CN1424726A - Preparation of nano zirconium oxide balls piled transmutation target - Google Patents
Preparation of nano zirconium oxide balls piled transmutation target Download PDFInfo
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- CN1424726A CN1424726A CN03100567A CN03100567A CN1424726A CN 1424726 A CN1424726 A CN 1424726A CN 03100567 A CN03100567 A CN 03100567A CN 03100567 A CN03100567 A CN 03100567A CN 1424726 A CN1424726 A CN 1424726A
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- base substrate
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- 238000002360 preparation method Methods 0.000 title claims description 13
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title abstract description 12
- 229910001928 zirconium oxide Inorganic materials 0.000 title abstract description 5
- 238000009377 nuclear transmutation Methods 0.000 title 1
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002105 nanoparticle Substances 0.000 claims abstract description 16
- 238000005245 sintering Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 45
- 239000000758 substrate Substances 0.000 claims description 40
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 claims description 21
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- 239000012074 organic phase Substances 0.000 claims description 14
- 239000002244 precipitate Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 239000002077 nanosphere Substances 0.000 claims description 10
- 239000000693 micelle Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 8
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000280 densification Methods 0.000 claims description 6
- 229910052768 actinide Inorganic materials 0.000 claims description 5
- 150000001255 actinides Chemical class 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims description 5
- 239000012071 phase Substances 0.000 claims description 5
- 239000008346 aqueous phase Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 229910052695 Americium Inorganic materials 0.000 claims description 3
- 229910052685 Curium Inorganic materials 0.000 claims description 3
- 229910052781 Neptunium Inorganic materials 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 239000003758 nuclear fuel Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 description 3
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000011858 nanopowder Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000004530 micro-emulsion Substances 0.000 description 2
- 238000000593 microemulsion method Methods 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000004064 cosurfactant Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- ZQPKENGPMDNVKK-UHFFFAOYSA-N nitric acid;plutonium Chemical compound [Pu].O[N+]([O-])=O ZQPKENGPMDNVKK-UHFFFAOYSA-N 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 1
- WJWSFWHDKPKKES-UHFFFAOYSA-N plutonium uranium Chemical compound [U].[Pu] WJWSFWHDKPKKES-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
A process for preparing the nano zirconium oxide spheres stacked decay target used for cyclic processing of nuclear fuel includes such steps as adding carbon nanotubes to the water-insoluble organic solution containing AOT, ultrasonic dispersing, depositing to obtain dual-liquid anti-coagualting group coated zirconium oxide nanoparticles, immersing the target blank in the solution of Pu or MA in nitric acid, and high-temp sintering. Its advantages are high uniformity and content of Pu or Ma, simple process, and high utilization rate of raw material.
Description
Technical field
The invention belongs to inertial base material preparation technology scope in the nuclear technology, particularly be applied to the nuclear fuel cycle treatment process, can form the preparation method that a kind of zirconia nanosphere of monodisperse particles is piled up the transmuting target.
Background technology
In the nuclear fuel cycle treatment process, in order to improve the transmuting efficient of actinide and fission product in the nuclear fuel, realize the fuel recycle of a trafficability characteristic, released " the inertial base transmuting target element of no uranium is to replace traditional uranium plutonium mixed oxide mox fuel " [Fan Sheng in the world recently, leaf is along woods, Zhao Zhixiang etc., atomic energy science technology, 2001, Vol.35, No.2:164-168; Konings R, Conrad R, J.Nuclear Mater, 2000 (282): 159-170].Because it is long-pending that zirconium atom has less neutron cross section, the neutron irradiation during the nuke rubbish transmuting handled is inertia, and zirconium dioxide is insoluble to nitric acid, so zirconium dioxide becomes the first-selection of novel transmuting target element inertial base material.The main liquid dipping of the preparation technology of this fuel target, to immerse by the inertial base blank (50% hole) that the zirconium dioxide microballoon of 20-120 micron is piled in the salpeter solution of plutonium (Pu), inferior amount actinide (MA), plutonium nitrate or nitric acid MA infiltrate through behind the matrix dry, calcining changes the nitrate of Pu or MA into the oxide of Pu or MA, sinter final sphere or columnar target at a certain temperature into, put into fast reactor or accelerator transmuting system carries out the transmuting of Pu or MA.Owing to the restriction of raw material zirconium dioxide micro mist self size in the technology, caused the not high and skewness of adsorbance of Pu, MA, influenced the performance of target element.Yet advantages such as specific surface is big, high adsorption capacity that nano powder has, and has the even dispersion that size mono-dispersed nano powder can improve adsorbent.The preparation of above-mentioned Zirconium dioxide nano powder is also in the patent No.: 01130825.7, report in " a kind of method for preparing the controlled nano zircite of particle diameter " patent, with periodical Acta.Phys.Chim.Sin., 2002,18 (1): report " research work of prepared with microemulsion reactor zirconium dioxide nano particle " among the 5-9, this micro emulsion method adopts Qu Latong 100 to make surfactant, n-hexyl alcohol is cooked cosurfactant, form microemulsion, can obtain the controlled zirconia particles of particle diameter from several nanometers to tens nanometers, the problem that exists is complex process, dosage of surfactant is many, and raw material availability is low, has the problem of powder reuniting simultaneously in sintering process, can not well keep the microscopic appearance of nano particle.Therefore the present invention is proposing on a kind of patent of invention basis for preparing monodispersed zirconia nanosphere, utilize to add carbon nano-tube and further improve the performance of transmuting target, also not have discovery at present about nano particle and carbon nano-tube patent report in transmuting target field.
Summary of the invention:
The purpose of this invention is to provide a kind of zirconia nanosphere and pile up the preparation method of transmuting target, it is characterized in that: utilize aerosol OT AOT reverse micelle in biliquid precipitates mutually, to realize migration mutually, the precipitation of hydroxide that aqueous phase generates is moved in the organic phase, form the nanoparticle precipitate of AOT reverse micelle parcel; And adding carbon nano-tube CNTs plays space isolation and peptizaiton as precipitophore and in the roast process in reaction system, prevents the reunion of oxide nano-particles, prepares a kind of base substrate that contains the transmuting target of carbon nano-tube.Transmuting target base substrate is immersed in the salpeter solution of Pu, MA, make Pu, MA enter base substrate inside, obtain containing the zirconia nanosphere accumulation transmuting target base substrate of Pu or MA, wherein MA comprises time amount actinide Am, Cm, Np; Because carbon nano-tube has high specific surface, nanostructured, can further improve the adsorptive power of matrix target simultaneously to Pu, MA.Its concrete preparation process is:
(1) add CNTs earlier in the water-fast organic solution that contains AOT such as cyclohexane or toluene, wherein the weight ratio of AOT and CNTs is 1: 0.05-1: 2, and ultrasonic dispersion, splash into ZrOCl then successively
2Solution and ammoniacal liquor stir; ZrOCl wherein
2Solution concentration can be at 0.01-1mol/l, and ammonia concn 0.1mol/l to 10mol/l strong aqua all can;
(2) centrifugal settling will obtain subnatant, be unnecessary aqueous ammonium chloride solution, and the middle level is the organic phase precipitate gel, and the upper strata is the organic phase clear liquid, directly obtain precipitate gel after the separation.
(3) after 200 ℃ of oven dry of precipitated phase, the technology of preparing of transmuting target base substrate: in 450 ℃ of-800 ℃ of scopes under protective atmosphere roast, obtain containing the base substrate of the transmuting target of carbon nano-tube.
(4) transmuting target base substrate is immersed in Pu or the MA salpeter solution, make Pu, MA enter base substrate inside, obtain containing the transmuting target base substrate of Pu or MA.Take out sintering in the air of back, 1400 ~ 1800 ℃ of sintering temperatures obtain containing the zirconia ceramic transmuting target of the densification of Pu or MA.Wherein MA comprises time amount actinide Am, Cm, Np.Beneficial effect of the present invention is:
1) zirconium hydroxide that utilizes the AOT reverse micelle water to be generated in mutually at biliquid is moved to and is formed presoma in the organic phase, the oven dry roast, prepare the controlled Zirconium oxide nano grain of particle diameter, (size of nano particle can recently be controlled by the amount of AOT and oxyhydroxide), the particle monodispersity is better, and technological process is simple, the raw material availability height, compare with the micro emulsion method, dosage of surfactant is few.
2) utilize carbon nano-tube aid dispersion nano particle in powder roast process, form a kind of macroscopic body material that keeps the unique texture of nano particle pattern.Nano particle and carbon nano-tube help the adsorbance of MA to increase, and monodisperse particles guarantees the even distribution of MA.
Embodiment
The present invention is the preparation method that a kind of zirconia nanosphere is piled up the transmuting target, utilizes the AOT reverse micelle to realize migration mutually in biliquid precipitates mutually, and the precipitation of hydroxide that aqueous phase generates is moved in the organic phase, forms the nanoparticle precipitate of AOT reverse micelle parcel; And in reaction system, add carbon nano-tube (CNTs) and play as precipitophore and in the roast process that the space isolates and peptizaiton, prevent the reunion of oxide nano-particles, prepare a kind of base substrate that contains the transmuting target of carbon nano-tube.Transmuting target base substrate is immersed in Pu or the MA salpeter solution, make Pu, MA enter base substrate inside, obtain containing the zirconia nanosphere accumulation transmuting target base substrate of Pu, MA.Its concrete preparation process is:
(1) add CNTs earlier in containing the water-fast organic solution (as cyclohexane or toluene etc.) of AOT, wherein the weight ratio of AOT and CNTs is 1: 0.05-1: 2, and ultrasonic dispersion, splash into ZrOCl then successively
2Solution and ammoniacal liquor stir; ZrOCl wherein
2Solution concentration can be at 0.01-1mol/l, and ammonia concn 0.1mol/l to 10mol/l strong aqua all can; Consider process efficiency, adopt the ZrOCl of big concentration
2Solution and ammoniacal liquor are as long as guarantee ZrOCl
2And NH
3Amount be higher than 1: 2 than a and get final product, material mutually and the volume ratio of organic phase can be 1: 5-1: about 20, organic phase selects the volume of toluene ratio can be greater than 1: 5, select cyclohexane should greater than 1: 10 relatively more reasonable, AOT and ZrOCl
2Amount than the size of the zirconium oxide nano-particle that will determine to generate, can be 1: 5-1: 100 variations.
(2) centrifugal settling will obtain subnatant, be unnecessary aqueous ammonium chloride solution, and the middle level is the organic phase precipitate gel, and the upper strata is the organic phase clear liquid, directly obtain precipitate gel after the separation.
(3) after 200 ℃ of oven dry of precipitated phase, the technology of preparing of transmuting target base substrate: in 450 ℃ of-800 ℃ of scopes under protective atmosphere roast, obtain containing the base substrate of the transmuting target of carbon nano-tube.Carbon nano-tube can play steric restriction and peptizaiton in powder roast process, the activity of its particular structure and surface carbon atom can make nano zircite after 600 ℃ of roast coolings simultaneously, obtains stable cube phase under the room temperature.
(4) transmuting target base substrate is immersed (replace Pu, MA with cerium Ce in the experiment, this also is the method that foreign study uses) in Pu, the MA salpeter solution, make MA enter base substrate inside, obtain containing the transmuting target base substrate of Pu, MA.Take out sintering in the air of back, sintering temperature 1400-1800 ℃, temperature retention time 1-3 hour, obtain containing the zirconia ceramic transmuting target of the densification of Pu, MA.Because nano particle has the size monodispersity, the intergranular space is evenly distributed, and Xi Fu MA is evenly distributed in the target base substrate successively.For embodiment the present invention is illustrated again below.Example one
In the 100ml cyclohexane, add 1g AOT, stir 10min; Add 0.14g CNTs, ultrasonic 20min; Splash into the ZrOCl of 0.1mol/l
25ml; The powerful stirring one hour splashes into the ammoniacal liquor 10ml of 1.5mol/l, slow dripping, 1 hour consuming time of whole titration process, the powerful stirring 16 hours; Standing separation is got upper oil phase liquid, (NH
4Cl is at lower floor's aqueous phase), 72 ℃ of powerful down stirrings are boiled the gel that distillation obtained containing CNTs in 20 minutes, and isabelline liquid is arranged on the gel, remove, and ZrO is removed in 110 ℃ of oven dry down simultaneously
2NH
2The moisture of O obtains elementary idiosome, and 600 ℃ of roasts of Ar gas shiled 4 hours, stove are as cold as room temperature and take out.Transmuting target base substrate immerses Ce (because of Pu, MA etc. has very strong radioactivity, all adopt the Ce salpeter solution to replace Pu and MA to carry out experiment in the world) in the salpeter solution (Ce content 0.1mol/l), dip time is 30 minutes, and base substrate adsorbs cerous nitrate, obtains containing the transmuting target base substrate of Ce.Take out sintering in the air of back, 1600 ℃ of sintering temperatures, temperature retention time 1.5 hours obtains containing the zirconia ceramic transmuting target of the densification of Ce.Example two:
In 100ml toluene, add 0.3g AOT, stir 10min; Add 0.2g CNTs, ultrasonic 20min; Splash into the ZrOCl of 0.1mol/l
2Solution 50ml mixes, and powerful the stirring one hour splashes into the ammoniacal liquor 10ml of 1.5mol/l, slow dripping, 1 hour consuming time of whole titration process, the powerful stirring 2 hours; Centrifugal settling, stratified liquid, the upper strata is the toluene organic phase, lower floor is that water (contains NH
4Cl), the middle level is the zirconium hydroxide precipitate gel of AOT reverse micelle parcel, 110 ℃ of oven dry down of gel, and 500 ℃ of roasts of Ar gas shiled 4 hours, stove are as cold as room temperature and take out, the zirconia ceramic transmuting target base substrate that obtains.Base substrate immerses in Ce (replacing Pu and the MA) salpeter solution (Ce content 0.1mol/l), and dip time is 50 minutes, and base substrate adsorbs cerous nitrate, obtains containing the transmuting target base substrate of Ce.Take out sintering in the air of back, 1600 ℃ of sintering temperatures, temperature retention time 2 hours obtains containing the zirconia ceramic transmuting target of the densification of Ce.Example three:
In the 100ml cyclohexane, add 0.3gAOT, stir 10min; Add 0.3g CNTs, ultrasonic 20min; ZrOCl with 0.1mol/l
2Solution 20ml mixes, and brute force stirs 30min, splashes into the ammoniacal liquor 5ml of 1.5mol/l, slow dripping, powerful stirring 2 hours; Centrifugal settling, stratified liquid, the upper strata is the cyclohexane organic phase, lower floor is that water (contains NH
4Cl), the middle level is the zirconium hydroxide precipitate gel that contains the AOT reverse micelle parcel of CNTs, 110 ℃ of oven dry down of gel, and roast is 4 hours under 500 ℃ of Ar atmosphere, and stove is as cold as room temperature and takes out, the zirconia ceramic transmuting target base substrate that obtains.Base substrate immerses in Ce (replacing Pu and the MA) salpeter solution (Ce content 0.1mol/l), and dip time is 90 minutes, and base substrate adsorbs cerous nitrate, obtains containing the transmuting target base substrate of Ce.Take out sintering in the air of back, 1750 ℃ of sintering temperatures, temperature retention time 3 hours obtains containing the zirconia ceramic transmuting target of the densification of Ce.
Above example all obtain the zirconium dioxide nano-scale about 20nm, monodispersed base substrate.Ce is evenly distributed in target inside behind the sintering.
Claims (2)
1. a zirconia nanosphere is piled up the preparation method of transmuting target, it is characterized in that: utilize aerosol OT AOT reverse micelle in biliquid precipitates mutually, to realize migration mutually, the precipitation of hydroxide that aqueous phase generates is moved in the organic phase, form the nanoparticle precipitate of AOT reverse micelle parcel; And in reaction system, add carbon nano-tube CNTs as precipitophore, and be used for playing the space and isolate and peptizaiton in the roast process, prevent the reunion of oxide nano-particles, prepare a kind of base substrate that contains the transmuting target of carbon nano-tube; Again transmuting target base substrate is immersed in the salpeter solution of Pu, MA, make Pu, MA enter base substrate inside, obtain containing the zirconia nanosphere accumulation transmuting target base substrate of Pu or MA; Its concrete preparation process is:
(1) in the water-fast organic solution that contains AOT such as cyclohexane or toluene, add CNTs, the wherein weight ratio 1 of AOT and CNTs: 0.05-1 earlier: 2, and ultrasonic dispersion, splash into ZrOCl then successively
2Solution and ammoniacal liquor stir; ZrOCl wherein
2Solution concentration can be at 0.01-1mol/l, and ammonia concn 0.1mol/l to 10mol/l strong aqua all can;
(2) centrifugal settling will obtain subnatant, be unnecessary aqueous ammonium chloride solution, and the middle level is the organic phase precipitate gel, and the upper strata is the organic phase clear liquid, directly obtain precipitate gel after the separation;
(3) after 200 ℃ of oven dry of precipitated phase, the technology of preparing of transmuting target base substrate: in 450 ℃ of-800 ℃ of scopes under protective atmosphere roast, obtain containing the base substrate of the transmuting target of carbon nano-tube;
(4) transmuting target base substrate is immersed in Pu, the MA salpeter solution, make Pu, MA enter base substrate inside, obtain containing the transmuting target base substrate of Pu or MA; Take out sintering in the air of back, sintering temperature 1400-1800 ℃, temperature retention time 1-3 hour, obtain containing the zirconia ceramic transmuting target of the densification of Pu or MA.
2. a kind of zirconia nanosphere according to claim 1 is piled up the preparation method of transmuting target, it is characterized in that: described MA comprises time amount actinide Am, Cm, Np.
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| CNB031005675A CN1182760C (en) | 2003-01-20 | 2003-01-20 | Preparation of nano zirconium oxide balls piled transmutation target |
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| CN1182760C CN1182760C (en) | 2004-12-29 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298634C (en) * | 2004-07-22 | 2007-02-07 | 中国地质大学（武汉） | Process for preparing nano alkaline bismuth nitrate by micro emulsion |
| CN101846748A (en) * | 2010-06-23 | 2010-09-29 | 西北核技术研究所 | Melting based method for measuring iodine isotope evolution quantity |
| CN103345951A (en) * | 2013-06-21 | 2013-10-09 | 中国原子能科学研究院 | (U, np) O2transmutation fuel pellet and target preparation process |
| CN103533740A (en) * | 2013-03-04 | 2014-01-22 | 中国科学院近代物理研究所 | Target device for neutron generating device, accelerator-driven neutron generating device and beam coupling method of accelerator-driven neutron generating device |
| CN107211522A (en) * | 2015-01-29 | 2017-09-26 | 阿海珐有限公司 | For producing radioisotopic irradiation target and preparation method thereof |
| US10645792B2 (en) | 2013-03-04 | 2020-05-05 | Institute Of Modern Physics, Chinese Academy Of Sciences | Target device for neutron generating device, accelerator-excited neutron generating device and beam coupling method thereof |
| CN114990486A (en) * | 2022-07-28 | 2022-09-02 | 广州市尤特新材料有限公司 | Rotary zirconia target material and preparation method thereof |
-
2003
- 2003-01-20 CN CNB031005675A patent/CN1182760C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298634C (en) * | 2004-07-22 | 2007-02-07 | 中国地质大学（武汉） | Process for preparing nano alkaline bismuth nitrate by micro emulsion |
| CN101846748A (en) * | 2010-06-23 | 2010-09-29 | 西北核技术研究所 | Melting based method for measuring iodine isotope evolution quantity |
| CN101846748B (en) * | 2010-06-23 | 2012-05-30 | 西北核技术研究所 | Melting based method for measuring iodine isotope evolution quantity |
| US10645792B2 (en) | 2013-03-04 | 2020-05-05 | Institute Of Modern Physics, Chinese Academy Of Sciences | Target device for neutron generating device, accelerator-excited neutron generating device and beam coupling method thereof |
| CN103533740A (en) * | 2013-03-04 | 2014-01-22 | 中国科学院近代物理研究所 | Target device for neutron generating device, accelerator-driven neutron generating device and beam coupling method of accelerator-driven neutron generating device |
| CN103533740B (en) * | 2013-03-04 | 2016-01-27 | 中国科学院近代物理研究所 | For the target assembly of neutron generation device, the neutron generation device of Accelerator driven and line coupling process thereof |
| CN103345951B (en) * | 2013-06-21 | 2016-05-04 | 中国原子能科学研究院 | (U,Np)O2The preparation technology of transmuting fuel pellet and target part |
| CN103345951A (en) * | 2013-06-21 | 2013-10-09 | 中国原子能科学研究院 | (U, np) O2transmutation fuel pellet and target preparation process |
| CN107211522A (en) * | 2015-01-29 | 2017-09-26 | 阿海珐有限公司 | For producing radioisotopic irradiation target and preparation method thereof |
| US10424417B2 (en) | 2015-01-29 | 2019-09-24 | Framatome Gmbh | Method of preparing irradiation targets for radioisotope production and irradiation target |
| CN107211522B (en) * | 2015-01-29 | 2019-12-24 | 法玛通有限公司 | Irradiation target for producing radioisotopes and method for producing same |
| CN114990486A (en) * | 2022-07-28 | 2022-09-02 | 广州市尤特新材料有限公司 | Rotary zirconia target material and preparation method thereof |
| CN114990486B (en) * | 2022-07-28 | 2022-10-18 | 广州市尤特新材料有限公司 | Rotary zirconia target material and preparation method thereof |
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