CN203355359U - Combined extraction device of <79> Se, <93> Zr and <107> Pd - Google Patents
Combined extraction device of <79> Se, <93> Zr and <107> Pd Download PDFInfo
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- CN203355359U CN203355359U CN 201220734968 CN201220734968U CN203355359U CN 203355359 U CN203355359 U CN 203355359U CN 201220734968 CN201220734968 CN 201220734968 CN 201220734968 U CN201220734968 U CN 201220734968U CN 203355359 U CN203355359 U CN 203355359U
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Abstract
The utility model relates to the technical field of extraction of radioactive substances, and discloses a combined extraction device of <79> Se, <93> Zr and <107> Pd. The device comprises a mechanical part and a control part, wherein the mechanical part mainly comprises a liquid storage tank unit (1), a chromatographic column unit (4), an electromagnetic valve unit (2) and a peristaltic pump unit (3); and the control part comprises a computer and a controller. The device has the advantages that the device is simple and convenient to operate, the exposure dose of an operator is small, and the combined extraction of <79> Se, <93> Zr and <107> Pd is realized.
Description
Technical field
The utility model relates to radioactive substance extractive technique field, is specifically related to a kind of
79se,
93zr,
107the associating extraction element of Pd.
Background technology
79se,
93zr,
107pd is all long-life pure β fission product nucleic, and the half-life is respectively 2.95 * 10
5a, 1.53 * 10
6a and 6.5 * 10
6a.Along with radwaste is processed the day by day deep of disposal research, their toxicity at a specified future date causes people's close attention gradually.In order to measure their Nuclear Data, at first will from high activity liquid waste, be separated.
Method to independent separation Se, Zr, Pd is a lot.Aoyama etc. take miniature Bis ?II S resin column set up as main body the Flow Injection Analysis Method that a kind of on-line preconcentration is measured Se, can measure the Se (IV) of trace in biological sample.Yang Jinling etc. exist
93use 1mol/L HNO in the mask work of Zr
3upper prop, then use 1mol/L HNO
3drip washing impurity nucleic, finally use 10mol/L HNO
3desorb Zr, isolated
93zr, fine to Cs, Sr, Eu, Pu, Ce, Ru, Am decontamination, after one time silicagel column separates, the yield of Zr is greater than 95%.Matsubara etc. with Amberlite IRA ?35 resins from industrial wastewater Quantitative Separation Pd.
Because half-life of these nucleic all is greater than 10
5a, specific activity is very low, and their shared activity ratios in high activity liquid waste approximately only have 10
?6or lower, therefore want to isolate the target nucleic of q.s, handled high activity liquid waste radioactivity is very strong.In order to reduce the suffered dose of radiation of staff and to reduce the secondary refuse, wish a kind of automation equipment from high-level waste, they extracted simultaneously of development.Wu Junde etc. are in " system separation from high activity liquid waste
79se,
93zr,
107the method of Pd " in disclose utilize DMG post, silicagel column, Bis ?the II post from the HLLW(high activity liquid waste) extract the separation process of Pd, Zr, Se, the document not have to disclose the device of this system separation.In addition, in the document, disclosed flow process is not connected to each other three kinds of pillars and can not realize to make three kinds of nucleic to realize automation, separate continuously yet.
The utility model content
(1) utility model purpose
According to the existing problem of prior art, the utility model provide a set of easy and simple to handle, operating personnel's radioactive dose is little, realize
79se,
93zr,
107pd combines the device of extraction.
(2) technical scheme
In order to solve the existing problem of prior art, the technical solution of the utility model is as follows:
79se,
93zr,
107the associating extraction element of Pd, this device is comprised of mechanical part and control section, and wherein mechanical part mainly consists of hopper unit 1, chromatograph pole unit 4, electromagnetic valve unit 2, peristaltic pump unit 3; Control system is comprised of computer and controller, and wherein hopper unit 1 is positioned at the top of electromagnetic valve unit 2;
Its preferred version is:
79se,
93zr,
107the associating extraction element of Pd, the hopper unit 1 of this device is comprised of 5 hoppers, the material of hopper is lucite, stores respectively feed liquid to be extracted, 1mol/L nitric acid in 5 hoppers, the An Shui that volume ratio is 2:1 ?methyl alcohol, 10mol/L HNO
3, 0.05mol/L Ban Guang An Suan ?0.1mol/L hydrochloric acid.Chromatograph pole unit 4 is comprised of DMG chromatograph post, silica gel chromatography post, Bis-II chromatograph post, and it is right that three kinds of chromatograph posts can be realized respectively
107pd,
93zr,
79the extraction of Se.Three kinds of chromatograph posts can be arranged with random order, between the chromatograph post, by acidproof corrosion resistant pipeline, connect.Control section computer and controller form, by the switch of controller and computer control electromagnetic valve unit 2, thus the trend of control feed liquid; By controlling the switch of peristaltic pump, and then control the volume of feed liquid.
(3) beneficial effect
The technical scheme that adopts the utility model to provide has following beneficial effect:
(1)
79se,
93zr,
107pd combines extraction element, and this device is by coupling together three chromatograph posts to have realized combining extraction, and also mechanical part and control section being combined, it is right to have realized
79se,
93zr,
107pd combines the Long-distance Control of extraction, has reduced personnel's radioactive dose and the generation of radwaste.(2) utilize this separator pair
9se,
93zr,
107pd is combined while extracting, and yield can reach respectively more than 80%, wherein right
107the rate of recovery of Pd can reach more than 90%.(3) in radwaste
137the decontamination factor of Cs and total β reaches 10
3, can obtain that radioactive level reduces greatly
79se,
93zr,
107the thick product of Pd.
The accompanying drawing explanation
Fig. 1
79se,
93zr,
107the mechanical part schematic diagram of the associating extraction element of Pd;
1, hopper unit 2, electromagnetic valve unit 3, peristaltic pump unit 4, chromatograph pole unit 5, product-collecting groove 6, waste collection groove;
Fig. 2
79se,
93zr,
107the schematic diagram that the mechanical part of the associating extraction element of Pd is connected with control section.
The specific embodiment
Below in conjunction with the specific embodiment and Figure of description, the utility model is further elaborated.
79se,
93zr,
107the associating extraction element of Pd, this device is comprised of mechanical part and control section, and wherein mechanical part mainly consists of hopper unit 1, chromatograph pole unit 4, electromagnetic valve unit 2, peristaltic pump unit 3; Control system is comprised of computer and controller;
Embodiment 1
79se,
93zr,
107the associating extraction element of Pd, as shown in Figure 1.The hopper unit 1 of this device is comprised of 5 hoppers, and effect is stock solution, and material is the lucite material, stores respectively feed liquid to be extracted, 1mol/L nitric acid in 5 hoppers, 2:1 An Shui ?methyl alcohol, 10mol/L HNO
3, 0.05mol/L Ban Guang An Suan ?0.1mol/L hydrochloric acid.Chromatograph pole unit 4 is followed successively by DMG chromatograph post, silica gel chromatography post, Bis-II chromatograph post composition, and it is right to realize respectively
107pd,
93zr,
79the extraction of Se, can collect corresponding product at the product-collecting groove of each chromatograph post.Between the chromatograph post, by acidproof corrosion resistant pipeline, connect.
Control section computer and controller form, and by the switch of controller and computer control magnetic valve, control the switch of electromagnetic valve unit 2, thereby control the trend of feed liquid; By controlling the switch of peristaltic pump unit 3, and then control the volume of feed liquid.
79se,
93zr,
107the schematic diagram that the mechanical part of the associating extraction element of Pd is connected with control section as shown in Figure 2.
In the practical operation of the present embodiment, be to add feed liquid to be extracted (1mol/L nitric acid medium) in the DMG post good to pre-equilibration, Pd is adsorbed on the DMG post, feed liquid after absorption Pd is controlled corresponding magnetic valve by remote controllers and peristaltic pump is gone to the silica gel chromatography post, the Pd of absorption with 2:1 An Shui ?the methyl alcohol desorb, product-collecting groove 5 at the DMG post is collected Pd product liquid, and waste liquid is discharged into to waste collection groove 6; Then, after feed liquid enters the silica gel chromatography post, Zr wherein is adsorbed, and goes to Bis-II chromatograph post after absorption, and the Zr of absorption, by the desorb of 10mol/L nitric acid, collects Zr product liquid and waste liquid in the silica gel chromatography column bottom; Finally, feed liquid enters absorption Se wherein after Bis-II chromatograph post, and utilize 0.05mol/L Ban Guang An Suan ?the desorb of 0.1mol/L hydrochloric acid, collect Se product liquid and waste liquid in Bis-II chromatograph column bottom.The waste liquid of above three pillars is concentrated and is discharged into waste collection groove 6.
The separating resulting of three kinds of nucleic is listed table 1 in.Can find out, apply this associating extraction element and can obtain that radioactive level reduces greatly simultaneously
79se,
93zr,
107the Pd product, the yield of three kinds of nucleic is 85%, 82% and 93% respectively.
Table 1
137the decontamination factor of Cs and total beta activity
Experiment shows: (1) this device can be realized
79se,
93zr,
107pd combines extraction, has realized automation control, greatly reduces the generation of radwaste.(3) utilize this separator pair
79se,
93zr,
107pd is combined while extracting, right
137the decontamination factor of Cs and total β reaches 10
3, can obtain that radioactive level reduces greatly
79se,
93zr,
107the thick product of Pd.
Identical with the described device in embodiment 1, the order of different is three chromatograph posts is followed successively by silica gel chromatography post, Bis-II chromatograph post, DMG chromatograph post, and it is right to realize respectively
93zr,
79se,
107the extraction of Pd.The rate of recovery of three kinds of nucleic is all higher than 85%, right
137the decontamination factor of Cs and total β reaches 2*10
3above.
Embodiment 3
Identical with the described device in embodiment 1, the order of different is three chromatograph posts be followed successively by Bis ?II chromatograph post, silica gel chromatography post, DMG chromatograph post, it is right to realize respectively
79se,
93zr,
107the extraction of Pd.The rate of recovery of three kinds of nucleic is all higher than 83%, right
137the decontamination factor of Cs and total β reaches 2.5*10
3above.
Claims (4)
1.
79se,
93zr,
107pd combines extraction element, it is characterized in that, this device is comprised of mechanical part and control section, and wherein mechanical part mainly consists of hopper unit (1), chromatograph pole unit (4), electromagnetic valve unit (2), peristaltic pump unit (3); Control section is comprised of computer and controller; Wherein hopper unit (1) is positioned at the top of electromagnetic valve unit (2), between the chromatograph post, by acidproof corrosion resistant pipeline, connects.
2. according to claim 1
79se,
93zr,
107pd combines extraction element, it is characterized in that, the hopper unit (1) of this device is comprised of 5 hoppers, and the material of hopper is lucite.
3. according to claim 1
79se,
93zr,
107pd combines extraction element, it is characterized in that, chromatograph pole unit (4) is comprised of DMG chromatograph post, silica gel chromatography post, Bis-II chromatograph post, and three kinds of chromatograph posts can be arranged with random order.
4. according to claim 1
79se,
93zr,
107pd combines extraction element, it is characterized in that, control section is comprised of computer and controller, by the switch of controller and computer control electromagnetic valve unit (2) and peristaltic pump unit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734968 CN203355359U (en) | 2012-12-27 | 2012-12-27 | Combined extraction device of <79> Se, <93> Zr and <107> Pd |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734968 CN203355359U (en) | 2012-12-27 | 2012-12-27 | Combined extraction device of <79> Se, <93> Zr and <107> Pd |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203355359U true CN203355359U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734968 Expired - Lifetime CN203355359U (en) | 2012-12-27 | 2012-12-27 | Combined extraction device of <79> Se, <93> Zr and <107> Pd |
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| CN (1) | CN203355359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787634A (en) * | 2019-12-06 | 2020-02-14 | 原子高科股份有限公司 | Three-column trans-selective molybdenum 99-technetium 99m generator device and separation method |
-
2012
- 2012-12-27 CN CN 201220734968 patent/CN203355359U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787634A (en) * | 2019-12-06 | 2020-02-14 | 原子高科股份有限公司 | Three-column trans-selective molybdenum 99-technetium 99m generator device and separation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |