE BV |
发明人 |
Bhikhi Vinodnarain;Van Baak Willem |
| 分类号 |
C02F1/469 |
主分类号 |
C02F1/469 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An electrodialysis unit comprising at least two electrodialysis stacks (ED1 and ED2) connected in series, wherein:
(a) stacks ED1 and ED2 comprise anion exchange membranes and cation exchange membranes; (b) the anion exchange membranes in stack ED1 have a lower electrical resistance than the anion exchange membranes in stack ED2 and the cation exchange membranes in stack ED1 have a lower electrical resistance than the cation exchange membranes in stack ED2; (c) the water-permeability of the cation exchange membranes in stack ED2 is 2 to 20 times lower than the water-permeability of the cation exchange membranes in stack ED1; and (d) the water-permeability of the anion exchange membranes in stack ED2 is 2 to 20 times lower than the water-permeability of the anion exchange membranes in stack ED1. |
| 地址 |
Tilburg NL |
