CN1233534A - Chemical conversion method for preparing magnetic anion exchange resin - Google Patents
Chemical conversion method for preparing magnetic anion exchange resin Download PDFInfo
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- CN1233534A CN1233534A CN 99116085 CN99116085A CN1233534A CN 1233534 A CN1233534 A CN 1233534A CN 99116085 CN99116085 CN 99116085 CN 99116085 A CN99116085 A CN 99116085A CN 1233534 A CN1233534 A CN 1233534A
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- exchange resin
- magnetic
- resin
- consumption
- anion exchange
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present invention relates to the chemical conversion method to prepare magnetic anion-exchange resin. It uses specified quantity of macroporous type strong alkaline anion-exchange resin as raw material through impregnating treatment with certain complex compound solution for specified time, then impregnating with a mixed solution of ferric salt and ferrous salt under definite temp. for specified time, then converting in dilute alkaline solution under slow stirring for specified time, finally using deionized water to wash the obtd. magnetic anion-exchang resin to pH 5.5-8.5 to obtain the product. The present invention is simple in technology, easy to control the prepn. condition, the obtained resin is strong in magnetic property, even in magnetic material distribution, even in granular size etc.
Description
The present invention is the chemical conversion method for preparing of magnetic anion exchange resin, belongs to the exchanger resin technology of preparing, the particularly preparation of magnetic ion exchange resin.
Exchange operations is a kind ofly to have the heterogeneous diffusion mass transfer universal law of solid-liquid and be different from the novel chemical engineering unit operation of traditional separation process.The organic ion exchanger resin is since nineteen thirty-five comes out, experienced the developing history of six more than ten years, new type resin continues to bring out therebetween, particularly nearly two during the last ten years, the macroreticular resin that grows up on the gel resin basis has overcome the some shortcomings part of gel resin, impels the range of application of ion exchange resin to enlarge day by day.At present, fields such as chemical industry, electric power, electronics, environmental science, hydrometallurgy, analytical chemistry, food processing, medical medicine have been widely used in.In the ion exchange resin application process, it is higher or contain the system of suspension often to run into viscosity, and the exchange velocity of at this moment common ion exchange resin obviously slows down, and exchange capacity is difficult to performance or solid-liquid two-phase separation difficulty.If adopt the magnetic ion exchange resin that contains magnetisable material, then can utilize the effect in magnetic field, at an easy rate resin is separated with solution; Simultaneously can also reduce its particle diameter, increase the specific area of resin, thereby increase exchange capacity and improve operating efficiency; And can make the ion-exchange of industry solution and resin isolation, regeneration integrated, and realize continuous operation, effectively reduce operating cost.At present, magnetic resin does not also have commercialization, and breadboard preparation also mainly is to adopt synthetic method.This method exists the strict control of reaction condition, complex process, the difficult control of the granularity of the magnetic resin of preparing, magnetisable material skewness, problem such as magnetic is weak, magnetic stability is relatively poor.
Purpose of the present invention be exactly for overcome and solve the strict control of reaction condition adopting synthetic method to prepare magnetic ion exchange resin to exist, complex process, the difficult control of magnetic resin size of preparing, magnetisable material skewness, magnetic a little less than, the shortcoming and the problem of magnetic stability difference etc., a kind of preparation technology of research invention is simple and feasible, the magnetic resin magnetic that makes is strong, epigranular, exchange capacity do not handle because of magnetization descend, the chemical conversion method for preparing of magnetic anion exchange resin that magnetic stability is good.
The present invention realizes by following technical proposals: (consumption all is weight percentage) is being raw material as D201 macroporous type strong-base anion-exchange resin, its consumption is 10～30%, through as enveloping agent solution impregnation process 40～160mim such as sodium ethylene diamine tetracetate, oxalic acid, tartaric acid, sodium malonate, acetimidic acids, be 30～60% Fe again through consumption
3+With Fe
2+Mol ratio is 1: the molysite mixed solution of (1～40) is impregnation process 60～180min under 20～60 ℃ of temperature conditions, then consumption be 1～5mol/L of 20～45% as NaOH HaOH potassium hydroxide KOH sig water under rotating speed is the stirring at a slow speed of 30～300r/min, transform 10～60min, the magnetic anion exchange resin washing that conversion is made with deionized water at last is to its pH=5.5～8.5; The performance of the magnetic anion exchange resin that makes with this method is as follows: exchange capacity is 2.85～3.25mmol/g; Mass susceptibility is 0.5 * 10
-2～2.3 * 10
2Cm
2/ g; Fe in the resin
3O
4Content be 0～40%; Resin is magnetic stability in alkali and neutral salt solution, does not also see have iron ion to be dissolved out in 7 days even soak, and mass susceptibility does not have obviously decline yet.
The present invention compared with prior art has following advantage and beneficial effect: (1) preparation technology is simple and feasible, and preparation condition is easy to control, has overcome existing preparation magnetic resin complex process, preparation condition shortcoming rambunctious and problem; (2) the magnetic resin magnetic with the present invention's preparation is strong, exchange capacity is high and because of the magnetization processing descends, it has solved the problem that magnetic resin magnetic is weak, exchange capacity is low of prior art for preparing; (3) the magnetic resin magnetisable material with the inventive method preparation is evenly distributed, and epigranular has solved the problems such as the difficult control of magnetic resin granularity, magnetisable material skewness of prior art for preparing.
Enforcement of the present invention is to be relatively easy to, as long as operate by the described method of top specification, just can implement the present invention preferably.The inventor has many successful embodiment through years of researches, below several embodiment are listed as into table 1.
Consumption is weight percentage in the table 1:(table)
Claims (1)
1, a kind of chemical conversion method for preparing of magnetic anion exchange resin, it is characterized in that: consumption all is weight percentage, being raw material as D201 macroporous type strong-base anion-exchange resin, its consumption is 10～30%, through receive as ethylenediamine tetra-acetic acid, enveloping agent solution impregnation process 40～160min such as oxalic acid, tartaric acid, sodium malonate, acetimidic acid, be 30～60% Fe again through consumption
3+With Fe
2+Mol ratio is 1: the molysite mixed solution of (1～40) is impregnation process 60～180min under 20～60 ℃ of temperature conditions, then consumption be 1～5mol/L of 20～45% as the sig water of NaOH HaOH, potassium hydroxide KOH under rotating speed is the stirring at a slow speed of 30～300r/min, transform 10～60min, the magnetic anion exchange resin washing that conversion is made with deionized water at last is to its pH=5.5～8.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116085A CN1077455C (en) | 1999-03-18 | 1999-03-18 | Chemical conversion method for preparing magnetic anion exchange resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99116085A CN1077455C (en) | 1999-03-18 | 1999-03-18 | Chemical conversion method for preparing magnetic anion exchange resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1233534A true CN1233534A (en) | 1999-11-03 |
| CN1077455C CN1077455C (en) | 2002-01-09 |
Family
ID=5278934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99116085A Expired - Fee Related CN1077455C (en) | 1999-03-18 | 1999-03-18 | Chemical conversion method for preparing magnetic anion exchange resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1077455C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800337A (en) * | 2010-02-05 | 2010-08-11 | 湖南科霸汽车动力电池有限责任公司 | Additive for alkaline electrochemical device, alkaline electrochemical device and preparation method |
| CN107694612A (en) * | 2017-09-05 | 2018-02-16 | 华南理工大学 | It is a kind of to remove material of bromate and its precursor and its preparation method and application in water removal |
| WO2019095628A1 (en) * | 2017-11-17 | 2019-05-23 | 南京大学 | Strong alkaline anion exchange resin having high mechanical strength and magnetism, and preparation method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268247A (en) * | 1975-12-02 | 1977-06-06 | Rikagaku Kenkyusho | Ferromagnetic synthetic resins |
| US4719242A (en) * | 1985-12-20 | 1988-01-12 | Allied-Signal Inc. | Deionization sorbent comprised of ion exchange resin and polymer binder and ferromagnetic substance |
| US4719241A (en) * | 1985-12-20 | 1988-01-12 | Allied-Signal Inc. | Deionization sorbent comprised of ion exchange resin and polymer binder and ferromagnetic substance |
| CN1036526C (en) * | 1991-01-29 | 1997-11-26 | 华南理工大学 | Preparation of magnetic macroporous ion-exchange resin for adsorption |
-
1999
- 1999-03-18 CN CN99116085A patent/CN1077455C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800337A (en) * | 2010-02-05 | 2010-08-11 | 湖南科霸汽车动力电池有限责任公司 | Additive for alkaline electrochemical device, alkaline electrochemical device and preparation method |
| CN107694612A (en) * | 2017-09-05 | 2018-02-16 | 华南理工大学 | It is a kind of to remove material of bromate and its precursor and its preparation method and application in water removal |
| WO2019095628A1 (en) * | 2017-11-17 | 2019-05-23 | 南京大学 | Strong alkaline anion exchange resin having high mechanical strength and magnetism, and preparation method therefor |
| US11458448B2 (en) * | 2017-11-17 | 2022-10-04 | Nanjing University | Magnetic strong base anion exchange resin with high mechanical strength, and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1077455C (en) | 2002-01-09 |
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