CN1375103A - Process for recycling ionic liquids - Google Patents
Process for recycling ionic liquids Download PDFInfo
- Publication number
- CN1375103A CN1375103A CN00811751A CN00811751A CN1375103A CN 1375103 A CN1375103 A CN 1375103A CN 00811751 A CN00811751 A CN 00811751A CN 00811751 A CN00811751 A CN 00811751A CN 1375103 A CN1375103 A CN 1375103A
- Authority
- CN
- China
- Prior art keywords
- ionic liquid
- product
- aforementioned
- chloride
- ethyl imidazol
- 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
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004064 recycling Methods 0.000 title description 4
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000000356 contaminant Substances 0.000 claims abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 13
- 230000004992 fission Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 11
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 10
- 150000002500 ions Chemical class 0.000 claims description 10
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims description 8
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- -1 1-ethyl imidazol Chemical compound 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 229940050176 methyl chloride Drugs 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 4
- 238000012958 reprocessing Methods 0.000 claims description 4
- 239000002915 spent fuel radioactive waste Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000003153 chemical reaction reagent Substances 0.000 claims description 2
- 239000003758 nuclear fuel Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims 1
- 239000000376 reactant Substances 0.000 abstract 1
- 229910052770 Uranium Inorganic materials 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052778 Plutonium Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000002460 imidazoles Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 2
- YSNRFLSZENCKRS-UHFFFAOYSA-M 1,3-diethylimidazol-1-ium;chloride Chemical compound [Cl-].CCN1C=C[N+](CC)=C1 YSNRFLSZENCKRS-UHFFFAOYSA-M 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000013383 initial experiment Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/42—Reprocessing of irradiated fuel
- G21C19/44—Reprocessing of irradiated fuel of irradiated solid fuel
- G21C19/48—Non-aqueous processes
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Extraction Or Liquid Replacement (AREA)
- Removal Of Specific Substances (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A method for treating a spent ionic liquid composition includes heating the composition to form a partial decomposition product thereof. The product is separated from composition contaminants and the separated product is reacted with a reactant to regenerate the ionic liquid.
Description
The field of the invention
The present invention relates to handle useless ion liquid method.The ionic liquid of hereinafter mentioning is the ionic liquid that was used in the reprocessing nuclear fuel, but it should be understood that the present invention can be used in all ionic liquid technical fields, is included in nuclear industry application in addition.
Background of the present invention
The ionic liquid that does not contain molecular solvent is at first open in a series of US patents (24446331,2446339,2446350) by Hurley and Wier.In general, ionic liquid is a salt, the potpourri of salt, or produce the potpourri of the component of one or more salt, it melts under the temperature that is lower than room temperature or a little higher than room temperature.(term used herein " salt " is meant the material of being made up of kation and anionic species fully).This class I liquid I is known as " ionic liquid ", though this term sometimes is used in reference to the salt that melts under higher temperature.In this manual, term " ionic liquid " is meant the salt that melts under 100 ℃ temperature at the most.
Pendent patent application PCT/GB99/00246 discloses the method for reprocessing spent nuclear fuel, and it comprises that the ingredient with spent fuel or spent fuel is dissolved in the ionic liquid, and other component in fissile material and the radioactive fuel is separated basically.The ion liquid subsequent treatment that is obtained is also disclosed, by solvent extraction or electrochemical treatment to reclaim dissolved uranium or plutonium.
Except easy fissioner, useless ionic liquid also contains the fission product that dissolves with uranium.People have paid bigger effort and have developed a kind of in the cheap approach of expense of removing these pollutants after mixture separation goes out uranium with the form that is fit to convert it into the stabilize waste form.
Can realize removing of pollutant by any or combination in many different approaches.Selected fission product such as plutonium can be by applying proper voltage with the electrochemical means extracting.The shortcoming of this method is that electrolysis is expensive process, especially when carrying out on industrial scale.
Fission product can come to extract from ionic liquid in addition or further by adding organic solvent.The interpolation of organic substance causes the precipitation of fission product compound.Sediment can filter out from ionic liquid and be converted to oxide through calcining before consolidation step.Ionic liquid after the cleaning can be recovered then and be applied in the electrorefining.
Burning is another alternative plan of removing pollutant, and wherein useless ionic liquid is heated to and surpasses 200 ℃ temperature.The shortcoming of this process can be measured from the angle of economy; The burning of imidazole salts causes the generation of carbon dioxide, water and oxides of nitrogen potpourri (NOx).This means that ionic liquid can not recycle and in fact catching hell.
Because a factor of maximum cost is the cost of essential raw material in the industry, helping by recycling any method that at utmost reduces these costs obviously is the alternative plan that has more temptation.
Narration of the present invention
According to the invention provides the method for handling the useless ionic liquid compositions that comprises ionic liquid and pollutant, this method comprises that the described ionic liquid of heating is to form its partially decomposed product, with this product and described separated from contaminants, allow the reaction of separated products and reaction reagent then with this ionic liquid of regenerating.
When the 1-methyl-when 3-ethyl imidazol(e) chloride under reduced pressure heated, the decomposition of ion liquid section ground obtained 1-methylimidazole, 1-ethyl imidazol(e), methyl chloride and chloric ethane.In initial experiment, this pyrolysis product was at room temperature placed 2 days and was reacted again and obtains 1,3-methylimidazole chloride, 1,3-diethyl imidazolium chloride and 1-methyl-muriatic potpourri of 3-ethyl imidazol(e).These results are wonderful, are considered to destroy recycling ion liquid any current potential because thermal decomposition is former.Yet,, be used to clean ion liquid thermal decomposition and it seems it is attractive economically selection scheme now for these experiments.
Preferably, make decomposition product with at least a other decomposition product and separated from contaminants.Separation can realize by the volatilization in heating process.In one embodiment of the invention, partially decomposed product separates with at least a other decomposition product by distillation.
Preferably, ionic liquid is at 200-300 ℃ or more preferably be heated under 2mmHg or lower low pressure under 220 ℃-250 ℃ the temperature.
Of the present invention being described in detail
Useless ionic liquid for example 1-methyl-3-ethyl imidazol(e) chloride is polluted by fission product, also may be polluted by organic radiolytic product, and need handle, in order that to be suitable for converting it into the form recovery fission product of stabilize waste form.
In the method according to the invention, heating under reduced pressure under the temperature of ionic liquid in 200 ℃ of-300 ℃ of scopes.In preferred embodiments, 1-methyl-3-ethyl imidazol(e) had been lower than under the pressure of 2mmHg under 220-250 ℃ temperature heating 2-3 hour.The only decomposition of part takes place in these conditions permit ionic liquids, therefore allows to reclaim the useful constituent compound as much as possible in the ionic liquid.It should be understood that imidazole salts that condition that part decomposes replaces for difference all is different with different mixtures for them.
Ion liquid pyrolysis causes the generation of volatility pyrolysis product.For 1-methyl-3-ethyl imidazol(e) chloride, these products are 1-methylimidazoles, 1-ethyl imidazol(e), methyl chloride and chloric ethane.Chloric ethane resolves into hydrogen chloride and ethene then.
Volatile products are collected in the cold-trap, and the follow-up distillation of potpourri can be isolated each component.The volatile component of tool is hydrogen chloride and ethene.Hydrogen chloride can use the oxyhydroxide scrubber to wash from system, and ethene can be bottled or be burnt as accessory substance.
The 1-methylimidazole can separate by distilling with the 1-ethyl imidazol(e), so that specific ionic liquid 1-methyl-3-ethyl imidazol(e) chloride obtains regeneration.It should be understood that at 1-methyl-3-ethyl imidazol(e) chloride, 1,3-methylimidazole chloride and 1, the technology that the potpourri of 3-diethyl imidazolium chloride is operated is not need detachment process.
Specific if desired ionic liquid 1-methyl-3-ethyl imidazol(e) chloride, isolated 1-methylimidazole and chloric ethane reaction, thus make initial ionic liquid 1-methyl-3-ethyl imidazol(e) chloride regeneration.Because by decomposing, some chloric ethanes have lost, add fresh chloric ethane with this ionic liquid of holomorphosis.1-ethyl imidazol(e) and methyl chloride react and make ionic liquid 1-methyl-3-ethyl imidazol(e) chloride regeneration.
In a preferred embodiment of the invention, the fission product residue changes into stable waste formation through calcining.In another embodiment, fission product residue and acid reaction and being converted to can be made the discarded suitable form of handling.
Claims (23)
1. handle the method for the useless ionic liquid compositions that comprises ionic liquid and pollutant, this method comprises that the described ionic liquid of heating is to form its partially decomposed product, this product and described separated from contaminants are opened, allowed separated products and the described ionic liquid of reaction reagent reaction regeneration then.
2. according to the process of claim 1 wherein that product and at least a other decomposition product that described part is decomposed open with described separated from contaminants together.
3. according to the method for claim 2 or claim 3, the product that wherein said part is decomposed is separated by distillation and at least a other decomposition product.
4. according to any one method in the aforementioned claim, the product that wherein said part is decomposed reacts with at least a other decomposition product described ionic liquid is regenerated.
5. according to any one method in the aforementioned claim, wherein said separation is to realize by the volatilization in heating process.
6. according to any one method in the aforementioned claim, wherein said ionic liquid is 1-methyl-3-ethyl imidazol(e) chloride.
7. according to the method for claim 6, the product that wherein said part is decomposed is the 1-methylimidazole, 1-ethyl imidazol(e), the potpourri of methyl chloride and chloric ethane.
8. according to the method for claim 7, wherein 1-methylimidazole and chloric ethane react the 1-methyl of regenerating-3-ethyl imidazol(e) chloride.
9. according to the method for claim 5, the product that wherein said part is decomposed is the 1-ethyl imidazol(e).
10. according to the method for claim 9, wherein 1-ethyl imidazol(e) and methyl chloride react the 1-methyl of regenerating-3-ethyl imidazol(e) chloride.
11. according to any one method in the aforementioned claim, wherein said ionic liquid under reduced pressure is heated.
12. according to the method for claim 11, wherein said pressure is 2mmHg or lower.
13. according to any one method in the aforementioned claim, wherein said ionic liquid is heated to 200-300 ℃ temperature.
14. according to the method for claim 13, wherein said ionic liquid is heated to 220-250 ℃ temperature.
15. according to any one method among the claim 3-14, wherein the volatile products that obtain from described ion liquid volatilization are collected in the cold-trap.
16. according to any one method in the aforementioned claim, wherein hydrogen chloride is by heating that described ionic liquid produces and by using the oxyhydroxide scrubber from system it to be disposed.
17., wherein produce ethene by heating described ionic liquid according to any one method in the aforementioned claim.
18. according to the method for claim 17, wherein said ethene is bottled or is burnt as accessory substance.
19. reprocessing nuclear fuel and the technology of handling the waste salt that is polluted by fission product, this technology comprises the method for arbitrary aforementioned claim.
20., wherein described fission product is polluted residue and separates and before waste treatment, calcine according to the technology of claim 19.
21., wherein before waste treatment, make described fission product pollute residue and acid reaction according to the technology of claim 19.
22. the purposes of thermal decomposition in useless ion liquid processing, wherein decomposition product is used to ion liquid regeneration.
23. according to the purposes of claim 23, wherein said ionic liquid is used to the reprocessing of spent nuclear fuel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9919606.5 | 1999-08-19 | ||
| GB9919606A GB9919606D0 (en) | 1999-08-19 | 1999-08-19 | Process for recycling ionic liquids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1375103A true CN1375103A (en) | 2002-10-16 |
Family
ID=10859412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00811751A Pending CN1375103A (en) | 1999-08-19 | 2000-08-21 | Process for recycling ionic liquids |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1218890A2 (en) |
| JP (1) | JP2003507185A (en) |
| CN (1) | CN1375103A (en) |
| AU (1) | AU7018700A (en) |
| GB (1) | GB9919606D0 (en) |
| WO (1) | WO2001015175A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925408A (en) * | 2007-12-28 | 2010-12-22 | 雪佛龙美国公司 | Process for ionic liquid catalyst regeneration |
| CN105597630B (en) * | 2012-02-14 | 2018-02-23 | 雪佛龙美国公司 | Used ionic-liquid catalyst is hydrolyzed for disposal |
| CN112680609A (en) * | 2020-12-14 | 2021-04-20 | 中国人民解放军63653部队 | Plutonium recovery ionic liquid extractant and method for extracting and separating plutonium from plutonium-containing waste liquid |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6991718B2 (en) | 2001-11-21 | 2006-01-31 | Sachem, Inc. | Electrochemical process for producing ionic liquids |
| AU2003263890A1 (en) | 2002-08-16 | 2004-03-03 | Sachem, Inc. | Lewis acid ionic liquids |
| US8247117B2 (en) * | 2004-12-27 | 2012-08-21 | National Institute Of Advanced Industrial Science And Technology | Ionic liquid |
| JP4652359B2 (en) * | 2007-03-09 | 2011-03-16 | 日本合成化学工業株式会社 | Decomposition treatment method of ionic liquid |
| JP4753141B2 (en) * | 2007-08-01 | 2011-08-24 | 独立行政法人 日本原子力研究開発機構 | Method for dissolving and separating uranium using ionic liquid, and method for recovering uranium using the same |
| KR100974890B1 (en) | 2008-04-18 | 2010-08-11 | 인하대학교 산학협력단 | A recycling process of ionic liquids using microwave irradiation |
| JP4843106B2 (en) * | 2011-01-24 | 2011-12-21 | 独立行政法人日本原子力研究開発機構 | Uranium recovery method using ionic liquid |
| JP5734004B2 (en) * | 2011-02-07 | 2015-06-10 | 三菱重工業株式会社 | Method and apparatus for treating plutonium-containing waste liquid |
| WO2013098056A1 (en) | 2011-12-28 | 2013-07-04 | Lanxess Deutschland Gmbh | Purification of optionally hydrogenated nitrile rubber |
| WO2014184803A2 (en) | 2013-04-19 | 2014-11-20 | Reliance Industries Limited | A process for regenerating ionic compound |
| JP2020094979A (en) | 2018-12-14 | 2020-06-18 | 日立Ｇｅニュークリア・エナジー株式会社 | Organic iodine collection apparatus and organic iodine collection method |
| JP7470491B2 (en) | 2019-02-25 | 2024-04-18 | 日立Ｇｅニュークリア・エナジー株式会社 | Organic iodine remover |
| JP7281393B2 (en) | 2019-12-18 | 2023-05-25 | 日立Ｇｅニュークリア・エナジー株式会社 | Organic iodine remover and organic iodine remover |
| JP7373454B2 (en) | 2020-04-10 | 2023-11-02 | 日立Ｇｅニュークリア・エナジー株式会社 | Organic iodine collection device |
| US11578278B2 (en) | 2020-08-01 | 2023-02-14 | Honeywell International Inc. | Renewable transportation fuel process with thermal oxidation system |
| US11780795B2 (en) | 2020-08-04 | 2023-10-10 | Honeywell International Inc. | Cumene-phenol complex with thermal oxidation system |
| US11578020B2 (en) | 2020-08-04 | 2023-02-14 | Honeywell International Inc. | Naphtha complex with thermal oxidation system |
| US12017984B2 (en) | 2020-08-04 | 2024-06-25 | Honeywell International Inc. | Propane/butane dehydrogenation complex with thermal oxidation system |
| US11492306B2 (en) * | 2020-09-30 | 2022-11-08 | Honeywell International Inc. | Alkylation process with thermal oxidation system |
| JP2024025247A (en) | 2022-08-10 | 2024-02-26 | 日立Ｇｅニュークリア・エナジー株式会社 | filter vent device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9719551D0 (en) * | 1997-09-16 | 1997-11-19 | British Nuclear Fuels Plc | Treatment of molten salt reprocessing wastes |
| GB9802852D0 (en) * | 1998-02-11 | 1998-04-08 | British Nuclear Fuels Plc | Nuclear fuel reprocessing |
-
1999
- 1999-08-19 GB GB9919606A patent/GB9919606D0/en not_active Ceased
-
2000
- 2000-08-21 CN CN00811751A patent/CN1375103A/en active Pending
- 2000-08-21 WO PCT/GB2000/003234 patent/WO2001015175A2/en not_active Application Discontinuation
- 2000-08-21 EP EP20000958764 patent/EP1218890A2/en not_active Withdrawn
- 2000-08-21 AU AU70187/00A patent/AU7018700A/en not_active Abandoned
- 2000-08-21 JP JP2001519449A patent/JP2003507185A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925408A (en) * | 2007-12-28 | 2010-12-22 | 雪佛龙美国公司 | Process for ionic liquid catalyst regeneration |
| CN105597630B (en) * | 2012-02-14 | 2018-02-23 | 雪佛龙美国公司 | Used ionic-liquid catalyst is hydrolyzed for disposal |
| CN112680609A (en) * | 2020-12-14 | 2021-04-20 | 中国人民解放军63653部队 | Plutonium recovery ionic liquid extractant and method for extracting and separating plutonium from plutonium-containing waste liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9919606D0 (en) | 1999-10-20 |
| WO2001015175A2 (en) | 2001-03-01 |
| JP2003507185A (en) | 2003-02-25 |
| WO2001015175A3 (en) | 2002-02-21 |
| EP1218890A2 (en) | 2002-07-03 |
| AU7018700A (en) | 2001-03-19 |
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