CN104528652A - Vertical type Na131I dry distillation production device - Google Patents
Vertical type Na131I dry distillation production device Download PDFInfo
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- CN104528652A CN104528652A CN201510037631.5A CN201510037631A CN104528652A CN 104528652 A CN104528652 A CN 104528652A CN 201510037631 A CN201510037631 A CN 201510037631A CN 104528652 A CN104528652 A CN 104528652A
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- well heater
- absorption tower
- destructive distillation
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- dry distillation
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Abstract
The invention provides a vertical type Na131I dry distillation production device which comprises a dry distillation device, an absorption tower, a purifier, a vacuum pump and a controller, wherein the dry distillation device is fixedly connected with the absorption tower; the dry distillation device is further sequentially connected with the absorption tower, the purifier and the vacuum pump through a pipeline; and the dry distillation device and the vacuum pump are electrically connected with the controller respectively. The production device provided by the invention can produce medical-grade Na131I products from TeO2 raw materials irradiated by a reactor, and an uncovered target drum (e.g. zirconium alloy target drum) can be directly put into a quartz crucible for distillation, thus greatly improving the single production capacity and raw material utilization ratio, and reducing the radioactive solid waste content and contamination risk. The production device provided by the invention has a compact structure, is suitable for Na131I dry distillation production in a shielded working box with small effective operating space, and has favorable operation stability and safety.
Description
Technical field
The invention belongs to radio isotope preparing technical field, be specifically related to a kind of vertical type Na
131i destructive distillation production equipment.
Background technology
The main mode of production of radioactivity iodine-131 is adopt the method for distillation from the TeO after reactor irradiation
2with from
235extract in the sliver mixture of U.The radiopharmaceuticals be made up of radioactivity iodine-131 are widely used in modern clinical nuclear medicine Clinics and Practices, the sodium iodide (Na that current medical institutions use
131i) radiological materials of the medicine of medicine and iodine-131 mark mainly comes from the TeO of reactor irradiation activation
2.From the TeO of activation
2the mode of middle production radioactivity iodine-131 mainly contains wet method distillation and dry distillation two kinds.Adopt wet method distillation to produce the flow process of iodine-131 to be roughly: the tellurium dioxide dissolving activation by dense NaOH solution, then add the appropriate vitriol oil and be neutralized into acidity, then add appropriate hydrogen peroxide (H
2o
2), control temperature air distillation, the rare NaOH solution of overhead product absorbs.Dry distillation produces Na
131the flow process of I is roughly: by the TeO of activation
2pour in quartz container (quartz boat), putting into silica tube high temperature (the about 750 DEG C) distillation of distilling furnace, radioactivity iodine-131 is from the TeO of molten state
2in be evaporated, taken out of distilling furnace by carrier gas, to be absorbed by the dilute NaOH solution in absorption bottle afterwards.Due to destructive distillation production technique do not exist wet method distilling producing process need dissolve target material with the dense NaOH of large volume and with in a large amount of high-concentration sulfuric acids and lysate, avoid dissolving, a large amount of heat releases of N-process need the long period to cool, and add H at lysate
2o
2easily there is solution bumping and cause lysate to spray into the phenomenon of absorption bottle, not easily occurring
131the nucleic such as Te stains the phenomenon of products, and the concentration of the working efficiency of destructive distillation production technique, product recovery rate and product is all obviously better than wet method distil process, and Na is produced in current wet method distillation
131the technique of I is eliminated.Due to from
235the technics comparing extracting iodine-131 in the sliver mixture of U is complicated, and yield poorly, cost is high, high-level waste amount large, the economic benefit of this mode of production is far below the destructive distillation mode of production.
Document shows, China starts destructive distillation from the mid-90 in 20th century and produces iodine-131 technical study, and drops into practical application, the sodium iodide (Na of acquisition
131i) product provides domestic medical institutions to use.Except the invention provides unit-Inst. of Nuclear Physics and Chemistry, Chinese Engineering Physics Research Ins, once adopted respectively outside destructive distillation production technique and wet method distil process production radioactivity iodine-131, domestic China Atomic Energy Science Research Institute and Chinese nuclear power source research institute were all once engaged in iodine-131 destructive distillation and produced, and established production equipment.At present, Na is produced in the destructive distillation of open report
131the device of I is all horizontal type devices, needs TeO
2target material is poured out from irradiation target cylinder, is contained in quartz boat, and level is sent in the silica tube of process furnace and distilled.This horizontal type device needs to occupy valid function space more in shielding work box (note: valid function space refers to and utilizes sword formula mechanical manipulator that work box is installed can the region of safety and handled easily, be generally less than mechanical manipulator horizontal direction operation left and right skew 30 degree, space scale that vertical direction operates downward shift 15 degree and depth about 0.5 meter); Owing to being subject to manipulator clamping and shifting limiting with the safety operation of heavier article of large volume, the small volume (TeO of the quartz boat that existing production equipment uses
2loading amount is generally less than 100 grams), and silica tube (diameter is about 50mm) in process furnace is only allowed at every turn and is put into a quartz boat; When needs continuous seepage, must cooling be shut down, need the long period temperature in distilling furnace furnace chamber to be down to less than 200 DEG C and quartz boat could be taken out (otherwise the TeO in high quartz boat
2target material will continue a small amount of radioactivity iodine-131 of overflowing, may to work box, equipment and environment), could drop into after the quartz boat more renewed loads raw material again and produce next time.Existing Na
131the production equipment of I exists that single rate little (be generally less than 5 Curie/time), working efficiency are lower, the TeO of activation
2raw material is poured into easily unrestrained in the process of quartz boat and pollutes working space from irradiation target cylinder, topple over the raw material adhered in rear target cylinder can not recycle, quartz boat repeating utilization factor low (being generally single use), generation quantity of solid waste is large, and irradiation target cylinder cutting open before must fall fall target cylinder repeatedly with mechanical manipulator, cause target material can not pour the problems such as quartz boat smoothly into prevent from causing part target material to harden because target material heat radiation is uneven in irradiation process, and except increasing number of operations, existing horizontal type production equipment is difficult to significantly improve per unit area yield energy by improving technique and apparatus structure.At present, ac.cn and manufacturing enterprise is not yet had to use the example of this vertical type device production radioactivity iodine-131 to report.
Summary of the invention
In order to overcome Na of the prior art
131i production equipment per unit area yield energy is little, radwaste is many, the TeO of activation
2the utilization ratio of raw material is not high enough, easily cause working space radiocontamination and the lower deficiency of working efficiency, the invention provides a kind of vertical type Na
131i destructive distillation production equipment.
The present invention can realize the natural TeO from reactor irradiation activation
2middle high efficiency production goes out to meet the radioactivity Na of medical requirement
131i solution, be applicable to the shielding work box that valid function space is less, and reach significantly improve per unit area yield can and working efficiency, control radiocontamination risk and the minimum object of radioactive solid waste amount, production equipment of the present invention can from the natural tellurium dioxide (TeO of reactor irradiation
2) obtain the radioactivity Na meeting the high nuclear purity of medical requirement in raw material
131i solution product.
Vertical type Na of the present invention
131i destructive distillation production equipment, be characterized in, described production equipment comprises destructive distillation device, absorption tower, cleaner, vacuum pump, controller, its annexation is, described destructive distillation device and absorption tower are fixedly installed, destructive distillation device is also connected by pipeline successively with absorption tower, cleaner, vacuum pump, and destructive distillation device, vacuum pump are electrically connected with controller respectively.
Described destructive distillation device comprises well heater I, well heater II, water jacket, base plate, lifting table, small rail car, wherein, well heater I, well heater II, water jacket are annular, its annexation is, the top of described well heater II is provided with well heater I, the below of well heater II is provided with water jacket, and well heater II is fixedly connected with respectively with well heater I, water jacket, is disposed with the base plate lifting table, the small rail car that are fixedly connected with in the below of water jacket from top to bottom.Described well heater I, well heater II are respectively arranged with thermopair I, thermopair II, well heater I, well heater II internal fixtion are provided with quartz cover, quartz cover is connected with silica tube.Be provided with the quartz crucible, support, the heat insulation that stack successively up and down above described base plate, base plate be also provided with inlet pipe I, inlet pipe I is provided with intake valve, strainer.Sealing-ring is provided with between water jacket and base plate.Described silica tube is connected with absorption tower.Described well heater I, thermopair I, well heater II, thermopair II, lifting table, small rail car are electrically connected with controller respectively.
Described absorption tower comprises inlet pipe II, valve I, product bottle, reinforced bottle, valve II, offgas duct, alkali liquid tank, described alkali liquid tank is respectively arranged with inlet pipe II, valve I, valve II, offgas duct.Described valve I is connected with product bottle, and valve II is connected with reinforced bottle.Described inlet pipe II is connected with silica tube, and offgas duct is connected with cleaner.
Work top immediately below described small rail car is provided with two parallel tracks.
Vertical type Na of the present invention
131i destructive distillation production equipment make use of
130te (n, γ)
131te (β
-)
131the nuclear physics reaction of I, with the larger difference of the sublimation temperature of iodine and compound and tellurium and compound thereof, by controlling the method for Heating temperature destructive distillation, achieving and from the tellurium dioxide after reactor irradiation, producing radioactivity iodine-131 product in enormous quantities (its primary chemical state is Na
131i), its concise and to the point principle of work is: with cutting machine, activation TeO will be housed
2the target cylinder (material is generally rafifinal and zirconium) of raw material is opened, mechanical manipulator is utilized to pour the raw material opened in target cylinder into quartz crucible, or even the target cylinder (the target cylinder that as high temperature resistant in zirconium alloy etc. and neutron activation rate is low material is made) that raw material is housed and the lid that is stained with raw material are put into quartz crucible together, then small rail car is controlled by specified location immediately below raw material transport to process furnace, raw material to rise in process furnace behind predetermined position by hoisting appliance, thermal distillation (distillation temperature about 750 DEG C) is added under certain condition of negative pressure, the lower radioactivity iodine-131 of sublimation temperature is from activation TeO
2lattice in disengage, with carrier gas oriented flow through absorption tower and by tower sig water (being generally the NaOH solution of 0.1-0.5mol/L) trapping.Take out in absorption tower the sig water absorbing a large amount of iodine-131, after filtration with the process such as potential of hydrogen, iodine-131 concentration adjustment and/or sterilizing, namely obtain Na
131i solution product.Production Flow Chart (comprising trolley travelling, operating elevating platform, temperature control heating, vacuum pump operation etc.) adopts PLC programming Control.
The present invention utilizes the vertical type Na of major diameter (diameter can reach more than 300mm) quartz cover
131i destructive distillation production equipment, even can by the target cylinder of several incision (as zirconium alloy material target cylinder, fusing point is about 1850 DEG C) be placed in quartz crucible together with the lid speckling with radiological materials cut and distill, avoid when horizontal type device is produced and need to fall to fall TeO in target cylinder, target cylinder
2raw material transfer, the raw material adhered in target cylinder can not make full use of, TeO in operating process
2raw material is easily unrestrained and pollute the problems such as the relatively large and solid waste radioactive activity of working space, radioactive solid waste output is higher, significantly improves Na
131the per unit area yield energy that I produces and working efficiency, and outside valid function height distilling furnace being fixed on mechanical manipulator in heavy wall work box, by moving track dolly and employing one lifting table, quartz crucible can be placed in the most effective work point of mechanical manipulator, the quartz crucible that realizes that can be very convenient and safe is feeded.And, in reality in the urgent need to can in enormous quantities (if single output is more than 50-100 Curie) produce Na
131the destructive distillation production equipment of I.
The present invention does not need repeatedly to fall to fall process to target cylinder before the cutting of irradiation target cylinder is opened, must by TeO
2raw material is poured out from irradiation target cylinder, but the target cover that can even adhere to raw material together with target cylinder (as zirconium closes material target cylinder) directly puts into quartz crucible distillation, and the utilization ratio of raw material is higher, completely avoid the TeO that will activate
2easily unrestrained and pollute the risk of working space when target material pours quartz boat into from irradiation target cylinder, also reducing raw material that target cylinder adheres to may the risk of contaminate environment in waste transfer and temporary period; The quartz boat of horizontal type device is disposable consumption object, and quartz crucible of the present invention can repeatedly use, and quantity of solid waste obviously reduces; Outside the mechanical manipulator valid function space that process furnace can be fixed on work box by straight vertical type device (being namely arranged on the position of work box top higher than mechanical manipulator vertical operation height), and the base of process furnace can be dropped to lower than mechanical manipulator levels operation position with upper/lower positions, larger saves valid function space, and be more convenient for quartz crucible charging, maybe by what uncap, activation TeO is housed
2the target cylinder of raw material is put into quartz crucible and is taken out from quartz crucible by target cylinder useless after distillation; The quartz crucible of straight vertical type device and the size of quartz cover coordinated with it can do more, and once can hold several target cylinder (raw material) as required, and per unit area yield can far above horizontal type device.
Vertical type Na of the present invention
131i destructive distillation production equipment can realize extracting qualified radioactivity iodine-131 from the natural tellurium dioxide of reactor irradiation, overcome existing horizontal type production equipment per unit area yield can little, product concentration compared with low, radioactive solid waste is many, the TeO of activation
2the deficiency such as the utilization ratio of target material is not high enough, easily cause radiocontamination and working efficiency is lower, improves production efficiency and production capacity, alleviates the labour intensity of producers.The compact construction of production equipment, security is good.
Accompanying drawing explanation
Fig. 1 is vertical type Na of the present invention
131the structured flowchart of I destructive distillation production equipment;
Fig. 2 is the structural representation of the destructive distillation device in the present invention;
Fig. 3 is the structural representation on the absorption tower in the present invention;
In figure: 1. destructive distillation device 2. absorption tower 3. cleaner 4. vacuum pump 5. controller 6. well heater I 7. thermopair I 8. well heater II 9. thermopair II 10. water jacket 11. base plate 12. lifting table 13. small rail car 14. silica tube 15. quartz cover 16. quartz crucible 17. support 18. heat insulation 19. sealing-ring 20. inlet pipe I 21. intake valve 22. strainer 23. inlet pipe II 24. valve I 25. product bottle 26. feeds in raw material bottle 27. valve II 28. offgas duct 29. alkali liquid tank.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1
Fig. 1 is vertical type Na of the present invention
131the structured flowchart of I destructive distillation production equipment, Fig. 2 is the structural representation of the destructive distillation device in the present invention, and Fig. 3 is the structural representation on the absorption tower in the present invention.In Fig. 1 ~ Fig. 3, vertical type Na of the present invention
131i destructive distillation production equipment, comprise destructive distillation device 1, absorption tower 2, cleaner 3, vacuum pump 4, controller 5, its annexation is, described destructive distillation device 1 is fixedly installed with absorption tower 2, destructive distillation device 1 is also connected by pipeline successively with absorption tower 2, cleaner 3, vacuum pump 4, and destructive distillation device 1, vacuum pump 4 are electrically connected with controller 5 respectively.As shown in Figure 1.
Described destructive distillation device 1 comprises well heater I 6, well heater II 8, water jacket 10, base plate 11, lifting table 12, small rail car 13, wherein, well heater I 6, well heater II 8, water jacket 10 are annular, its annexation is, the top of described well heater II 8 is provided with well heater I 6, the below of well heater II 8 is provided with water jacket 10, well heater II 8 is fixedly connected with respectively with well heater I 6, water jacket 10, is disposed with the base plate 11 and lifting table 12, small rail car 13 that are fixedly connected with in the below of water jacket 10 from top to bottom.Described well heater I 6, well heater II 8 are respectively arranged with thermopair I 7, thermopair II 9, well heater I 6, well heater II 8 internal fixtion are provided with quartz cover 15, quartz cover 15 is connected with silica tube 14.Be provided with the quartz crucible 16, support 17, the heat insulation 18 that stack successively up and down above described base plate 11, base plate 11 be also provided with inlet pipe I 20, inlet pipe I 20 is provided with intake valve 21, strainer 22.Sealing-ring 19 is provided with between water jacket 10 and base plate 11.Described silica tube 14 is connected with absorption tower 2.Described well heater I 6, thermopair I 7, well heater II 8, thermopair II 9, lifting table 12, small rail car 13 are electrically connected with controller 5 respectively.As shown in Figure 2.
Described absorption tower 2 comprises inlet pipe II 23, valve I 24, product bottle 25, reinforced bottle 26, valve II 27, offgas duct 28, alkali liquid tank 29, described alkali liquid tank 29 is respectively arranged with inlet pipe II 23, valve I 24, valve II 27, offgas duct 28.Described valve I 24 is connected with product bottle 25, and valve II 27 is connected with reinforced bottle 26.Described inlet pipe II 23 is connected with silica tube 14, and offgas duct 28 is connected with cleaner 3.As shown in Figure 3.
Work top immediately below described small rail car 13 is provided with two parallel tracks.
Workflow of the present invention is as follows, by controller 5 or mechanical manipulator, small rail car 13 is moved to specified location (can arrange trolley track direction according to the practical situation in work box) together with objects such as the quartz crucible 16 be placed on car, support 17, heat insulation 18, base plate 11, lifting tables 12, and manual operation mechanical manipulator is by the TeO of activation
2raw material is poured in quartz crucible 16 (or raw material and target cylinder being put in the lump), then small rail car 13 moves to fixed position immediately below well heater II 8, the spacing rising of lifting table 12 runs, base plate 11 and water jacket 10 are close to, utilize sealing-ring 19 on base plate 11 by the bore seal of well heater II 8.
Controller 5 starts well heater I 6 and well heater II 8 according to the heating schedule instruction arranged, and by thermopair I 7, thermopair II 9 HEATER FOR MEASURING I 6, well heater II 8 inner quartz tube 14 and quartz cover 15 surface temperature respectively, implement accurately to control to the Heating temperature of the raw material in quartz crucible 16 and carrier gas.Well heater II 8 and well heater I 6 according to sequence of control heating, and keep about 90min about 750 DEG C and about 300 DEG C respectively, make radioactivity iodine-131 from TeO
2all distill in raw material, and make the micro-Te in carrier gas be deposited on silica tube 14 inwall; Under the effect of vacuum pump 4, carrier gas (available air) flows through intake valve 21, strainer 22, quartz cover 15, silica tube 14, absorption tower 2, cleaner 3 successively by inlet pipe 20, pumped into by vacuum pump 4, be then emitted in loft drier or collected by special bomb.In the process, from TeO
2distill radioactivity iodine-131 in raw material and be loaded into absorption tower 2 by carrier gas, absorbed by alkali lye (being generally the dilute NaOH solution of 0.1-0.5mol/L) wherein, and unabsorbed a small amount of iodine-131 enters cleaner 3 with carrier gas, by materials adsorption such as gacs wherein.
After having distilled, controller 5 stops well heater II 8 and well heater I 6 to heat, and well heater II 8 cavity temperature recorded at thermopair II 9 lower than 200 DEG C after, control the spacing decline of lifting table 12 to run, small rail car 13 moves to starting position, then utilize mechanical manipulator to be taken out by the distillation residual solid refuses such as discarded quartz crucible 16 or target cylinder, and migrate out Workplace by other instrument.The alkali lye collected for radioactivity iodine-131 enters absorption tower 2 from reinforced bottle 26 through valve II 27, and absorb the alkali lye after a large amount of radioactivity iodine-131 and be discharged in product bottle 25 through valve I 24, then be transferred in the work box of specifying, through filtering, regulating potential of hydrogen and the process such as radioactivity iodine-131 concentration and/or sterilizing, make medical Na
131i solution product.
Claims (4)
1. vertical type Na
131i destructive distillation production equipment, it is characterized in that: described production equipment comprises destructive distillation device (1), absorption tower (2), cleaner (3), vacuum pump (4), controller (5), its annexation is, described destructive distillation device (1) and absorption tower (2) are fixedly installed, destructive distillation device (1) is also connected by pipeline successively with absorption tower (2), cleaner (3), vacuum pump (4), and destructive distillation device (1), vacuum pump (4) are electrically connected with controller (5) respectively.
2. production equipment according to claim 1, it is characterized in that: described destructive distillation device (1) comprises well heater I (6), well heater II (8), water jacket (10), base plate (11), lifting table (12), small rail car (13), wherein, well heater I (6), well heater II (8), water jacket (10) are annular; Its annexation is, the top of described well heater II (8) is provided with well heater I (6), and the below of well heater II (8) is provided with water jacket (10), and well heater II (8) is fixedly connected with respectively with well heater I (6), water jacket (10); The base plate (11), lifting table (12), the small rail car (13) that are fixedly connected with is disposed with from top to bottom in the below of water jacket (10); Described well heater I (6), well heater II (8) are respectively arranged with thermopair I (7), thermopair II (9), well heater I (6), well heater II (8) internal fixtion are provided with quartz cover (15), quartz cover (15) is connected with silica tube (14); The quartz crucible (16), support (17), the heat insulation (18) that stack successively is up and down provided with above described base plate (11), base plate (11) is also provided with inlet pipe I (20), inlet pipe I (20) is provided with intake valve (21), strainer (22); Sealing-ring (19) is provided with between water jacket (10) and base plate (11); Described silica tube (14) is connected with absorption tower (2); Described well heater I (6), thermopair I (7), well heater II (8), thermopair II (9), lifting table (12), small rail car (13) are electrically connected with controller (5) respectively.
3. production equipment according to claim 1, it is characterized in that: described absorption tower (2) comprises inlet pipe II (23), valve I (24), product bottle (25), reinforced bottle (26), valve II (27), offgas duct (28), alkali liquid tank (29), described alkali liquid tank (29) is respectively arranged with inlet pipe II (23), valve I (24), valve II (27), offgas duct (28); Described valve I (24) is connected with product bottle (25), and valve II (27) is connected with reinforced bottle (26); Described inlet pipe II (23) is connected with silica tube (14), and offgas duct (28) is connected with cleaner (3).
4. production equipment according to claim 2, is characterized in that: the work top immediately below described small rail car (13) is provided with two parallel tracks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037631.5A CN104528652B (en) | 2015-01-26 | 2015-01-26 | Vertical type Na 131i destructive distillation production equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510037631.5A CN104528652B (en) | 2015-01-26 | 2015-01-26 | Vertical type Na 131i destructive distillation production equipment |
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| Publication Number | Publication Date |
|---|---|
| CN104528652A true CN104528652A (en) | 2015-04-22 |
| CN104528652B CN104528652B (en) | 2016-04-06 |
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ID=52844348
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|---|---|---|---|
| CN201510037631.5A Expired - Fee Related CN104528652B (en) | 2015-01-26 | 2015-01-26 | Vertical type Na 131i destructive distillation production equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686609A (en) * | 2018-07-18 | 2018-10-23 | 中国工程物理研究院核物理与化学研究所 | A kind of fast cooling type Na131I destructive distillation process units |
| CN109813843A (en) * | 2019-01-01 | 2019-05-28 | 中国人民解放军63653部队 | Hundred feather weight solid radioactive waste glass solidification of electrode insert type handles experimental system |
| CN115945035A (en) * | 2022-12-31 | 2023-04-11 | 中国工程物理研究院核物理与化学研究所 | I-131 dry distillation absorber driven by compressed air |
| CN116216644A (en) * | 2023-03-20 | 2023-06-06 | 四川大学 | Low-vacuum-degree high-purity At-211 carbonization production system and production method thereof |
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| GB1050690A (en) * | 1964-10-02 | |||
| KR100255181B1 (en) * | 1996-12-04 | 2000-06-01 | 김성년 | Dry separation apparatus for radioactive iodine(i-131) production and method therefor |
| WO2013174949A1 (en) * | 2012-05-24 | 2013-11-28 | Areva Med Sas | Method and apparatus for the production of lead 212 for medical use |
| CN103771341A (en) * | 2013-12-23 | 2014-05-07 | 米度（南京）生物技术有限公司 | Method for preparing radioactive <124>I ions |
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2015
- 2015-01-26 CN CN201510037631.5A patent/CN104528652B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1050690A (en) * | 1964-10-02 | |||
| KR100255181B1 (en) * | 1996-12-04 | 2000-06-01 | 김성년 | Dry separation apparatus for radioactive iodine(i-131) production and method therefor |
| WO2013174949A1 (en) * | 2012-05-24 | 2013-11-28 | Areva Med Sas | Method and apparatus for the production of lead 212 for medical use |
| CN103771341A (en) * | 2013-12-23 | 2014-05-07 | 米度（南京）生物技术有限公司 | Method for preparing radioactive <124>I ions |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108686609A (en) * | 2018-07-18 | 2018-10-23 | 中国工程物理研究院核物理与化学研究所 | A kind of fast cooling type Na131I destructive distillation process units |
| CN108686609B (en) * | 2018-07-18 | 2023-06-27 | 中国工程物理研究院核物理与化学研究所 | Quick cooling type Na 131 I dry distillation apparatus for producing |
| CN109813843A (en) * | 2019-01-01 | 2019-05-28 | 中国人民解放军63653部队 | Hundred feather weight solid radioactive waste glass solidification of electrode insert type handles experimental system |
| CN115945035A (en) * | 2022-12-31 | 2023-04-11 | 中国工程物理研究院核物理与化学研究所 | I-131 dry distillation absorber driven by compressed air |
| CN116216644A (en) * | 2023-03-20 | 2023-06-06 | 四川大学 | Low-vacuum-degree high-purity At-211 carbonization production system and production method thereof |
| CN116216644B (en) * | 2023-03-20 | 2023-09-22 | 四川大学 | Low-vacuum-degree high-purity At-211 carbonization production system and production method thereof |
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|---|---|
| CN104528652B (en) | 2016-04-06 |
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