GB897006A - Improvements in or relating to mixtures of ion-exchange resins - Google Patents
Improvements in or relating to mixtures of ion-exchange resinsInfo
- Publication number
- GB897006A GB897006A GB2748157A GB2748157A GB897006A GB 897006 A GB897006 A GB 897006A GB 2748157 A GB2748157 A GB 2748157A GB 2748157 A GB2748157 A GB 2748157A GB 897006 A GB897006 A GB 897006A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- ion
- exchange resin
- basic
- exchange
- 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
- B01J47/02—Column or bed processes
- B01J47/04—Mixed-bed processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Ion-exchange resin compositions suitable for de-ionizing water in mixed-bed de-ionisers comprise a mixture of (1) a basic ion-exchange resin with quaternary ammonium reactive groups, (2) a strongly acidic ion-exchange resin with for example sulphonic acid active groups, and a minor proportion by weight based upon the above two resins of a resin (3) comprising a basic ion-exchange resin in which the reactive groups consist initially of quaternary ammonium and tert. amine groups, or a weakly basic ion-exchange resin, or a weakly acidic ion-exchange resin. The weakly basic and acidic ion-exchange resins have secondary or t-amine groups, such as would result from the chloromethylation and subsequent amination of a polystyrene resin and carboxylic acid or phenolic hydroxyl groups respectively. The basic resin (1) and the acidic resin (2) are preferably in a ratio of from 1 1/2 to 2:1 and the third resin is preferably present in from 2 1/2 to 25% by weight.ALSO:A mixed-bed ion-exchange resin de-ioniser for water comprises a mixture of (1) a basic ion-exchange resin with quaternary ammonium reactive groups, (2) a strongly acidic ion-exchange resin with, for example sulphonic acid active groups, and a minor proportion by weight, based on the above two resins, of a resin (3) comprising a basic ion-exchange resin in which the reactive groups consist initially of quaternary ammonium and tert-amine groups, or a weakly basic ion-exchange resin, or a weakly acidic ion-exchange resin. The weakly basic and acidic ion-exchange resins have sec or tert amine groups, such as would result from the chloromethylation and subsequent amination of a polystyrene resin, and carboxylic or phenolic hydroxyl groups respectively. The basic resin (1) and the acidic resin (2) are preferably in a ratio of from 1 1/2 to 2 : 1, and the third resin is present in from 2 1/2 to 25% by weight. The feed water is passed through a bed of the mixture, and may be regenerated and remixed in situ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2748157A GB897006A (en) | 1957-08-31 | 1957-08-31 | Improvements in or relating to mixtures of ion-exchange resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2748157A GB897006A (en) | 1957-08-31 | 1957-08-31 | Improvements in or relating to mixtures of ion-exchange resins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB897006A true GB897006A (en) | 1962-05-23 |
Family
ID=10260293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2748157A Expired GB897006A (en) | 1957-08-31 | 1957-08-31 | Improvements in or relating to mixtures of ion-exchange resins |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB897006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001096036A1 (en) * | 2000-06-14 | 2001-12-20 | The Procter & Gamble Company | Spray cleaning device |
| CN114072232A (en) * | 2019-07-04 | 2022-02-18 | 陶氏环球技术有限责任公司 | Method for purifying organic solvents |
-
1957
- 1957-08-31 GB GB2748157A patent/GB897006A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001096036A1 (en) * | 2000-06-14 | 2001-12-20 | The Procter & Gamble Company | Spray cleaning device |
| CN114072232A (en) * | 2019-07-04 | 2022-02-18 | 陶氏环球技术有限责任公司 | Method for purifying organic solvents |
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