CN103127898A - Preparation method of composite material for extracting cesium-137 - Google Patents
Preparation method of composite material for extracting cesium-137 Download PDFInfo
- Publication number
- CN103127898A CN103127898A CN2011103803817A CN201110380381A CN103127898A CN 103127898 A CN103127898 A CN 103127898A CN 2011103803817 A CN2011103803817 A CN 2011103803817A CN 201110380381 A CN201110380381 A CN 201110380381A CN 103127898 A CN103127898 A CN 103127898A
- Authority
- CN
- China
- Prior art keywords
- manufacture method
- composite
- solution
- extracting
- caesium
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000003756 stirring Methods 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 9
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims abstract description 9
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims abstract description 9
- YVBOZGOAVJZITM-UHFFFAOYSA-P ammonium phosphomolybdate Chemical compound [NH4+].[NH4+].[NH4+].[NH4+].[O-]P([O-])=O.[O-][Mo]([O-])(=O)=O YVBOZGOAVJZITM-UHFFFAOYSA-P 0.000 claims abstract description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 6
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 238000012216 screening Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000001556 precipitation Methods 0.000 claims description 8
- 239000011236 particulate material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- JQLZABHNCZQFNR-UHFFFAOYSA-J O.[Cl-].[Cl-].[Cl-].[Cl-].Cl.Cl.[Zr+4] Chemical compound O.[Cl-].[Cl-].[Cl-].[Cl-].Cl.Cl.[Zr+4] JQLZABHNCZQFNR-UHFFFAOYSA-J 0.000 claims description 2
- 229940010552 ammonium molybdate Drugs 0.000 claims description 2
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 2
- 239000011609 ammonium molybdate Substances 0.000 claims description 2
- QLULGSLAHXLKSR-UHFFFAOYSA-N azane;phosphane Chemical compound N.P QLULGSLAHXLKSR-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000012153 distilled water Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 7
- 229910052792 caesium Inorganic materials 0.000 abstract description 6
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 2
- 230000001376 precipitating effect Effects 0.000 abstract 2
- 239000010954 inorganic particle Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 10
- 238000009826 distribution Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000003463 adsorbent Substances 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 230000002285 radioactive effect Effects 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 5
- 238000003795 desorption Methods 0.000 description 5
- 239000000284 extract Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000002927 high level radioactive waste Substances 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010808 liquid waste Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000019155 Radiation injury Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Images
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a preparation method of a composite material for extracting cesium-137, which is simple to operate. The method comprises the following steps: after dissolving zirconium oxychloride, stirring the zirconium oxychloride and the phosphoric acid solution; (2) standing, precipitating, filtering and drying to obtain zirconium phosphate; (3) dissolving ammonium phosphomolybdate with nitric acid solution; (4) adding zirconium phosphate into ammonium phosphomolybdate solution, and stirring; (5) standing, precipitating, filtering, washing and drying to obtain an inorganic particle material; (6) and (3) granulating by using a binder, drying to constant weight, grinding and screening to obtain the composite material. The method is simple to operate, and the conditions are easy to control; the material has high selectivity to Cs and is easy to desorb; the particle has high mechanical strength and meets the requirement of extracting cesium by column operation.
Description
Technical field
The present invention relates to the radionuclide separation field, be specifically related to a kind of composite manufacture method of extracting caesium-137.
Background technology
137Cs is one of most important fission product, its long half time (T
1/2=30.17a), branching ratio is high, and ray energy moderate (662keV) can be used as various radioactive sources.Therefore, its distribution is very extensive, is present in spentnuclear fuel post processing waste liquid, the places such as nuclear power operation waste liquid, the retired waste liquid of nuclear facilities decontamination and laboratory waste liquid.Cs is in the 6th cycle I A family of the periodic table of elements, is easy to lose electronics, forms stable monovalent cation, is all monovalence in nearly all compound.Therefore,
137Cs is easy to entered environment.
137Cs is as medium radiotoxicity nucleic, in case entered environment is very large to the mankind's harm.Therefore, in order to guarantee human health, Environmental security, reduction refuse volume and disposal costs, must be right
137Cs processes.On the other hand,
137Cs is due to its special radio chemistry character and nulcear properties, and the extensive use nuclear technology field is perhaps as various radioactive sources.At present, China
137The Cs standardized radioactive solution is basically all from external import, and this is mainly because China is also not good
137The Cs extractive technique.Therefore, mention from nuclear waste
137Cs not only can solve radioactivity to the threat of environment, can also prepare for China provides standardized radioactive solution, creates good economic benefit.
At present,
137The processing method of Cs mainly contains: the precipitation method, volatility process, extraction and ion-exchange.But, about
137Extractive technique difference and the treatment technology of Cs, its requirement
137Cs extracts from various complex environments, and this is a kind of is difficult point and the emphasis of countries in the world research.
Summary of the invention
Purpose of the present invention: a kind of composite manufacture method that extraction caesium simple to operate is provided.The composite that hope prepares by the method has certain granularity, and mechanical strength is large, can carry out column operation, can be used in from radioactive liquid waste and extracts
137Cs.
For achieving the above object, the present invention adopts following technical scheme:
A kind of composite manufacture method of extracting caesium-137, the method comprises the following steps:
(1) water dissolved oxygen zirconium chloride, and then add phosphoric acid solution to stir;
(2) standing, precipitation, filter, and will precipitate oven dry, obtain basic zirconium phosphate;
(3) with salpeter solution dissolved phosphorus ammonium molybdate;
(4) basic zirconium phosphate that obtains is joined in ammonium phosphomolybdate solution, stir;
(5) standing, precipitation, filter, then use the distilled water washing precipitation, then oven dry obtains inorganic particulate material;
(6) stir with binding agent and ground inorganic particulate material and carry out granulation, then dry constant weight, grind, screening can obtain composite.
The molar ratio of the described phosphoric acid of step (1) and zirconium oxychloride is 1: 2～2: 1.
The described bake out temperature of step (2) is controlled between 120～130 ℃.
The concentration of the described salpeter solution of step (3) is 1～3mol/L, and optium concentration is 3mol/L;
The weight ratio of the described basic zirconium phosphate of step (4) and ammonium phosphomolybdate is about 1: 1.
The described washing process of step (5) will constantly be measured the pH value of cleaning solution, and during only to pH=4, washing could finish.
The described bake out temperature of step (5) is controlled between 50～60 ℃.
The described binding agent of step (6) is the aqueous solution of polyvinyl alcohol, and wherein to account for the percentage by weight of total composite be 2%～10% to polyvinyl alcohol.
The described bake out temperature of step (6) is between 50～60 ℃.
The beneficial effect that the present invention obtains: (1) this material has very high selective to Cs, its Kd to Cs＞10
4Ml/g satisfies from complex system and separates, extracts
137The requirement of Cs; What (2) this synthetic method related to is simple to operate, and synthetic preparation condition is easily controlled; (3) composite material granular for preparing by the method is large, can grind screening and obtain different particle diameters; (4) this particle mechanical strength is large, is not hydrolyzed the phenomenon of blocking absorption in the column operation process; (5) this composite absorption
137After Cs, desorb is convenient, only needs to adopt ammonium salt drip washing get final product, if employing ammonium chloride carries out desorb simultaneously, after desorb, solution is evaporated remove can obtain after ammonium chloride pure
137The Cs aqueous solution.
Description of drawings
Fig. 1 is a kind of process flow diagram that extracts the composite manufacture method of caesium-137 of the present invention.
Fig. 2 is for the composite of a kind of composite manufacture method of extracting caesium-137 of the present invention pair
137The curve that the distribution ratio of Cs changes with ammonium concentration.
Fig. 3 is for the composite of a kind of composite manufacture method of extracting caesium-137 of the present invention pair
137The curve that the adsorption rate of Cs changes with ammonium concentration.
Specific embodiment
Describe a kind of composite manufacture method of extracting caesium-137 of the present invention in detail below in conjunction with Figure of description and specific embodiment.
Accurately take the 32.2g zirconium oxychloride in the beaker of 1000mL with electronic balance, then add the 100ml deionized water with the zirconium oxychloride dissolve complete.Then sampler is got the phosphoric acid of 10ml 85%, slowly adds in beaker, approximately stirs 2h and fully reacts.Then, static approximately 4h at room temperature, supernatant inclines.Then, be precipitated with vacuum filtration machine suction filtration under the vacuum of 0.1MPa.At last, precipitation is positioned in thermostatic drying chamber 120-130 ℃ dries to constant weight, obtain basic zirconium phosphate ZrP particle.
Accurately take in the clean beaker of 25g ammonium phosphomolybdate (AMP) as for 1000ml with electronic balance, the salpeter solution that then measures 200ml 3mol/L with graduated cylinder is poured in beaker, then stirs with glass bar, and it is fully dissolved.Then again with electronic balance accurately take 25g with the synthetic ZrP particle of said method in beaker, constantly stir about 4h, follow standing 12 hours.Then, be precipitated with suction filtration machine suction filtration under the vacuum of 0.1MPa.Then will precipitate constantly with the deionized water washing, wash to filtrate pH=4 only.Then 50-60 ℃ of oven dry constant weight will be deposited in and inorganic particulate material can be obtained.Above-mentioned inorganic particulate material is fully ground, stand-by.
Accurately take the 1g polyvinyl alcohol in the clean beaker of a 50mL, then add wherein the deionized water of 90～100 ℃ of about 15mL, constantly stir with stirring rod, make particulate polyethylene alcohol dissolve complete, become thick clear solution.At last, will add in beaker with the inorganic particulate material 20g of said method preparation, mix with stirring rod, carry out granulation.During granulation, can adopt the spherical mould moulding of diameter, then with mould as for the baking oven inner heating drying, also can be directly with the composite material that stirs as for drying in oven.Can obtain described composite A MP-ZrP at last, then according to particle size grinding, screening.In reality, two kinds of prilling process are all attempted, and the composite material granular character that obtains is as broad as long.
In order to extract
137We have carried out Cs the composite for preparing
137The Cs experimental study.
At first, we have measured in the simulation highly active waste
137The distribution coefficient Kd of Cs determines whether it has very high selective, and concrete experimental technique is as follows:
1, the high simulated waste of putting of preparation
Take 188.4gAl (NO
3)
39H
2O uses 3mol/L HNO
3Heating for dissolving after dissolve complete, then adds 52.9g Fe (NO in beaker
3)
39H
2O, dissolve complete, then add successively 118.2g NaNO
3, 44.87gNi (NO
3)
26H
2O, 0.88g KNO
3Dissolve complete to the mixed solution.Then accurately take 0.88gSr (NO
3)
2Use 3mol/L HNO
3After heating for dissolving, join in mixed liquid, separately get 2.12g (NH
4)
6Mo
7O
244H
2The O heating adds in mixed liquor after melting fully, and then pipettes 32mL 30g/L Ba (NO
3)
2Solution pipettes 0.69mL 9mol/LH in mixed solution
2SO
4Solution accurately takes 0.265gK in mixed solution
2HPO
4Be added in feed liquid, dissolve complete is used 3mol/L HNO at last
3Be diluted to 500mL.
At last, add 10ml in this solution
137Cs solution mixes, and gets 1mL and measures its radioactive activity as standard liquid.Table 1 has provided the composition of this simulated high-level radioactive waste.
The chemical constituent of table 1 simulated high-level radioactive waste
2, the mensuration of Kd value
(1) accurately take 0.1g with electronic balance and sieve 80-100 purpose adsorbent in the centrifuge tube of 15mL with standard screen;
(2) add 10m simulated emission solution respectively in centrifuge tube with sampler, and the approximately 2min that vibrates;
(3) the about 4h of static absorption then, the centrifugal 30min of 3000rpm on centrifuge;
(4) supernatant of getting respectively 1mL with sampler is built lid in measuring bottle; Sample is measured on the NaI detector, obtained distribution ratio according to formula (1).
The computing formula of distribution ratio D is as follows:
In formula:
The distribution ratio of D---nucleic on adsorbent, ml/g;
C
0---in initial soln, the activity of nucleic, Bq/ml;
C
L---in final state solution, the activity of nucleic, Bq/ml;
V
L---the volume of solution, ml;
m
S---the quality of adsorbent, g;
According to the method described above, measured in simulated high-level radioactive waste this composite the Kd value of Cs has been about 1.75 * 10
4Ml/g.This illustrates selectively very high to Cs of this material, therefore, is fit to and extracts caesium from contain the caesium waste liquid.
In order to extract from high activity liquid waste
137Cs is upper outside except needs are adsorbed onto composite to Cs, also its desorb from the composite will be got off.Many inorganic material all have selective preferably to Cs, can adsorb well Cs, but but have no idea the desorb from the sorbing material of the caesium that gets on of absorption is got off, and this is the difficult point place of extracting at present caesium.Therefore, we have carried out the desorb research of Cs with the composite that we synthesize with ammonium chloride solution.
At first, our selective chlorination ammonium salt solution is as its stripping workshop;
Secondly, in order to verify the desorption effect of this solution, select most suitable stripping liquid.Therefore, we have carried out following experiment:
(1), accurately take AM-ZrP adsorbent that 0.1g prepares in the centrifuge tube of 15ml;
(2), the NH that adds the 9ml variable concentrations in the centrifuge tube
4Cl solution;
(3), add 1ml
137Cs solution is got 1ml simultaneously as standard sample;
(4), with the about 2min of hand vibration centrifuge tube, Cs solution and ammonium chloride solution are mixed standing 24h;
(5), on centrifuge the centrifugal 15min of 3000rpm, get supernatant its specific activity of measurement in liquid dodges bottle, obtain distribution coefficient under different condition and the adsorption rate of Cs, experimental result sees Table 3 and Fig. 2-3.
Table 3 ammonium chloride concentration is to the Cs Adsorption Effect
From Fig. 2-3 as can be known, there is no NH
4 +During ionization, the very high approximately 2.07E+04ml/g of the distribution ratio of Cs on adsorbent, adsorption rate is about 100%.But, when NH is arranged
4 +When ion existed, the distribution ratio of Cs just descended rapidly, [NH
4 +During]=0.1mol/l, D=3.64E+02＜＜2.07E+04ml/g.This shows NH
4 +Ion pair Cs
+Has very high competitiveness.As can be known from Figure, along with NH
4 +The increase adsorption rate of ion concentration is more and more lower, as [NH
4 +During]=2.0mol/l, the adsorption rate of Cs only 26%.NH is adopted in this explanation
4 +Ion well desorption absorption on the AMP-ZrP
137Cs.
As can be seen from Figure 2 along with NH
4 +The increase adsorption rate of ion concentration descends gradually, but the speed that descends is also reducing, it is not just very large changing later at 2.0mol/l, and the adsorption rate of Cs is 26% almost can think and do not adsorb, because this 26% is likely that specific area due to absorbent particles causes.In order to improve desorption effect, we can improve NH when actual column operation
4 +The concentration of ion also coordinates desorption effect better with certain density nitric acid or hydrochloric acid.4.0mol/L NH is adopted in suggestion
4Cl or 1.5mol/LHNO
3-4.0mol/L NH
4NO
3Desorb.Adopt NH
4Cl is follow-up can adopt simple evaporation to remove fast ammonium salt in stripping liquid, and does not have other cations.
The composite A MP-ZrP mechanical strength synthetic with this method is high, can adapt to the requirement of column operation.What relate in building-up process is simple to operate, and preparation condition is convenient to control.Synthetic composite has very high selective to Cs, can with the ammonium ion Cs that gets on of desorption absorption easily, can obtain purer Cs solution simultaneously.
Upper example is only the whole technical process of this invention for convenience of explanation and the measuring method of preparation and Kd value; be not limited only to this example; as long as in the scope of this claims; or those skilled in the art simply change or the variation of parameter just can realize the protection category that just belongs to this patent that this adsorbent is synthetic, just are limited to experiment parameter and content will not enumerate too much.
Claims (9)
1. a composite manufacture method of extracting caesium-137, is characterized in that, the method comprises the following steps:
(1) water dissolved oxygen zirconium chloride, and then add phosphoric acid solution to stir;
(2) standing, precipitation, filter, and will precipitate oven dry, obtain basic zirconium phosphate;
(3) with salpeter solution dissolved phosphorus ammonium molybdate;
(4) basic zirconium phosphate that obtains is joined in ammonium phosphomolybdate solution, stir;
(5) standing, precipitation, filter, then use the distilled water washing precipitation, then oven dry obtains inorganic particulate material;
(6) stir with binding agent and ground inorganic particulate material and carry out granulation, then dry constant weight, grind, screening can obtain composite.
2. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the molar ratio of the described phosphoric acid of step (1) and zirconium oxychloride is 1: 2～2: 1.
3. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the described bake out temperature of step (2) is controlled between 120～130 ℃.
4. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the concentration of the described salpeter solution of step (3) is 1～3mol/L, and optium concentration is 3mol/L.
5. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the weight ratio of the described basic zirconium phosphate of step (4) and ammonium phosphomolybdate is about 1: 1.
6. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the described washing process of step (5) will constantly be measured the pH value of cleaning solution, and during only to pH=4, washing could finish.
7. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the described bake out temperature of step (5) is controlled between 50～60 ℃.
8. a kind of composite manufacture method of extracting caesium-137 according to claim 1, it is characterized in that, the described binding agent of step (6) is the aqueous solution of polyvinyl alcohol, and wherein to account for the percentage by weight of total composite be 2%～10% to polyvinyl alcohol.
9. a kind of composite manufacture method of extracting caesium-137 according to claim 1, is characterized in that, the described bake out temperature of step (6) is between 50～60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103803817A CN103127898A (en) | 2011-11-25 | 2011-11-25 | Preparation method of composite material for extracting cesium-137 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103803817A CN103127898A (en) | 2011-11-25 | 2011-11-25 | Preparation method of composite material for extracting cesium-137 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103127898A true CN103127898A (en) | 2013-06-05 |
Family
ID=48488725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103803817A Pending CN103127898A (en) | 2011-11-25 | 2011-11-25 | Preparation method of composite material for extracting cesium-137 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103127898A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319849A (en) * | 2001-02-27 | 2001-10-31 | 中国原子能科学研究院 | For removing radioactive waste liquid137Composite adsorbent for Cs and preparation process thereof |
| US6534435B1 (en) * | 2001-09-26 | 2003-03-18 | Council Of Scientific And Industrial Research | Process for in situ synthesis of supported heteropoly acids and salts thereof |
| CN102114403A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院生态环境研究中心 | Compound arsenic-removing adsorbent and preparation method thereof |
| CN102114401A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院生态环境研究中心 | Arsenic removal adsorbent and preparation method thereof |
-
2011
- 2011-11-25 CN CN2011103803817A patent/CN103127898A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319849A (en) * | 2001-02-27 | 2001-10-31 | 中国原子能科学研究院 | For removing radioactive waste liquid137Composite adsorbent for Cs and preparation process thereof |
| US6534435B1 (en) * | 2001-09-26 | 2003-03-18 | Council Of Scientific And Industrial Research | Process for in situ synthesis of supported heteropoly acids and salts thereof |
| CN102114403A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院生态环境研究中心 | Compound arsenic-removing adsorbent and preparation method thereof |
| CN102114401A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院生态环境研究中心 | Arsenic removal adsorbent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 邓启民等: "磷酸锆-磷钼酸铵复合离子交换剂提取铯", 《核动力工程》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Rapid and selective capture of perrhenate anion from simulated groundwater by a mesoporous silica-supported anion exchanger | |
| Talvitie | Radiochemical determination of plutonium in environmental and biological samples by ion exchange | |
| Gaur | Determination of Cs-137 in environmental water by ion-exchange chromatography | |
| JP5922193B2 (en) | NOVEL ADSORBENT, METHOD FOR PRODUCING THE SAME AND USE THEREOF | |
| Wu et al. | Synergistic adsorption behavior of a silica-based adsorbent toward palladium, molybdenum, and zirconium from simulated high-level liquid waste | |
| CN103344982A (en) | Radiochemical analyzing method of Sr-90 in soil | |
| CN103589866B (en) | Separation and recovery method for thorium and uranium by using silicon-based anion exchange resin | |
| Gomaa et al. | Green extraction of uranium (238U) from natural radioactive resources | |
| CN110923480B (en) | Application of aminoimidazole type ionic liquid loaded resin in adsorption separation of rhenium or technetium | |
| US4720422A (en) | Material for collecting radionuclides and heavy metals | |
| Chandramouleeswaran et al. | Boroaluminosilicate glasses: novel sorbents for separation of Th and U | |
| CN103788301A (en) | Preparation method of chelation microspheres for adsorbing neodymium | |
| Remenec | The selective separation of 90Sr and 99Tc in nuclear waste using molecular recognition technology products | |
| Takahashi et al. | Multitracer study on the effect of humate formation on the adsorption behavior of metal ions on kaolinite and silica gel | |
| CN103127898A (en) | Preparation method of composite material for extracting cesium-137 | |
| CN108051283A (en) | The extraction of trace neptunium element and separation method in a kind of fluid sample | |
| CN106140108B (en) | Polyantimonic acid/polyacrylonitrile composite ion exchanger and preparation method and application thereof | |
| CN110327872B (en) | Functional graphite-phase carbon nitride material and preparation method and application thereof | |
| Inoue | Studies on the synthetic inorganic ion exchangers—I: Synthesis of stannic phosphate and some of its properties | |
| Kyriakou et al. | Application of different types of resins in the radiometric determination of uranium in waters | |
| Venkatesan et al. | Sorption of radioactive strontium on a silica-titania mixed hydrous oxide gel | |
| Wood et al. | Column chromatographic separation of Y3+ from Sr2+ by polymeric ionizable crown ether resins | |
| Rao et al. | Characterization of europium (III) carbonate complexes in simulated groundwater by solvent extraction | |
| Ghosh et al. | Sorption study of long-lived 94Nb on laterite: Effects of physicochemical parameters on sorption | |
| Teranishi et al. | 113 Sn-113m In generator with a glass beads column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |