CN101323906A - Method for separating heating element Sr and metal element Ba from high-level waste - Google Patents
Method for separating heating element Sr and metal element Ba from high-level waste Download PDFInfo
- Publication number
- CN101323906A CN101323906A CNA2008101201712A CN200810120171A CN101323906A CN 101323906 A CN101323906 A CN 101323906A CN A2008101201712 A CNA2008101201712 A CN A2008101201712A CN 200810120171 A CN200810120171 A CN 200810120171A CN 101323906 A CN101323906 A CN 101323906A
- Authority
- CN
- China
- Prior art keywords
- heating element
- chromatographic column
- macro
- lining
- polymkeric substance
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 239000002927 high level radioactive waste Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title description 2
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 25
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002594 sorbent Substances 0.000 claims abstract description 19
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 20
- 239000011148 porous material Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 9
- 238000001291 vacuum drying Methods 0.000 claims description 8
- 239000003463 adsorbent Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- CHRJZRDFSQHIFI-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;styrene Chemical compound C=CC1=CC=CC=C1.C=CC1=CC=CC=C1C=C CHRJZRDFSQHIFI-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 8
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 8
- 229910052788 barium Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000002915 spent fuel radioactive waste Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910052768 actinide Inorganic materials 0.000 description 3
- 150000001255 actinides Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 239000003758 nuclear fuel Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- PRJNEUBECVAVAG-UHFFFAOYSA-N 1,3-bis(ethenyl)benzene Chemical compound C=CC1=CC=CC(C=C)=C1 PRJNEUBECVAVAG-UHFFFAOYSA-N 0.000 description 1
- WEERVPDNCOGWJF-UHFFFAOYSA-N 1,4-bis(ethenyl)benzene Chemical compound C=CC1=CC=C(C=C)C=C1 WEERVPDNCOGWJF-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 229940095054 ammoniac Drugs 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- ISAOCJYIOMOJEB-UHFFFAOYSA-N desyl alcohol Natural products C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- UETZVSHORCDDTH-UHFFFAOYSA-N iron(2+);hexacyanide Chemical compound [Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] UETZVSHORCDDTH-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical compound CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- SGZRFMMIONYDQU-UHFFFAOYSA-N n,n-bis(2-methylpropyl)-2-[octyl(phenyl)phosphoryl]acetamide Chemical compound CCCCCCCCP(=O)(CC(=O)N(CC(C)C)CC(C)C)C1=CC=CC=C1 SGZRFMMIONYDQU-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- -1 phthalic acid ester Chemical class 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a method for separating a heating element of Sr and a metallic element of Ba from high-level wastes, comprising the following steps: (1) the concentration of nitric acid in a nitrate solution containing the heating element of Sr and the metallic element of Ba is adjusted to 0.5 to 4 mol/L; (2) after adjusting the concentration of nitric acid, the nitrate solution flows through a chromatographic column filled with a sorbent; the heating element of Sr is adsorbed by the filled sorbent while the metallic element of Ba flows out; (3) chromatographic column adsorbing the heating element of Sr is washed by deionized water and the heating element of Sr is washed out in a form of nitrate. The method of the invention has the advantages of good separation effect, strong preferential adsorption of the sorbent and being capable of separating the heating element of Sr and the metallic element of Ba from the high-level wastes thoroughly.
Description
Technical field
The present invention relates to separating of heating element Sr and metallic element Ba in aftertreatment field, the especially high-level waste of nuclear industry high-level waste.
Background technology
As the high-level waste (HLLW) that spent fuel (SF) aftertreatment produces, processing that it is safe and disposal are one of nuclear fuel cycle technology key link.According to national nuclear power development policies, rational and effective is utilized limited nuclear resource, is guaranteed security, nuclear non-proliferation, environmental compatibility, economy and be its basic principle by the effective treatment and disposal HLLW of spent fuel post-processing technology.
Contain heating element, the inferior actinide elements sliver products (FP) such as (MA) of long lifetime (millions of years) in the spent fuel, the present situation of aftertreatment is: except Separation and Recovery useful metal U and Pu, a part of Np and similar all FP elements have all entered among the HLLW.For long-life MA, separation/transmuting technology has been proposed and for reaching some extracting and separating flow processs that this purpose develops (having used the TRUEX flow process of CMPO and DIAMEX flow process that France has used ammoniac compounds etc. such as the U.S.), even but few to the Separation and Recovery of heating element Cs and Sr.
Cs the earliest and Sr Separation Research are from U.S. France and Japan.With regard to its isolation technique, mainly contain absorption method and solvent extration.Present Cs absorption method research mainly concentrates on inorganic adsorbent aspects such as silico-aluminate, titanate and the insoluble hexacyanoferrate.Yet, for reducing in the strongly acidic solution because of H
+Competitive adsorption and the serious Cs absorption that hinders, neutralization, denitration are essential as pre-treatment, cause processing costs and secondary refuse significantly to increase, and its slow adsorption rate, are difficult to reach effective separation of Cs.
The Cs of Separation and Recovery and Sr both can be used as line source and also can be used as thermal source and be used effectively in medical treatment ﹠ health health care system.In addition, Separation and Recovery Sr from HLLW can make vitrification body quantity significantly reduce; Spent fuel cooling period significantly shortens; Bear the viewpoint of reduction, utilization of resources from economy raising, the ecotope of HLLW treatment and disposal, meaning of crucial importance is also arranged, significant contribution is arranged constructing innovative nuclear fuel cycle system.
Document number is to disclose a kind of high-level waste treatment process among the U.S.'s patent of invention of US6843921B2 and the English Patent GB3290474 of the same clan, and high-level waste is made salpeter solution, also contains the HNO of 3 mol in the solution
3, this solution is isolated time actinide elements after chromatographic column is separated.Chinese patent application CN101143273 discloses a kind of method from high-level waste separating heating element Cs and Sr, in the nitrate solution of the high-level waste of isolating time actinide elements, add concentrated nitric acid and adjust concentration of nitric acid, this solution is isolated Cs and Sr successively through twice chromatographic column fractionation by adsorption.But in this method, heating element Sr and metallic element Ba are by chromatographic column selective adsorption simultaneously, and in the solution of chromatographic column after deionized water drip washing, Sr and Ba element are present in this nitrate solution simultaneously, and metallic element barium also must carry out further separating treatment.
Summary of the invention
The invention provides the separating heating element Sr from high-level waste of a kind of good separating effect, environmental protection and the method for metallic element Ba.
A kind of from high-level waste the method for separating heating element Sr and metallic element Ba, may further comprise the steps:
(1) concentration of nitric acid that will contain in the nitrate solution of heating element Sr and metallic element Ba transfers to 0.5~4 mol;
Can adjust with concentrated nitric acid when adjusting concentration of nitric acid.
The described nitrate solution that contains heating element Sr and metallic element Ba can from but be not limited only to the nitrate solution that contains heating element Sr and metallic element Ba that obtains among the comfortable Chinese patent application CN101143273.
(2) nitrate solution that will adjust behind the nitrate concentration flows through the chromatographic column that is filled with sorbent material, and heating element Sr is filled with the chromatographic column absorption of sorbent material, and metallic element Ba (with the form of nitrate) flows out chromatographic column.
(3) be adsorbed with the chromatographic column of Sr element with deionized water drip washing, the Sr element washes out with the form of nitrate.
In order to strengthen separating effect, between step (2) and (3), be the pre-drip washing chromatographic column of nitric acid of 1~2 mol with volumetric molar concentration, the Ba element is leached out fully.
Test shows that the chromatographic column that is filled with sorbent material only has the selection adsorptive power at heating element Sr.The nitrate solution that contains heating element Sr and metallic element Ba separates through the chromatographic column selective adsorption, and heating element Sr is separated with metallic element Ba.
In the chromatographic column adsorbents adsorb saturated after, can wash by water, heating element Sr can be got off to finish living again of chromatographic column with the form drip washing of nitrate.
Described sorbent material raw material consists of the macro-pore SiO that loads on the lining polymkeric substance
2On suc as formula the N shown in (I), N, N`, N`-four octyl groups-3-oxygen penta-1,5-diamide (TOOD), the lining polymkeric substance macro-pore SiO
2Quality be 1~20 times of quality of TOOD, preferred 5~15 times.
The macro-pore SiO of described lining polymkeric substance
2Preferred SiO
2-vinylbenzene-divinyl benzene polymers.
Described sorbent material prepares by the following method:
TOOD is dissolved in the methylene dichloride, adds the macro-pore SiO of lining polymkeric substance then
2Stir, obtain sorbent material after the vacuum-drying.
Before vacuum-drying, because initial stage methylene dichloride content is more, the load of vacuum pump when alleviating later stage vacuum-drying, can under normal pressure, stir about 45 ℃ earlier, make methylene dichloride volatilization most of to material to nearly dried state, and then nearly the material of dried state at 45-50 ℃ of following vacuum-drying 24h.
The macro-pore SiO of described lining polymkeric substance
2(SiO
2-P) be a class novel inorganic/organic carrier, the macro-pore SiO of lining polymkeric substance is disclosed in the U.S. Pat 6843921
2(SiO
2-P), SiO
2-P is a kind of organic high polymers complex carrier that contains the porous silica carrier granule, and its preparation method is:
(1) with the SiO of macropore
2Be washed till neutrality with concentrated nitric acid washing, suction filtration, deionized water, repeat 10 surplus time, drying.
(2) vacuum and having under the argon shield condition is a solvent with glyceryl trichloride and m-dimethylbenzene, to macro-pore SiO
2The middle m/p-formyloxy vinylbenzene that adds 48.7g, 8.9g the m/p-Vinylstyrene, 72.2g dioctyl faces phthalic acid ester, 54.0g benzoin methyl acid sodium, 0.56g α, α-even bis-isobutyronitrile and 0.57g 1,1 '-even dicyclohexyl amine-1-nitrile, progressively be heated to 90 ℃ by room temperature, and kept 13 hours, afterwards, progressively be cooled to room temperature.
(3) use acetone and methanol wash, the above-mentioned product of suction filtration respectively, repeat 10 surplus time, drying.
The inventive method good separating effect, sorbent material select adsorptivity strong, can more completely heating element Sr in the high-level waste and metallic element Ba be separated.
Description of drawings
Fig. 1 is the inventive method schematic flow sheet;
Fig. 2 is for after utilizing sorbent material of the present invention and being filled into chromatography column, utilizes liquid chromatography to carry out the spectrogram that separates of heating element Cs and Sr in the high-level waste (HLLW);
X-coordinate: the quality of expression effluent;
Ordinate zou (left side): concentration of metal ions in the expression effluent;
Ordinate zou (right side): expression pH value.
Embodiment
100 gram TOOD are dissolved in the 500mL methylene dichloride, mix; The macro-pore SiO that adds 200 gram lining polymkeric substance
2(SiO
2-P) stir and make methylene dichloride volatilization most of to material to nearly dried state, and then nearly the material of dried state at 45 ℃ of following vacuum-drying 24h.
100 gram TOOD are dissolved in the 2000mL methylene dichloride, mix; The macro-pore SiO that adds 1000 gram lining polymkeric substance
2(SiO
2-P) stir and make methylene dichloride volatilization most of to material to nearly dried state, and then nearly the material of dried state at 45 ℃ of following vacuum-drying 24h.
100 gram TOOD are dissolved in the 3000mL methylene dichloride, mix; The macro-pore SiO that adds 1500 gram lining polymkeric substance
2(SiO
2-P) stir and make methylene dichloride volatilization most of to material to nearly dried state, and then nearly the material of dried state at 45 ℃ of following vacuum-drying 24h.
Heating element Sr and Summoning element B a's separates in the high-level waste
The sorbent material of embodiment 1 preparation is filled in the chromatographic column chromatographic column adopting Glass tubing, 1 centimetre of internal diameter, 1.2 centimetres of external diameters, 30 centimetres of height.
Flow rate of mobile phase generally is 1.0 ml/min.
(1) be that the disclosed flow process of Chinese invention patent application of CN101143273 is made nitrate solution with high-level waste and carried out separating of heating element Cs and Sr according to document number, the chromatographic column of wherein adsorbing Sr adds the nitrate solution that obtains containing Sr and Ba after hydrolysis is analysed, contain in the nitrate solution of Sr and Ba, the concentration of Sr and Ba is 0.5 mol, with concentrated nitric acid the concentration of nitric acid in this nitrate solution is adjusted into 4 mol;
(2) nitrate solution that will adjust the high-level waste behind the concentration of nitric acid is by being filled with the chromatographic column of sorbent material, and heating element Sr is filled with the chromatographic column absorption of sorbent material, and Ba flows out
(3) in the chromatographic column adsorbents adsorb saturated after, separating of Sr and Ba in the regeneration of getting off to finish chromatographic column and the high-level waste resolved heating element Sr by water with the form drip washing of nitrate.
Owing to be the nitrate solution system, described Sr and Ba all refer to ionic forms in the sepn process of the present invention.
Claims (4)
1. the method for separating heating element Sr and metallic element Ba from a high-level waste may further comprise the steps:
(1) concentration of nitric acid that will contain in the nitrate solution of heating element Sr and metallic element Ba transfers to 0.5~4 mol;
(2) nitrate solution that will adjust behind the concentration of nitric acid flows through the chromatographic column that is filled with sorbent material, the adsorbents adsorb that heating element Sr is loaded, and metallic element Ba flows out;
(3) be adsorbed with the chromatographic column of heating element Sr with deionized water drip washing, the Sr element washes out with the form of nitrate;
Described sorbent material is for loading on the macro-pore SiO of lining polymkeric substance
2N, N, N ', N '-four octyl groups-3-oxygen penta-1, the 5-diamide, the lining polymkeric substance macro-pore SiO
2Quality be N, N, N ', N '-four octyl groups-3-oxygen penta-1,1~20 times of the quality of 5-diamide; The macro-pore SiO of described lining polymkeric substance
2Be SiO
2-vinylbenzene-divinyl benzene polymers.
2. the method for claim 1 is characterized in that, is the pre-drip washing chromatographic column of nitric acid of 1~2 mol with volumetric molar concentration earlier in step (3), and the Ba element is leached out fully; Be adsorbed with the chromatographic column of Sr element again with deionized water drip washing, the form of Sr element with nitrate washed out.
3. the method for claim 1 is characterized in that, the macro-pore SiO of lining polymkeric substance in the described sorbent material
2Quality be N, N, N ', N '-four octyl groups-3-oxygen penta-1,5~15 times of the quality of 5-diamide.
4. as claim 1,2 or 3 described methods, it is characterized in that described sorbent material prepares by the following method:
With N, N, N ', N '-four octyl groups-3-oxygen penta-1, the 5-diamide is dissolved in the methylene dichloride, adds the macro-pore SiO of lining polymkeric substance then
2Stir, obtain sorbent material after the vacuum-drying.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2008101201712A CN101323906A (en) | 2008-07-31 | 2008-07-31 | Method for separating heating element Sr and metal element Ba from high-level waste |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA2008101201712A CN101323906A (en) | 2008-07-31 | 2008-07-31 | Method for separating heating element Sr and metal element Ba from high-level waste |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101323906A true CN101323906A (en) | 2008-12-17 |
Family
ID=40187607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2008101201712A Pending CN101323906A (en) | 2008-07-31 | 2008-07-31 | Method for separating heating element Sr and metal element Ba from high-level waste |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101323906A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101690853B (en) * | 2009-10-19 | 2011-10-19 | 浙江大学 | Method for separating element Pd from high-level radioactive waste |
CN102614683A (en) * | 2012-04-05 | 2012-08-01 | 浙江大学 | Method for separating element palladium and sub-actinide elements from high-level waste |
CN105148732A (en) * | 2015-08-12 | 2015-12-16 | 中国原子能科学研究院 | Method for separating short-life nuclide <141>Ba |
CN109628759A (en) * | 2019-01-14 | 2019-04-16 | 兰州大学 | A method of extraction strontium |
-
2008
- 2008-07-31 CN CNA2008101201712A patent/CN101323906A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101690853B (en) * | 2009-10-19 | 2011-10-19 | 浙江大学 | Method for separating element Pd from high-level radioactive waste |
CN102614683A (en) * | 2012-04-05 | 2012-08-01 | 浙江大学 | Method for separating element palladium and sub-actinide elements from high-level waste |
CN105148732A (en) * | 2015-08-12 | 2015-12-16 | 中国原子能科学研究院 | Method for separating short-life nuclide <141>Ba |
CN105148732B (en) * | 2015-08-12 | 2017-11-21 | 中国原子能科学研究院 | One kind separation short-lived nuclide141Ba method |
CN109628759A (en) * | 2019-01-14 | 2019-04-16 | 兰州大学 | A method of extraction strontium |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100566789C (en) | A kind of method from high-level waste separating heating element Cs and Sr | |
CN101690853B (en) | Method for separating element Pd from high-level radioactive waste | |
CN100460057C (en) | Adsorbent capable of separating heating element cesium and strontium at the same time and its preparation method and application | |
CN102614683B (en) | Method for separating element palladium and sub-actinide elements from high-level waste | |
CN102539548B (en) | Method and device for purifying dioxin substance in environmental matrix extracting solution by using one-stage method | |
De Decker et al. | Carbamoylmethylphosphine oxide-functionalized MIL-101 (Cr) as highly selective uranium adsorbent | |
CN103706326B (en) | A kind of preparation method of natural minerals loaded nano defluorinating agent | |
CN101323906A (en) | Method for separating heating element Sr and metal element Ba from high-level waste | |
CN112176193B (en) | Method for separating Yb-176 and Lu-177 by lanthanide resin circulating elution | |
CN103319441B (en) | A kind of method of separating-purifying 10-deacetylate Bakating III from Ramulus et folium taxi cuspidatae | |
CN103406114A (en) | Preparation method and application of adsorbent for high-level wastewater treatment | |
CN102432535A (en) | Method for extracting and separating huperzine A and huperzine B from huperzia serrata | |
CN104095890A (en) | Method for recycling sweet tea polyphenol | |
CN102935355A (en) | Adsorbent for separating heating element Cs and preparation method and application thereof | |
CN101483079A (en) | Method for MA/RE mutual separation in high-level waste | |
CN101412725B (en) | Method for extracting and separating bilobalide B from ginkgo leaf | |
CN102060674A (en) | Method for purifying high-purity organic solvent diethyl ether | |
CN101985102B (en) | Online regeneration method for chromatographic silica gel of coenzyme Q10 | |
CN102417434A (en) | Method for purifying chromatographic grade organic solvent carbon tetrachloride | |
CN103159616A (en) | Decoloration method and purification method for solution containing critic acid | |
CN103588170B (en) | The purification process technique of recover hydrogen in a kind of electronic-grade polycrystalline silicon production | |
CN101502790A (en) | Sorbent for mutual separation of MA/RE in high-level waste and preparation thereof | |
CN102989428A (en) | Composite absorption material capable of removing scandium ions in natural water body as well as preparation method thereof | |
CN101838285B (en) | Method for separating phospholipids in purified oil material | |
CN108484557B (en) | Method for extracting isofraxidin from acanthopanax senticosus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C12 | Rejection of a patent application after its publication | ||
RJ01 | Rejection of invention patent application after publication |
Open date: 20081217 |