CN105289554A - Composite resin absorption film - Google Patents
Composite resin absorption film Download PDFInfo
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- CN105289554A CN105289554A CN201510907970.4A CN201510907970A CN105289554A CN 105289554 A CN105289554 A CN 105289554A CN 201510907970 A CN201510907970 A CN 201510907970A CN 105289554 A CN105289554 A CN 105289554A
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Abstract
The invention aims at providing a composite resin absorption film. A preparation method of the composite resin absorption film comprises the following steps: adding a high-molecular polymer into organic solvent, and stirring at 50 to 60 DEG C to form a film casting solution; grounding resin into powder, adding the resin powder into the film casting solution, stirring at 50 to 60 DEG C to form composite slurry of resin and high-molecular polymer; and finally smearing the composite slurry on a glass plate at a room temperature, and immersing the glass plate in deionized water to obtain the composite resin absorption film. By controlling the content of strong alkaline anion exchange resin and polyether sulfone, the absorption capacity is adjusted, and the film strength is controlled; the composite resin absorption film is used for extracting bromine in seawater, the absorption can be completed in 2h, and the absorption rate reaches 90 percent or more.
Description
Technical field
The invention belongs to technical field of membrane, be specifically related to a kind of resin compounded adsorbed film.
Background technology
In the deposit salt mine that the natural resources of bromine are mainly present in seawater, subsurface brine and fossil sea floor and salt lake saline.On the earth, the bromine of about 99% is present in seawater, therefore bromine is otherwise known as " marine element ".In seawater, the content of bromine is about 65mg/L, belongs to the trace element that abundance is larger.Bromine is as a kind of important industrial chemicals, and the miscellaneous bromide derivative by it has special value in national economy and economic development.From seawater, realize the enrichment of bromine, there is important practical value.
It is a kind of new method of rising the 1950's that ion exchange resin puies forward bromine method, has that energy consumption is low, small investment, a feature such as easy to operate.Because the particle diameter of resin sorbent is little, the separating step after experiment is not easy to operate.In addition, this method work period is short, and scavenging period is long, and commercial operability is poor, not yet realizes suitability for industrialized production.
Membrane separation technique is owing to having separation, concentrated, purifying and refining function concurrently, there are again efficient, energy-saving and environmental protection, molecule level is filtered and filter process is simple, be easy to the features such as control, therefore, be widely used at present food, medicine, biology, environmental protection, chemical industry, metallurgy, the energy, oil, water treatment, electronics, the field such as bionical, create huge economic benefit and social benefit.
Therefore, need to seek a kind of simple method, ion-exchange-resin process is combined with membrane separation technique, prepare new type resin composite adsorption film, be applied to extraction and the enrichment of bromine in seawater.
Summary of the invention
The object of this invention is to provide a kind of resin compounded adsorbed film, be namely a kind ofly applied to the extraction of bromine in the aqueous solution and the resin compounded adsorption film material of enrichment, thus make up the deficiencies in the prior art.
Resin compounded adsorbed film of the present invention, its preparation method is as follows:
1) high molecular polymer is joined in organic solvent, after stirring in 50-60 DEG C, make casting solution;
Wherein the mass percent of high molecular polymer and organic solvent is respectively 10-20%, 80-90%.
Described high molecular polymer, as embodiment is preferably polyether sulfone.
Selected organic solvent is the polar solvent of aprotic, has good solubility property to various kinds of resin; Preferred as embodiment is DMA.
2) resin is clayed into power join step 1) in the casting solution prepared, at 50-60 DEG C, stir the composite mortar making resin and high molecular polymer; Wherein the mass percent of resin is 5%-25%.
3) by step 2) composite mortar prepared at room temperature applies on a glass, and submergence in deionized water, obtains resin compounded adsorbed film.
Wherein, the resin in step (2) includes but not limited to strong-base anion-exchange resin.
Preferred as embodiment, described strong-base anion-exchange resin is 201 × 7 or D296R.
Another aspect of this invention, provides the purposes of resin compounded adsorbed film, for the bromide ion extracted and in enriched aqueous solution.
Effect of the present invention and benefit are the practical operation problems solving strong-base anion-exchange resin absorption in industrial practical application, provide the preparation method of composite adsorption film, overcome its displacement, reclaim numerous and diverse difficulty.Advantage of the present invention: (1), by controlling the content of strong-base anion-exchange resin and polyether sulfone, regulates adsorption capacity, controlling diaphragm intensity; (2) be applied to the extraction of bromine in seawater, after 2h, completely, adsorption rate reaches more than 90% in absorption; (3) technique is simple, both can be used for experimental implementation, again can large-scale industrial production.Compare with conventional resins, resin compounded adsorbed film has the advantage of its uniqueness, is easy to recycle and reuse, and is conducive to its industrial applications.
Detailed description of the invention
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
(1) adding polyether sulfone to degree is 12%, and DMA to 88% obtains casting solution in 50-60 DEG C of strong agitation.
(2) by strong-base anion-exchange resin 201 × 7 grinder mill powdered, take 15% degree and add in above-mentioned casting solution, strong agitation 24 hours at 50-60 DEG C, the composite mortar of obtained strong-base anion-exchange resin and polyether sulfone.
(3) be at room temperature evenly coated on clean glass plate by the composite mortar of above-mentioned strong-base anion-exchange resin and polyether sulfone, submergence in deionized water, obtains the resin compounded adsorbed film of thickness 200 μm, is placed in deionized water and preserves.
(4) 0.1g resin compounded adsorbed film is taken for testing the absorption property of bromide ion, at 25 DEG C, the sodium bromide solution of Static Adsorption 50ml concentration 130mg/L is after 2 hours, by ion selective electrode method, recording composite adsorption film to the adsorbance of bromide ion is 145mg/L.
Embodiment 2
(1) adding polyether sulfone to degree is 12%, and DMA to 88% obtains casting solution in 50-60 DEG C of strong agitation.
(2) by strong-base anion-exchange resin D296R grinder mill powdered, take 15% and add in above-mentioned casting solution, strong agitation 24 hours at 50-60 DEG C, the composite mortar of obtained strong-base anion-exchange resin and polyether sulfone.
(3) be at room temperature evenly coated on clean glass plate by the composite mortar of above-mentioned strong-base anion-exchange resin and polyether sulfone, submergence in deionized water, obtains the resin compounded adsorbed film of thickness 200 μm, is placed in deionized water and preserves.
(4) 0.1g resin compounded adsorbed film is taken for testing the absorption property of bromide ion, at 25 DEG C, the sodium bromide solution of Static Adsorption 50ml concentration 130mg/L is after 2 hours, recording composite adsorption film to the adsorbance of bromide ion is 66mg/L, be less than the adsorbance of 201 × 7 resin compounded membrane materials in embodiment 1, adsorption effect is undesirable.
Embodiment 3
(1) adding polyether sulfone to degree is 12%, and 1-METHYLPYRROLIDONE to 88% obtains casting solution in 50-60 DEG C of strong agitation.
(2) by strong-base anion-exchange resin 201 × 7 grinder mill powdered, take 15% and add in above-mentioned casting solution, strong agitation 24 hours at 50-60 DEG C, the composite mortar of obtained strong-base anion-exchange resin and polyether sulfone.
(3) be at room temperature evenly coated on clean glass plate by the composite mortar of above-mentioned strong-base anion-exchange resin and polyether sulfone, submergence in deionized water, obtains the resin compounded adsorbed film of thickness 200 μm, is placed in deionized water and preserves.
(4) 0.1g resin compounded adsorbed film is taken for testing the absorption property of bromide ion, at 25 DEG C, the sodium bromide solution of Static Adsorption 50ml concentration 130mg/L is after 2 hours, recording composite adsorption film to the adsorbance of bromide ion is 53mg/L, be far smaller than the adsorbance of 201 × 7 resin compounded membrane materials in embodiment 1, adsorption effect is undesirable, and the mechanical performance of membrane material is worse than membrane material in embodiment 1 in addition.
Can be found out by above-described embodiment, the resin compounded membrane material adsorption effect that preferred 201 × 7 resins and DMA solvent are made is more excellent.Resin compounded adsorbed film prepared by this law has obvious performance advantage, extracts bromide ion adsorbance and adsorption rate is all very high from the aqueous solution, reaches the effect of bromine enrichment, and preparation method is simple, has very strong feasibility.
Claims (9)
1. a resin compounded adsorbed film, is characterized in that, described resin compounded adsorbed film volume preparation method is as follows:
1) high molecular polymer is joined in organic solvent, after stirring in 50-60 DEG C, make casting solution;
2) resin is clayed into power join step 1) in the casting solution prepared, at 50-60 DEG C, stir the composite mortar making resin and high molecular polymer;
3) by step 2) composite mortar prepared at room temperature applies on a glass, and submergence in deionized water, obtains resin compounded adsorbed film.
2. resin compounded adsorbed film as claimed in claim 1, is characterized in that, described step 1) in the mass percent of high molecular polymer and organic solvent be respectively 10-20% and 80-90%.
3. resin compounded adsorbed film as claimed in claim 1 or 2, it is characterized in that, described high molecular polymer is polyether sulfone.
4. resin compounded adsorbed film as claimed in claim 1 or 2, it is characterized in that, described organic solvent is the polar solvent of aprotic.
5. resin compounded adsorbed film as claimed in claim 1 or 2, it is characterized in that, described organic solvent is DMA.
6. resin compounded adsorbed film as claimed in claim 1, is characterized in that, described step 2) in the mass percent concentration of interpolation of resin be 5%-25%.
7. the resin compounded adsorbed film as described in claim 1 or 6, is characterized in that, described resin is strong-base anion-exchange resin.
8. resin compounded adsorbed film as claimed in claim 7, is characterized in that, described resin is 201 × 7 or D296R.
9. the application of resin compounded adsorbed film according to claim 1 bromide ion in extraction, enriched aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907970.4A CN105289554A (en) | 2015-12-10 | 2015-12-10 | Composite resin absorption film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510907970.4A CN105289554A (en) | 2015-12-10 | 2015-12-10 | Composite resin absorption film |
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| CN105289554A true CN105289554A (en) | 2016-02-03 |
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| CN201510907970.4A Pending CN105289554A (en) | 2015-12-10 | 2015-12-10 | Composite resin absorption film |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646027A (en) * | 1987-06-29 | 1989-01-10 | Daicel Chem | Hydrophilic polyether sulfone polymer |
| CN1973973A (en) * | 2006-11-17 | 2007-06-06 | 天津工业大学 | Hybric organic resin film and its prepn process |
| CN101143304A (en) * | 2007-07-17 | 2008-03-19 | 天津工业大学 | Hollow fiber membrane and its preparing process |
| CN101961648A (en) * | 2010-11-05 | 2011-02-02 | 天津森诺过滤技术有限公司 | Membrane adsorbent for removing heavy metal ions from drinking water effectively and preparation method thereof |
| CN102211018A (en) * | 2011-06-16 | 2011-10-12 | 天津森诺过滤技术有限公司 | Membrane adsorbent for recycling nitrogen and phosphorus resources from waste water as well as preparation method and application thereof |
-
2015
- 2015-12-10 CN CN201510907970.4A patent/CN105289554A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS646027A (en) * | 1987-06-29 | 1989-01-10 | Daicel Chem | Hydrophilic polyether sulfone polymer |
| CN1973973A (en) * | 2006-11-17 | 2007-06-06 | 天津工业大学 | Hybric organic resin film and its prepn process |
| CN101143304A (en) * | 2007-07-17 | 2008-03-19 | 天津工业大学 | Hollow fiber membrane and its preparing process |
| CN101961648A (en) * | 2010-11-05 | 2011-02-02 | 天津森诺过滤技术有限公司 | Membrane adsorbent for removing heavy metal ions from drinking water effectively and preparation method thereof |
| CN102211018A (en) * | 2011-06-16 | 2011-10-12 | 天津森诺过滤技术有限公司 | Membrane adsorbent for recycling nitrogen and phosphorus resources from waste water as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谢宇: "《前途广阔的海洋经济》", 28 February 2004, 原子能出版社 * |
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Application publication date: 20160203 |