DE2621795A1 - Extraktionsverfahren - Google Patents
ExtraktionsverfahrenInfo
- Publication number
- DE2621795A1 DE2621795A1 DE19762621795 DE2621795A DE2621795A1 DE 2621795 A1 DE2621795 A1 DE 2621795A1 DE 19762621795 DE19762621795 DE 19762621795 DE 2621795 A DE2621795 A DE 2621795A DE 2621795 A1 DE2621795 A1 DE 2621795A1
- Authority
- DE
- Germany
- Prior art keywords
- aqueous
- solution
- plutonium
- organic
- values
- 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
- 238000000605 extraction Methods 0.000 title description 18
- 238000000034 method Methods 0.000 claims description 42
- 229910052778 Plutonium Inorganic materials 0.000 claims description 39
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 claims description 37
- 239000000243 solution Substances 0.000 claims description 30
- 229910052768 actinide Inorganic materials 0.000 claims description 22
- 150000001255 actinides Chemical class 0.000 claims description 22
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 239000012527 feed solution Substances 0.000 claims description 17
- 239000007857 degradation product Substances 0.000 claims description 11
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 9
- 229910001447 ferric ion Inorganic materials 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- -1 Iron (III) ions Chemical class 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- NILJXUMQIIUAFY-UHFFFAOYSA-N hydroxylamine;nitric acid Chemical group ON.O[N+]([O-])=O NILJXUMQIIUAFY-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000012074 organic phase Substances 0.000 description 16
- JYFHYPJRHGVZDY-UHFFFAOYSA-N Dibutyl phosphate Chemical compound CCCCOP(O)(=O)OCCCC JYFHYPJRHGVZDY-UHFFFAOYSA-N 0.000 description 15
- 238000000926 separation method Methods 0.000 description 14
- 229910052770 Uranium Inorganic materials 0.000 description 13
- 239000002244 precipitate Substances 0.000 description 13
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 12
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 12
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 9
- 238000000638 solvent extraction Methods 0.000 description 9
- 239000008346 aqueous phase Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 7
- 229910017604 nitric acid Inorganic materials 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- WJWSFWHDKPKKES-UHFFFAOYSA-N plutonium uranium Chemical compound [U].[Pu] WJWSFWHDKPKKES-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- BNMJSBUIDQYHIN-UHFFFAOYSA-N butyl dihydrogen phosphate Chemical compound CCCCOP(O)(O)=O BNMJSBUIDQYHIN-UHFFFAOYSA-N 0.000 description 3
- FYNAIXQFLXHSFJ-UHFFFAOYSA-K dibutyl phosphate iron(3+) Chemical compound [Fe+3].CCCCOP([O-])(=O)OCCCC.CCCCOP([O-])(=O)OCCCC.CCCCOP([O-])(=O)OCCCC FYNAIXQFLXHSFJ-UHFFFAOYSA-K 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- LSPGXFXOXUGRDM-UHFFFAOYSA-L dibutyl phosphate;iron(2+) Chemical compound [Fe+2].CCCCOP([O-])(=O)OCCCC.CCCCOP([O-])(=O)OCCCC LSPGXFXOXUGRDM-UHFFFAOYSA-L 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- CBQMUMVDTQRWGZ-UHFFFAOYSA-J P(=O)(OCCCC)(OCCCC)[O-].[Pu+4].C(CCC)OP(=O)(OCCCC)[O-].C(CCC)OP(=O)(OCCCC)[O-].C(CCC)OP(=O)(OCCCC)[O-] Chemical class P(=O)(OCCCC)(OCCCC)[O-].[Pu+4].C(CCC)OP(=O)(OCCCC)[O-].C(CCC)OP(=O)(OCCCC)[O-].C(CCC)OP(=O)(OCCCC)[O-] CBQMUMVDTQRWGZ-UHFFFAOYSA-J 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 150000001212 Plutonium Chemical class 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G56/00—Compounds of transuranic elements
- C01G56/001—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
- C22B60/026—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries liquid-liquid extraction with or without dissolution in organic solvents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0291—Obtaining thorium, uranium, or other actinides obtaining thorium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0295—Obtaining thorium, uranium, or other actinides obtaining other actinides except plutonium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/04—Obtaining plutonium
-
- 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
- G21C19/46—Aqueous processes, e.g. by using organic extraction means, including the regeneration of these means
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/577,821 US3987145A (en) | 1975-05-15 | 1975-05-15 | Ferric ion as a scavenging agent in a solvent extraction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2621795A1 true DE2621795A1 (de) | 1976-11-25 |
Family
ID=24310292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762621795 Pending DE2621795A1 (de) | 1975-05-15 | 1976-05-15 | Extraktionsverfahren |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3987145A (enExample) |
| JP (1) | JPS5214198A (enExample) |
| BE (1) | BE841665A (enExample) |
| CA (1) | CA1064707A (enExample) |
| DE (1) | DE2621795A1 (enExample) |
| FR (1) | FR2310968A1 (enExample) |
| GB (1) | GB1528415A (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4371504A (en) * | 1977-02-28 | 1983-02-01 | Uranium Recovery Corporation | Extractant and process for extracting uranium wet-process phosphoric acid |
| US4131527A (en) * | 1977-03-30 | 1978-12-26 | The United States Of America As Represented By The United States Department Of Energy | Method for selectively reducing plutonium values by a photochemical process |
| US4293529A (en) * | 1978-10-27 | 1981-10-06 | Uranium Recovery Corporation | Process for recovering uranium from wet-process phosphoric acid using alkyl pyrophosphoric acid extractants |
| US4385037A (en) * | 1980-05-16 | 1983-05-24 | Unc Recovery Corporation | Concentrated sulphuric acid treatment of an alkylphenyl acid phosphate extractant |
| US4652432A (en) * | 1981-02-26 | 1987-03-24 | Prodeco, Inc. | Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
| US4652431A (en) * | 1981-02-26 | 1987-03-24 | Prodeco, Inc. | Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
| JPS59231493A (ja) * | 1983-06-15 | 1984-12-26 | 住友金属鉱山株式会社 | 低レベル放射性廃液の処理方法 |
| GB8403724D0 (en) * | 1984-02-13 | 1984-03-14 | British Nuclear Fuels Plc | Treating nuclear fuel |
| US4595529A (en) * | 1984-03-13 | 1986-06-17 | The United States Of America As Represented By The Department Of Energy | Solvent wash solution |
| JPS61170528A (ja) * | 1985-01-22 | 1986-08-01 | Sutaaroi Sangyo Kk | コバルトの剥離回収方法 |
| US5047566A (en) * | 1986-08-14 | 1991-09-10 | Minnesota Mining And Manufacturing Company | Colorless ferric alkylphosphates |
| FR2624755B1 (fr) * | 1987-12-18 | 1991-10-11 | Commissariat Energie Atomique | Procede de reextraction en solution aqueuse du plutonium present dans un solvant organique, utilisable notamment pour la partition uranium plutonium |
| JPH0495899A (ja) * | 1990-08-14 | 1992-03-27 | Power Reactor & Nuclear Fuel Dev Corp | 核燃料サイクルから発生する使用済溶媒の抽出分離方法 |
| US5135728A (en) * | 1992-01-03 | 1992-08-04 | Karraker David G | Method for dissolving delta-phase plutonium |
| RU2241678C2 (ru) * | 2001-04-09 | 2004-12-10 | Открытое акционерное общество "Ульбинский металлургический завод" | Способ регенерации органической фазы, используемой при экстракции урана |
| CN102776372B (zh) * | 2012-08-21 | 2013-10-30 | 中国原子能科学研究院 | 铀、钚、镎共萃取的方法 |
| JP6260900B2 (ja) * | 2014-02-19 | 2018-01-17 | 三菱重工業株式会社 | 放射性廃液処理方法 |
| JP6366316B2 (ja) * | 2014-03-25 | 2018-08-01 | 三菱重工業株式会社 | 廃液処理システム及び廃液処理方法 |
| JP2016031296A (ja) * | 2014-07-29 | 2016-03-07 | 三菱重工業株式会社 | 廃液処理システム及び廃液処理方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2815262A (en) * | 1952-06-24 | 1957-12-03 | Grover L Bridger | Separation process for thorium salts |
| US2990240A (en) * | 1952-08-11 | 1961-06-27 | Charles V Ellison | Process for segregating uranium from plutonium and fission-product contamination |
| US2885260A (en) * | 1957-04-23 | 1959-05-05 | William J Maraman | Method for decontamination of reactor solutions |
| US3214239A (en) * | 1962-07-02 | 1965-10-26 | Kerr Mc Gee Oil Ind Inc | Recovery of metal values from aqueous solution by solvent extraction with an organo phosphorus extractant |
| BE635254A (enExample) * | 1962-08-17 | 1900-01-01 | ||
| FR90703E (fr) * | 1964-06-19 | 1968-02-02 | Commissariat Energie Atomique | Procédé de purification et de concentration simultanées du plutonium et plutonium obtenu selon ce procédé |
| US3378352A (en) * | 1965-12-15 | 1968-04-16 | Dow Chemical Co | Process for extracting thorium and rare earths |
| US3463619A (en) * | 1968-07-12 | 1969-08-26 | Atomic Energy Commission | Solvent extraction process for purifying americium and curium |
| US3574532A (en) * | 1969-03-20 | 1971-04-13 | Atomic Energy Commission | Wash treatment to restore the degraded d2ehpa-tbp used in fission product extraction |
| US3708508A (en) * | 1971-04-09 | 1973-01-02 | Atomic Energy Commission | Method for the purification and recovery of tributyl phosphate used in reprocessing nuclear fuel |
| US3943204A (en) * | 1974-02-05 | 1976-03-09 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method for improving the extraction properties of a tributyl phosphate solution |
-
1975
- 1975-05-15 US US05/577,821 patent/US3987145A/en not_active Expired - Lifetime
-
1976
- 1976-03-29 GB GB1248676A patent/GB1528415A/en not_active Expired
- 1976-03-31 CA CA249,303A patent/CA1064707A/en not_active Expired
- 1976-05-10 BE BE166908A patent/BE841665A/xx unknown
- 1976-05-12 FR FR7614294A patent/FR2310968A1/fr active Granted
- 1976-05-15 JP JP5599376A patent/JPS5214198A/ja active Pending
- 1976-05-15 DE DE19762621795 patent/DE2621795A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2310968A1 (fr) | 1976-12-10 |
| FR2310968B1 (enExample) | 1980-08-29 |
| BE841665A (fr) | 1976-09-01 |
| GB1528415A (en) | 1978-10-11 |
| US3987145A (en) | 1976-10-19 |
| CA1064707A (en) | 1979-10-23 |
| JPS5214198A (en) | 1977-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2621795A1 (de) | Extraktionsverfahren | |
| DE2210106C2 (de) | Verfahren zur selektiven Extraktion von Metallionen aus wäßrigen Lösungen | |
| DE1592427A1 (de) | Aufarbeitung von bestrahltem Kernbrennstoff | |
| DE1929512C3 (de) | Verfahren zur Aufbereitung von bestrahltem Kernbrennstoff | |
| DE3332954C2 (enExample) | ||
| DE2154655C3 (de) | Verfahren zur Auftrennung von Uran, Transurane und die als Spaltprodukte von Kernbrennstoffen auftretenden Elemente enthaltenden Gemischen durch Gegen- oder Querstromelektrolyse | |
| DE4220207A1 (de) | Kombiniertes transuran-strontium-auszugsverfahren | |
| DE2451595A1 (de) | Verfahren zur trennung von uran von einer uranylionen und verunreinigende kationen enthaltenden waessrigen fluessigkeit | |
| DE3784647T2 (de) | Verfahren zum trennen von technetium, das sich in einer organischen loesung mit zirkon und mindestens einem anderen metall, wie zum beispiel uran oder plutonium, befindet, verwendbar insbesondere fuer die wiederaufarbeitung von bestrahlten kernbrennstoffen. | |
| EP0098510B1 (de) | Verfahren zur selektiven Trennung des Plutoniums von Uran und anderen Metallen | |
| DE3028024A1 (de) | Verfahren zum abtrennen von plutoniumen aus waessrigen, schwefelsauren loesungen | |
| DE3546128C2 (enExample) | ||
| EP0170795B1 (de) | Verfahren zur Rückgewinnung von Uran-Werten in einem extraktiven Wiederaufarbeitungsprozess für bestrahlte Kernbrennstoffe | |
| DE1288561B (de) | Vorrichtung zur mehrstufigen Fluessig-fluessig-Gegenstromextraktion, insbesondere von spaltbarem Material | |
| DE2504786A1 (de) | Verfahren zur verbesserung der extraktionseigenschaften einer tributylphosphatloesung, insbesondere beim verfahren zur trennung von plutoniumund uranwerten | |
| DE2365114C2 (de) | Verfahren zum Reinigen von Plutonium und/oder Neptunium enthaltenden Lösungen durch Abtrennen von Plutonium und/oder Neptunium | |
| DE3639066A1 (de) | Verfahren zur verbesserung der kritikalitaetssicherheit in einem fluessig-fluessig-extraktionsprozess fuer bestrahlte kernbrenn- und/oder brutstoffe | |
| DE2460145C2 (de) | Verfahren zur Abtrennung von Neptunium aus bestrahlten Kernbrenn- und/oder Brutstoffen | |
| DE3101702A1 (de) | Verfahren zur wiedergewinnung von uran aus nassverfahrens-phosphorsaeure | |
| DE2057760A1 (de) | Verfahren zur verbesserten Spaltproduktabtrennung bei der waessrigen Wiederaufarbeitung von abgebrannten Kernbrennstoffen | |
| DE1592228C3 (de) | Verfahren zur kontinuierlichen Gewinnung von gereinigten und konzentrierten Plutoniumlösungen | |
| AT215961B (de) | Verfahren zur Reduktion des Plutoniums, insbesondere in Verbindung mit der Trennung des Plutoniums von Uran | |
| DE1519753C3 (enExample) | ||
| DE2219366A1 (de) | Verfahren zur Abtrennung von Uran von Plutonium | |
| DE2423793C3 (de) | Verfahren zum Abtrennen von Tritium in einer Anlage zur Aufbereitung bestrahlter Kernbrennstoffe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHN | Withdrawal |