CN1077455C - 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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- CN1077455C CN1077455C CN99116085A CN99116085A CN1077455C CN 1077455 C CN1077455 C CN 1077455C CN 99116085 A CN99116085 A CN 99116085A CN 99116085 A CN99116085 A CN 99116085A CN 1077455 C CN1077455 C CN 1077455C
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- exchange resin
- chemical conversion
- conversion method
- anion exchange
- magnetic
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Abstract
The present invention relates to a chemical conversion method for preparing magnetic anion exchange resin, which comprises the flowing steps: a certain using amount of macropore strong basic anion-exchange resin is used as a raw material and is dipped for certain time by chelating agent solution; the macropore strong basic anion-exchange resin is dipped for certain time by a certain using quantity of ferric salt mixed solution of fe3+ and fe2+ with the molar ratio of 1: (1 to 40) at certain temperature; and the prepared magnetism anion-exchange resin is washed to the pH of 5.5 to 8.5 by de-ionized water. The chemical conversion method for preparing magnetic anion exchange resin has the advantages of simple and feasible technology, easily controlled preparation condition, strong obtained resin magnetism, uniform magnetic substance distribution, uniform magnetic substance particle size, high magnetic substance exchange capacity and no descending phenomenon because of a magnetizing treatment.
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 of novel chemical engineering unit operation of consolidating the heterogeneous diffusion mass transfer universal law of a liquid and being different from traditional separation process that has.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 a 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 granularity 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 (2)
1, a kind of chemical conversion method for preparing of magnetic anion exchange resin, it is characterized in that: with the macroporous type strong-base anion-exchange resin is raw material, its consumption is 10～30%, handles 40～160min through the complexing agent solution impregnation, is 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, be under rotating speed is the stirring at a slow speed of 30～300r/min, to transform 10～60min in the sig water of 1～5mol/L of 20～45% at consumption then, the magnetic anion exchange resin washing that conversion is made with deionized water at last is 5.5～8.5 to its pH, and consumption all is weight percentage.
2,, it is characterized in that described enveloping agent solution comprises that ethylenediamine tetra-acetic acid is received, oxalic acid, tartaric acid, sodium malonate, acetimidic acid by the chemical conversion method for preparing of the described a kind of magnetic anion exchange resin of claim 1; Sig water comprises NaOH NaoH, potassium hydroxide KOH weak solution.
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 CN1233534A (en) | 1999-11-03 |
| CN1077455C true 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) |
Families Citing this family (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 |
| CN107694612B (en) * | 2017-09-05 | 2020-11-24 | 华南理工大学 | Material for removing bromate and precursor thereof in water, and preparation method and application thereof |
| CN107754867B (en) * | 2017-11-17 | 2020-09-11 | 南京大学 | High-mechanical-strength magnetic strong-base anion exchange resin and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268247A (en) * | 1975-12-02 | 1977-06-06 | Rikagaku Kenkyusho | Ferromagnetic synthetic resins |
| US4719241A (en) * | 1985-12-20 | 1988-01-12 | Allied-Signal Inc. | Deionization sorbent comprised of ion exchange resin and polymer binder and ferromagnetic substance |
| US4719242A (en) * | 1985-12-20 | 1988-01-12 | Allied-Signal Inc. | Deionization sorbent comprised of ion exchange resin and polymer binder and ferromagnetic substance |
| CN1053622A (en) * | 1991-01-29 | 1991-08-07 | 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5268247A (en) * | 1975-12-02 | 1977-06-06 | Rikagaku Kenkyusho | Ferromagnetic synthetic resins |
| US4719241A (en) * | 1985-12-20 | 1988-01-12 | Allied-Signal Inc. | Deionization sorbent comprised of ion exchange resin and polymer binder and ferromagnetic substance |
| US4719242A (en) * | 1985-12-20 | 1988-01-12 | Allied-Signal Inc. | Deionization sorbent comprised of ion exchange resin and polymer binder and ferromagnetic substance |
| CN1053622A (en) * | 1991-01-29 | 1991-08-07 | 华南理工大学 | Preparation of magnetic macroporous ion-exchange resin for adsorption |
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| Publication number | Publication date |
|---|---|
| CN1233534A (en) | 1999-11-03 |
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