GB858137A - Improvements in ion-exchange materials and processes - Google Patents
Improvements in ion-exchange materials and processesInfo
- Publication number
- GB858137A GB858137A GB3956/58A GB395658A GB858137A GB 858137 A GB858137 A GB 858137A GB 3956/58 A GB3956/58 A GB 3956/58A GB 395658 A GB395658 A GB 395658A GB 858137 A GB858137 A GB 858137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ion
- rods
- cross
- solvent
- exchange resin
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J47/00—Ion-exchange processes in general; Apparatus therefor
- B01J47/018—Granulation; Incorporation of ion-exchangers in a matrix; Mixing with inert materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
In an ion-exchange process the ions in a liquid e.g. hard water, aqueous slurry or pulp, are contacted with short rods consisting of or containing ion-exchange resin. The rods may be between 0,3 mm. and 12 mm. long, of crosssectional dimension between 0,1 and 2 mm. and the ratio of length to cross-sectional dimension is between 3:1 and 6:1. The ion-exchange resin may be dispersed in a polymer matrix and prepared by mixing the resin and polymer in a solvent and extruding into rods which are cut before or after the evaporation of solvent. In examples, resins e.g. chloromethylated and aminated or sulphonated cross-linked polystyrene are dispersed in polystyrene, polymethyl methacrylate or a polyvinyl choride matrix, with the aid of a solvent such as benzene, methyl methacrylate and tetrahydrofurane and or phenolformaldehyde resin from phenol, sodium metabisulphite, sodium hydroxide and formaldehyde, are extruded into rods. The resins may be used in the extraction of uranium from a slurry of ground uranium ore leached with dilute sulphuric acid from a solution of uranyl and ferric sulphate, or for the softening of water.ALSO:In an ion-exchange process the ions in a liquid, e.g. hard water, aqueous slurry or pulp, are contacted with short rods consisting of or containing ion-exchange resin. The rods may be between 0.3 mm. and 12 mm. long, of cross-sectional dimension between 0.1 and 2 mm. and the ratio of length to cross-sectional dimension is between 3:1 and 6:1. The ion-exchange resin may be dispersed in a polymer matrix and prepared by mixing the resin and polymer in a solvent and extruding into rods which are cut before or after the evaporation of solvent. In examples resins, e.g. chloromethylated and aminated, or sulphonated cross-linked polystyrene are dispersed in polystyrene, polymethyl methacrylate or a polyvinyl chloride matrix with the aid of a solvent such as benzene, methyl methacrylate and tetrahydrofurane and a phenol-formaldehyde resin from phenol, sodium metabisulphite, sodium hydroxide and formaldehyde, are extruded into rods. The resins may be used in the extraction of uranium from a slurry of ground uranium ore leached with dilute sulphuric acid, or from a solution of uranyl and ferric sulphate. Elution may be effected with a solution consisting of 0.9 to 1 M. ammonium nitrate and 0.1 M. nitric acid.ALSO:Hard water is softened by contacting with short rods consisting of or containing ion-exchange resin. The rods may be between 0,3 mm and 12 mm long, of cross-sectional dimension between 0,1 and 2 mm and the ratio of the length to cross-sectional dimension is between 3 : 1 and 6 : 1. The ion-exchange resin may be dispersed in a polymer matrix. In examples resins such as chloromethylated and aminated, or sulphonated cross-linked polystyrene are disposed in polystyrene, polymethyl methacrylate or a polyvinyl chloride matrix, or a phenol formaldehyde ion exchange resin are mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3956/58A GB858137A (en) | 1958-02-11 | 1958-02-11 | Improvements in ion-exchange materials and processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3956/58A GB858137A (en) | 1958-02-11 | 1958-02-11 | Improvements in ion-exchange materials and processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB858137A true GB858137A (en) | 1961-01-04 |
Family
ID=9768061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3956/58A Expired GB858137A (en) | 1958-02-11 | 1958-02-11 | Improvements in ion-exchange materials and processes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB858137A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0621072A2 (en) * | 1993-04-21 | 1994-10-26 | Nippon Rensui Co. | Demineralization apparatus comprising a diluting chamber packed with a cloth |
| NL1017993C2 (en) * | 2001-05-04 | 2002-11-05 | Univ Delft Tech | Rod-shaped ion exchanger useful for purifying liquids or recovering components from liquids comprises a metal wire core surrounded by an ion-exchange resin |
| EP2808080A4 (en) * | 2012-01-27 | 2015-10-21 | Nippon Filcon Kk | Polymer adsorbent |
| CN117467862A (en) * | 2023-12-22 | 2024-01-30 | 核工业北京化工冶金研究院 | Method for preventing resin organic matter poisoning in neutral leaching uranium mining hydrometallurgy process |
-
1958
- 1958-02-11 GB GB3956/58A patent/GB858137A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0621072A2 (en) * | 1993-04-21 | 1994-10-26 | Nippon Rensui Co. | Demineralization apparatus comprising a diluting chamber packed with a cloth |
| EP0621072A3 (en) * | 1993-04-21 | 1994-12-28 | Nippon Rensui Kk | Demineralization apparatus and cloth for packing diluting chamber of the demineralization apparatus. |
| US5512173A (en) * | 1993-04-21 | 1996-04-30 | Nippon Rensui Co. | Demineralization apparatus and cloth for packing diluting chamber of the demineralization apparatus |
| NL1017993C2 (en) * | 2001-05-04 | 2002-11-05 | Univ Delft Tech | Rod-shaped ion exchanger useful for purifying liquids or recovering components from liquids comprises a metal wire core surrounded by an ion-exchange resin |
| EP2808080A4 (en) * | 2012-01-27 | 2015-10-21 | Nippon Filcon Kk | Polymer adsorbent |
| CN117467862A (en) * | 2023-12-22 | 2024-01-30 | 核工业北京化工冶金研究院 | Method for preventing resin organic matter poisoning in neutral leaching uranium mining hydrometallurgy process |
| CN117467862B (en) * | 2023-12-22 | 2024-03-29 | 核工业北京化工冶金研究院 | Method for preventing resin organic matter poisoning in neutral leaching uranium mining hydrometallurgy process |
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