GB785997A - Method for the recovery of uranium products from solutions containing hexavalent uranium - Google Patents
Method for the recovery of uranium products from solutions containing hexavalent uraniumInfo
- Publication number
- GB785997A GB785997A GB23845/55A GB2384555A GB785997A GB 785997 A GB785997 A GB 785997A GB 23845/55 A GB23845/55 A GB 23845/55A GB 2384555 A GB2384555 A GB 2384555A GB 785997 A GB785997 A GB 785997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- uranium
- solution
- nitrate
- amides
- solutions
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Ammonium diuranate is precipitated from solutions of hexavalent uranium by adding thereto one or more amides and causing the amides to hydrolyse therein so that the pH increases and the uranate is precipitated. Suitable amides are carbamide and acetamide and the hydrolysis is effected by heating, preferably to 90-115 DEG C. In order to separate the uranium from impurities such as cadmium, the rare earth metals, mercury, beryllium, iron, chromium, nickel, cobalt, zinc, lead, manganese, magnesium and calcium it is desirable that the final pH is within the range 4.5-7; this may be achieved by the addition of ammonium salts such as the nitrate or sulphate to the initial solution before the addition of the amide. According to examples: (1) solutions of uranyl chloride, sulphate and nitrate were separately treated with ammonium hydroxide to adjust the pH to 3 and carbamide added. The solution was heated to 100-103 DEG C. while stirring and the precipitation of the diuranate was complete within two hours. The sedimentation was quicker than that of a precipitate obtained by treating the uranium containing solutions with ammonium hydroxide. (2) A solution of uranyl nitrate was adjusted to a pH of 3 with ammonium hydroxide and acetamide added thereto after which the solution was heated to 100-103 DEG C. whilst stirring. The uranium commenced to precipitate within 30 minutes and the final pH was 4.6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE785997X | 1954-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB785997A true GB785997A (en) | 1957-11-06 |
Family
ID=20336815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23845/55A Expired GB785997A (en) | 1954-08-20 | 1955-08-18 | Method for the recovery of uranium products from solutions containing hexavalent uranium |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB785997A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372999A (en) * | 1964-03-20 | 1968-03-12 | Atomic Energy Authority Uk | Continuous precipitation process for recovering uranium and/or plutonium from solution |
-
1955
- 1955-08-18 GB GB23845/55A patent/GB785997A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372999A (en) * | 1964-03-20 | 1968-03-12 | Atomic Energy Authority Uk | Continuous precipitation process for recovering uranium and/or plutonium from solution |
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