GB1281508A - Production of uranium dioxide - Google Patents
Production of uranium dioxideInfo
- Publication number
- GB1281508A GB1281508A GB30139/70A GB3013970A GB1281508A GB 1281508 A GB1281508 A GB 1281508A GB 30139/70 A GB30139/70 A GB 30139/70A GB 3013970 A GB3013970 A GB 3013970A GB 1281508 A GB1281508 A GB 1281508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- uranium
- steam
- hydrogen
- moles
- hexafluoride
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G43/00—Compounds of uranium
- C01G43/01—Oxides; Hydroxides
- C01G43/025—Uranium dioxide
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
- G21C3/623—Oxide fuels
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
1281508 Uranium dioxide from hexafluoride WESTINGHOUSE ELECTRIC CORP 22 June 1970 [18 July 1969] 30139/70 Heading C1A A process for converting uranium hexafluoride to uranium dioxide comprises reacting uranium hexafluoride with steam and hydrogen in the molar proportion of 1:2-8:1-8 respectively in a fluidized bed containing uranyl fluoride and uranium oxide and heated at 475-600‹ C., mixing the reaction products, comprising UO 2 F 2 and U 3 O 8 , with additional steam and hydrogen to provide 4-12 moles steam and 1-6 moles hydrogen per mole of uranium in a second fluidized bed heated at 575-650‹ C., passing the reaction products to a third fluidized bed and reacting with further steam and hydrogen to provide 2-11 moles steam and 0À5-6 moles hydrogen per mole of uranium, and heating at 575-650‹ C.: the uranium dioxide so formed is capable of being formed into pellets having a density of 90-96% of theoretical; recovery is greater than 99À9% uranium. The residual fluorine content may be 0À011-0À015% wt. If desired for a higher purity product a fourth and subsequent fluid bed can be employed under conditions similar to that in the third bed. Reference has been directed by the Comptroller to Specification 1,210,057.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84306269A | 1969-07-18 | 1969-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1281508A true GB1281508A (en) | 1972-07-12 |
Family
ID=25288982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30139/70A Expired GB1281508A (en) | 1969-07-18 | 1970-06-22 | Production of uranium dioxide |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT301488B (en) |
| BE (1) | BE753410A (en) |
| CA (1) | CA926583A (en) |
| CH (1) | CH546207A (en) |
| DE (1) | DE2033433A1 (en) |
| ES (1) | ES381726A1 (en) |
| FI (1) | FI51166C (en) |
| FR (1) | FR2051856B1 (en) |
| GB (1) | GB1281508A (en) |
| NL (1) | NL7010016A (en) |
| SE (1) | SE357948B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5723100A (en) * | 1994-06-03 | 1998-03-03 | British Nuclear Fuels Plc | Uranium oxide production |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4020146A (en) * | 1969-07-18 | 1977-04-26 | Westinghouse Electric Corporation | Production of uranium dioxide |
| US3808145A (en) * | 1971-11-03 | 1974-04-30 | Gen Electric | Ceramic defluorination and reduction process |
| US4053559A (en) * | 1976-06-14 | 1977-10-11 | Westinghouse Electric Corporation | Production of uranium dioxide |
| DE2951451A1 (en) * | 1979-12-20 | 1981-07-16 | Alkem Gmbh, 6450 Hanau | METHOD FOR PRODUCING NUCLEAR FUEL OXIDS |
-
1970
- 1970-06-04 CA CA084628A patent/CA926583A/en not_active Expired
- 1970-06-22 GB GB30139/70A patent/GB1281508A/en not_active Expired
- 1970-06-29 FI FI701822A patent/FI51166C/en active
- 1970-07-06 DE DE19702033433 patent/DE2033433A1/en active Pending
- 1970-07-07 NL NL7010016A patent/NL7010016A/xx not_active Application Discontinuation
- 1970-07-13 BE BE753410D patent/BE753410A/en not_active IP Right Cessation
- 1970-07-13 ES ES381726A patent/ES381726A1/en not_active Expired
- 1970-07-17 SE SE09916/70A patent/SE357948B/xx unknown
- 1970-07-17 FR FR7026516A patent/FR2051856B1/fr not_active Expired
- 1970-07-17 AT AT652570A patent/AT301488B/en not_active IP Right Cessation
- 1970-07-20 CH CH1100770A patent/CH546207A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5723100A (en) * | 1994-06-03 | 1998-03-03 | British Nuclear Fuels Plc | Uranium oxide production |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7010016A (en) | 1971-01-20 |
| CA926583A (en) | 1973-05-22 |
| AT301488B (en) | 1972-09-11 |
| FI51166B (en) | 1976-08-02 |
| ES381726A1 (en) | 1972-11-16 |
| FR2051856A1 (en) | 1971-04-09 |
| CH546207A (en) | 1974-02-28 |
| BE753410A (en) | 1970-12-16 |
| DE2033433A1 (en) | 1971-02-04 |
| FI51166C (en) | 1976-11-10 |
| SE357948B (en) | 1973-07-16 |
| FR2051856B1 (en) | 1974-08-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |