GB786883A - Method of purifying uranium - Google Patents
Method of purifying uraniumInfo
- Publication number
- GB786883A GB786883A GB15795/45A GB1579545A GB786883A GB 786883 A GB786883 A GB 786883A GB 15795/45 A GB15795/45 A GB 15795/45A GB 1579545 A GB1579545 A GB 1579545A GB 786883 A GB786883 A GB 786883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- uranium
- oxide
- boron
- converted
- potassium
- 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
- 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
- C22B60/0286—Obtaining thorium, uranium, or other actinides obtaining uranium refining, melting, remelting, working up uranium
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
In the production of uranium having an extremely low boron content, uranium metal preferably obtained electrolytically is converted to an oxide and the oxide heated to a temperature above 1000 DEG C. for sufficient time for the boron impurity to volatilize. The oxide is thereafter converted to the metal having a boron impurity as low as 0.5 ppm. The initial uranium may be obtained for example by the electrolysis of potassium uranous fluoride which may be prepared by a photochemical reduction, preferably using sunlight of a solution containing a uranium salt such as the nitrate, potassium fluoride, hydrofluoric acid and a reducing agent such as formic acid or sucrose. Such potassium uranous fluoride precipitate is removed, washed, dried and introduced into a bath of fused sodium and calcium chlorides in a graphite crucible with a molybdenum cathode. On electrolysis at a temperature of about 900 DEG C. boron contaminated uranium metal collects on the cathode which is removed, crushed and ground and thereafter burnt to form an oxide of uranium. The oxide is then heated to a temperature of about 1200 DEG C. whereby the boron is volatilized and the thus purified uranium oxide may be converted to the nitrate and uranium metal again produced electrolytically as before.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US786883XA | 1944-07-07 | 1944-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB786883A true GB786883A (en) | 1957-11-27 |
Family
ID=22145621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15795/45A Expired GB786883A (en) | 1944-07-07 | 1945-06-20 | Method of purifying uranium |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB786883A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6751663B1 (en) * | 1999-03-25 | 2004-06-15 | Nortel Networks Limited | System wide flow aggregation process for aggregating network activity records |
-
1945
- 1945-06-20 GB GB15795/45A patent/GB786883A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6751663B1 (en) * | 1999-03-25 | 2004-06-15 | Nortel Networks Limited | System wide flow aggregation process for aggregating network activity records |
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