JPS55144419A - Manufacture of phosphoric acid involving recovery of uranium - Google Patents
Manufacture of phosphoric acid involving recovery of uraniumInfo
- Publication number
- JPS55144419A JPS55144419A JP5367679A JP5367679A JPS55144419A JP S55144419 A JPS55144419 A JP S55144419A JP 5367679 A JP5367679 A JP 5367679A JP 5367679 A JP5367679 A JP 5367679A JP S55144419 A JPS55144419 A JP S55144419A
- Authority
- JP
- Japan
- Prior art keywords
- phosphoric acid
- decomposition
- gypsum
- acid
- sent
- 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.)
- Granted
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: To perform the solvent extraction of U effectively in the manufacturing process of crude phosphoric acid in which rock phosphate is decomposed by sulfuric acid and phosphoric acid by a means in which U is transferred to and dissolved in the portion where the concentration of phosphoric acid is low.
CONSTITUTION: The rock phosphate powder 1 is mixed with the acid 3 for decomposition in the premixer 2, and the partially slurried phosphoric acid-lime mixture is sent to the decomposition tank 4 to which is added sulfuric acid. After the decomposition, the slurry is cooled 6, and filtered by the filter 7 to obtain hemihydrate gypsum and also to recover the product phosphoric acid 8. On the other hand, the hemihydrate gypsum cake is washed with residual U-extraction solution from the pipe 13, and the filtrate 9 is sent to the decomposition process of rock phosphate. Then, the hemihydrate gypsum is converted into gypsum dihydrate by means of the filtrate 18 form the filter 10 for gypsum dihydrate and the sulfuric acid 12 in the hydration tank 11. The slurry 15 after the hydration is filtered by the filter 10 and then washed with the (warm) water 16 to obtain the product 17 of gypsum dihydrate. Then, a part 22 of the filtrat 21 is sent to the concentration regulation process of phosphoric acid for hydration and the rest 14 are used in washing the hemihydrate gypsum. However, prior to the washing, it is subjected to a U-extraction treatment in the extractor 19 to recover U from the line 20.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5367679A JPS55144419A (en) | 1979-05-01 | 1979-05-01 | Manufacture of phosphoric acid involving recovery of uranium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5367679A JPS55144419A (en) | 1979-05-01 | 1979-05-01 | Manufacture of phosphoric acid involving recovery of uranium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55144419A true JPS55144419A (en) | 1980-11-11 |
| JPS5754452B2 JPS5754452B2 (en) | 1982-11-18 |
Family
ID=12949418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5367679A Granted JPS55144419A (en) | 1979-05-01 | 1979-05-01 | Manufacture of phosphoric acid involving recovery of uranium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55144419A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431610A (en) * | 1981-02-23 | 1984-02-14 | Central Glass Company Limited | Method of recovering uranium from wet process phosphoric acid |
-
1979
- 1979-05-01 JP JP5367679A patent/JPS55144419A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4431610A (en) * | 1981-02-23 | 1984-02-14 | Central Glass Company Limited | Method of recovering uranium from wet process phosphoric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5754452B2 (en) | 1982-11-18 |
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