GB746609A - Process for reducing the concentration of electrolyte in a solution - Google Patents
Process for reducing the concentration of electrolyte in a solutionInfo
- Publication number
- GB746609A GB746609A GB1650/54A GB165054A GB746609A GB 746609 A GB746609 A GB 746609A GB 1650/54 A GB1650/54 A GB 1650/54A GB 165054 A GB165054 A GB 165054A GB 746609 A GB746609 A GB 746609A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartments
- solution
- concentration
- reducing
- anions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003792 electrolyte Substances 0.000 title abstract 2
- 150000001450 anions Chemical class 0.000 abstract 2
- 150000001768 cations Chemical class 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 239000013535 sea water Substances 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000003456 ion exchange resin Substances 0.000 abstract 1
- 229920003303 ion-exchange polymer Polymers 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/422—Electrodialysis
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
<PICT:0746609/III/1> For reducing the concentration of electrolytes in a solution a cell is used divided by membranes 5-8 into at least four compartments 1-4 arranged in a closed circuit, alternate membranes being capable of transmitting cations only (5, 7) and anions only (6, 8) respectively. Suitable materials are ion exchange resins moulded with a plastic into coherent sheets. Compartment 4 contains the solution under treatment, e.g. sea water and 2 and 3 may also initially contain it, while 1 contains a solution of greater ionic activity, e.g. sea water with added common salt. Consequently cations and anions migrate from 1 to 2 and 3 respectively causing these compartments to become positively and negatively charged, whereupon ions of opposite nature migrate from 4 to restore equilibrium in these compartments. By employing a circuit of 8 compartments a two stage reduction of concentration may be similarly effected.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE746609X | 1953-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB746609A true GB746609A (en) | 1956-03-14 |
Family
ID=6648428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1650/54A Expired GB746609A (en) | 1953-01-19 | 1954-01-19 | Process for reducing the concentration of electrolyte in a solution |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB746609A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2947688A (en) * | 1957-01-10 | 1960-08-02 | George W Murphy | Process and apparatus for the demineralization of saline water |
| DE1161855B (en) * | 1960-04-14 | 1964-01-30 | Wolfen Filmfab Veb | Process for separating acids from salts and / or non-electrolytes |
| US8137522B2 (en) | 2008-06-24 | 2012-03-20 | Saltworks Technologies Inc. | Method for desalinating saltwater using concentration difference energy |
| US8236158B2 (en) | 2009-04-09 | 2012-08-07 | Saltworks Technologies Inc. | Method for desalinating saltwater using concentration difference energy |
-
1954
- 1954-01-19 GB GB1650/54A patent/GB746609A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2947688A (en) * | 1957-01-10 | 1960-08-02 | George W Murphy | Process and apparatus for the demineralization of saline water |
| DE1161855B (en) * | 1960-04-14 | 1964-01-30 | Wolfen Filmfab Veb | Process for separating acids from salts and / or non-electrolytes |
| US8137522B2 (en) | 2008-06-24 | 2012-03-20 | Saltworks Technologies Inc. | Method for desalinating saltwater using concentration difference energy |
| US8236158B2 (en) | 2009-04-09 | 2012-08-07 | Saltworks Technologies Inc. | Method for desalinating saltwater using concentration difference energy |
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