GB1301376A - - Google Patents
Info
- Publication number
- GB1301376A GB1301376A GB1301376DA GB1301376A GB 1301376 A GB1301376 A GB 1301376A GB 1301376D A GB1301376D A GB 1301376DA GB 1301376 A GB1301376 A GB 1301376A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- dispersion
- valency
- hno
- zone
- 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.)
- Expired
Links
- 239000000243 solution Substances 0.000 abstract 8
- 239000006185 dispersion Substances 0.000 abstract 6
- 229910052751 metal Inorganic materials 0.000 abstract 6
- 239000002184 metal Substances 0.000 abstract 6
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 abstract 4
- 239000007864 aqueous solution Substances 0.000 abstract 4
- -1 alkyl phosphate Chemical compound 0.000 abstract 3
- 150000002739 metals Chemical class 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- 229910002651 NO3 Inorganic materials 0.000 abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 229910052770 Uranium Inorganic materials 0.000 abstract 1
- 238000013019 agitation Methods 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000003957 anion exchange resin Substances 0.000 abstract 1
- 239000008346 aqueous phase Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- LAWOZCWGWDVVSG-UHFFFAOYSA-N dioctylamine Chemical compound CCCCCCCCNCCCCCCCC LAWOZCWGWDVVSG-UHFFFAOYSA-N 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000003350 kerosene Substances 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 239000002265 redox agent Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 229910052707 ruthenium Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 abstract 1
- 125000005289 uranyl group Chemical group 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 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
- C01G56/007—Compounds of transuranic elements
- C01G56/008—Compounds of neptunium
-
- 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
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G56/00—Compounds of transuranic elements
- C01G56/004—Compounds of plutonium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
1301376 Electrolysing polyvalent metals ALLIED CHEMICAL CORP 13 April 1970 [14 April 1969] 17493/70 Heading C7B [Also in Division G6] The valency of one or more polyvalent metals, e.g. U, Pu, Np, is changed by passing an electric current through a dispersion of an organic solution comprising the metal(s) and preferably an alkyl phosphate and a hydrocarbon diluent, with an immiscible aqueous electrolyte solution, e.g. HNO 3 or NaNO 3 solution comprising hydrazine, in an electrolytic cell 1 separated by a porous membrane 4 into cathode and anode zones, the dispersion being in the cathode zone 3 if the valency is to be reduced and in the anode zone 2 is the valency is to be increased. The immiscible aqueous solution may be a preferential solvent for (one of) the metal(s) in a lower or higher valency state. The one or more metals of changed valency state such as Pu<SP>3+</SP> from Pu<SP>4</SP><SP>+</SP> or Np<SP>5</SP><SP>+</SP> from Np<SP>4+</SP> may be separated by transfer to the aqueous solution. The dispersion may be formed by agitation with a stirrer 12. The membrane 4 may be of alumina or permeable cationic or anionic exchange resin in a polyethylene or vinyl resin. e.g. a solution of uranyl (U<SP>6+</SP>) nitrate and tetravalent Pu nitrate in tributyl phosphate and kerosene (or dodecane or gasoline) may be charged to the cathode zone containing an aqueous solution of HNO 3 and hydrazine for separating Pu, or a solution of Pu<SP>4+</SP> and Np<SP>4+</SP> in the same solvent may be charged to the anode zone containing HNO 3 solution for separating Np. Organic solutions containing U and/or Pu and trace impurities, e.g. of Ru, Zr, and/or Nb, may be purified by forming a dispersion with HNO 3 solution in the anode zone. Other solvents for the organic solution include ketones e.g. hexone, or amines e.g. dioctylamine. The electrodes 5, 6 may be of Pt, Ta, Nb or C. The cell may be cooled and/or heated externally and internally. The aqueous solution separated from the dispersion drawn off may be recycled to the cell to increase the concentration of metal in the aqueous phase as described in Specification No. 1301375. For reducing the valency of Pu in the dispersion in the cathode zone, hexavalent U may be added as a redox agent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81571469A | 1969-04-14 | 1969-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1301376A true GB1301376A (en) | 1972-12-29 |
Family
ID=25218617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1301376D Expired GB1301376A (en) | 1969-04-14 | 1970-04-13 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3616276A (en) |
| JP (1) | JPS4915549B1 (en) |
| BE (1) | BE748151A (en) |
| CA (1) | CA974476A (en) |
| DE (2) | DE2065152A1 (en) |
| FR (1) | FR2041169B1 (en) |
| GB (1) | GB1301376A (en) |
| NL (1) | NL7003805A (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3770612A (en) * | 1970-08-24 | 1973-11-06 | Allied Chem | Apparatus for electrolytic oxidation or reduction, concentration, and separation of elements in solution |
| US3755114A (en) * | 1971-04-14 | 1973-08-28 | Hooker Chemical Corp | Decreasing the metallic content of liquids by an electrochemical technique |
| DE2263782C3 (en) * | 1972-12-28 | 1980-12-11 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Device for reducing plutonium and / or uranium contained in the aqueous phase |
| JPS517736U (en) * | 1974-07-04 | 1976-01-20 | ||
| FR2340766A1 (en) * | 1976-02-13 | 1977-09-09 | Commissariat Energie Atomique | METHOD AND DEVICE FOR ISOTOPIC SEPARATION OF URANIUM |
| JPS5367939U (en) * | 1976-11-10 | 1978-06-07 | ||
| FR2433587A1 (en) * | 1978-08-17 | 1980-03-14 | Rhone Poulenc Ind | PROCESS FOR RECOVERY OF URANIUM CONTAINED IN AN ORGANIC PHASE |
| FR2450233A1 (en) * | 1979-02-28 | 1980-09-26 | Rhone Poulenc Ind | PROCESS FOR RECOVERY OF URANIUM CONTAINED IN AN IMPURE PHOSPHORIC ACID |
| US4243494A (en) * | 1979-04-19 | 1981-01-06 | Kerr-Mcgee Corporation | Process for oxidizing a metal of variable valence by controlled potential electrolysis |
| DE2929122A1 (en) * | 1979-07-18 | 1981-02-05 | Alkem Gmbh | METHOD FOR ELECTROCHEMICALLY ADJUSTING THE PU (VI) OXIDATION LEVEL |
| US4279705A (en) * | 1980-02-19 | 1981-07-21 | Kerr-Mcgee Corporation | Process for oxidizing a metal of variable valence by constant current electrolysis |
| DE3345199A1 (en) * | 1983-12-14 | 1985-06-27 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | METHOD FOR REDUCTIVE PLUTONIUM RETURN EXTRACTION FROM AN ORGANIC REPROCESSING SOLUTION IN AN AQUEOUS, Nitric Acid Solution Using an Electrolysis Stream |
| FR2621578B1 (en) * | 1987-10-13 | 1990-01-05 | Commissariat Energie Atomique | PROCESS FOR REDUCING PUO2 DISSOLUTION, USABLE IN PARTICULAR FOR THE TREATMENT OF ORGANIC WASTE CONTAMINATED BY PUO2 |
| EP0362157B1 (en) * | 1988-09-22 | 1993-09-08 | Tanaka Kikinzoku Kogyo K.K. | Process for converting ionic valence number and apparatus employed therefor |
| JP7362439B2 (en) * | 2019-11-14 | 2023-10-17 | 株式会社東芝 | Electrolytic extraction equipment and electrolytic extraction method |
| CN113293390B (en) * | 2021-04-26 | 2022-07-29 | 西北工业大学 | Method and device for preparing pentavalent uranium through electrochemical reduction in aqueous solution and application of pentavalent uranium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2733200A (en) * | 1956-01-31 | Kunin | ||
| FR90703E (en) * | 1964-06-19 | 1968-02-02 | Commissariat Energie Atomique | Process for simultaneous purification and concentration of plutonium and plutonium obtained according to this process |
-
1969
- 1969-04-14 US US815714A patent/US3616276A/en not_active Expired - Lifetime
-
1970
- 1970-03-17 NL NL7003805A patent/NL7003805A/xx unknown
- 1970-03-24 FR FR707010493A patent/FR2041169B1/fr not_active Expired
- 1970-03-26 CA CA078,514A patent/CA974476A/en not_active Expired
- 1970-03-27 BE BE748151D patent/BE748151A/en not_active IP Right Cessation
- 1970-04-07 DE DE19702065152 patent/DE2065152A1/en active Pending
- 1970-04-07 DE DE2016506A patent/DE2016506B2/en not_active Ceased
- 1970-04-13 GB GB1301376D patent/GB1301376A/en not_active Expired
- 1970-04-14 JP JP45031273A patent/JPS4915549B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2016506A1 (en) | 1972-01-13 |
| FR2041169B1 (en) | 1973-07-13 |
| US3616276A (en) | 1971-10-26 |
| DE2065152A1 (en) | 1972-08-03 |
| JPS4915549B1 (en) | 1974-04-16 |
| NL7003805A (en) | 1970-10-16 |
| DE2016506B2 (en) | 1980-06-04 |
| BE748151A (en) | 1970-08-31 |
| FR2041169A1 (en) | 1971-01-29 |
| CA974476A (en) | 1975-09-16 |
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| GB1301376A (en) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |