UST970007I4 - Uranium recovery from wet-process phosphoric acid - Google Patents
Uranium recovery from wet-process phosphoric acid Download PDFInfo
- Publication number
- UST970007I4 UST970007I4 US05/781,216 US78121677A UST970007I4 US T970007 I4 UST970007 I4 US T970007I4 US 78121677 A US78121677 A US 78121677A US T970007 I4 UST970007 I4 US T970007I4
- Authority
- US
- United States
- Prior art keywords
- acid
- phosphoric acid
- uranium
- methanol
- miscible solvent
- 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.)
- Pending
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 12
- 229910052770 Uranium Inorganic materials 0.000 title abstract 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 5
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 4
- 238000011084 recovery Methods 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 12
- 235000011007 phosphoric acid Nutrition 0.000 abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract 2
- 239000011574 phosphorus Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910001463 metal phosphate Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Images
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
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
- C22B60/026—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries liquid-liquid extraction with or without dissolution in organic solvents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
a method of recovering uranium from wet-process phosphoric acid wherein the acid is treated with a mixture of an ammonium salt or ammonia, a metallic reducing agent such as iron, aluminum or zinc, and then a miscible solvent such as methanol. The precipitated solids, which are separated from the purified phosphoric acid, consist of a mixture of metal phosphates and uranium. This solid is dissolved in acid and the uranium recovered from the solution by liquid-liquid solvent extraction. The miscible solvent and some water are distilled away from the purified phosphoric acid. The distillate is rectified, the water discarded, and the miscible solvent recovered for recycle.
When the miscible solvent is methanol, the optimum ranges of ammonia and methanol are 0.05 to 0.20 gram atom nitrogen per gram atom phosphorus and 1.93 to 3.15 pounds methanol per pound of orthophosphoric acid. The amount of reducing agent added should be sufficient to reduce all uraniun to U(IV). Under these conditions, >99 percent of the uranium is precipitated from the wet-process acid. About 90 percent of the phosphorus in the acid is recovered as purified phosphoric acid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/781,216 UST970007I4 (en) | 1977-03-25 | 1977-03-25 | Uranium recovery from wet-process phosphoric acid |
| US05/827,517 US4180545A (en) | 1977-03-25 | 1977-08-25 | Uranium recovery from wet-process phosphoric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/781,216 UST970007I4 (en) | 1977-03-25 | 1977-03-25 | Uranium recovery from wet-process phosphoric acid |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/827,517 Continuation US4180545A (en) | 1977-03-25 | 1977-08-25 | Uranium recovery from wet-process phosphoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST970007I4 true UST970007I4 (en) | 1978-05-02 |
Family
ID=25122049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/781,216 Pending UST970007I4 (en) | 1977-03-25 | 1977-03-25 | Uranium recovery from wet-process phosphoric acid |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST970007I4 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0015589A1 (en) * | 1979-01-25 | 1980-09-17 | Stamicarbon B.V. | Process for recovering a uranium-containing concentrate and purified phosphoric acid from wet-process phosphoric acid, and products thus obtained |
| EP0023057A1 (en) * | 1979-07-24 | 1981-01-28 | Stamicarbon B.V. | Process for preparing phosphates and a uranium-containing concentrate from wet-process phosphoric acid, as well as phosphates and uranium-containing concentrate obtained with application of this process |
| EP0031793A2 (en) * | 1979-12-03 | 1981-07-08 | Schweizerische Aluminium AG | Process for producing phosphoric acid during which uranium in a recoverable state is obtained |
| US4301122A (en) | 1978-10-19 | 1981-11-17 | Mobil Oil Corporation | Recovery of uranium from phosphate ores |
| US4311676A (en) | 1978-09-08 | 1982-01-19 | Minemet Recherche | Process for the recovery of uranium contained in phosphated compounds |
| US4399110A (en) | 1980-06-11 | 1983-08-16 | Chemische Werke Huls Aktiengesellschaft | Process for reducing the radioactivity of calcium sulfate prepared from phosphate rock |
| US5188736A (en) * | 1991-08-27 | 1993-02-23 | Institute Of Nuclear Energy Research | Process for the separation and recovery of extractant from spent solvent |
| US8354567B2 (en) | 2008-01-30 | 2013-01-15 | David Donald Leavitt | Destruction of mixed radioactive waste by catalyzed chemical oxidation |
-
1977
- 1977-03-25 US US05/781,216 patent/UST970007I4/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4311676A (en) | 1978-09-08 | 1982-01-19 | Minemet Recherche | Process for the recovery of uranium contained in phosphated compounds |
| US4301122A (en) | 1978-10-19 | 1981-11-17 | Mobil Oil Corporation | Recovery of uranium from phosphate ores |
| EP0015589A1 (en) * | 1979-01-25 | 1980-09-17 | Stamicarbon B.V. | Process for recovering a uranium-containing concentrate and purified phosphoric acid from wet-process phosphoric acid, and products thus obtained |
| US4514365A (en) | 1979-01-25 | 1985-04-30 | Stamicarbon B.V. | Process for recovering a uranium-containing concentrate and purified phosphoric acid from a wet process phosphoric acid containing uranium |
| EP0023057A1 (en) * | 1979-07-24 | 1981-01-28 | Stamicarbon B.V. | Process for preparing phosphates and a uranium-containing concentrate from wet-process phosphoric acid, as well as phosphates and uranium-containing concentrate obtained with application of this process |
| JPS5626707A (en) * | 1979-07-24 | 1981-03-14 | Stamicarbon | Method of manufacturing phsphate and uraniummcontaining condensate from wet process phosphoric acid and phosphate and uraniumm containing condensate obtained thereby |
| EP0031793A2 (en) * | 1979-12-03 | 1981-07-08 | Schweizerische Aluminium AG | Process for producing phosphoric acid during which uranium in a recoverable state is obtained |
| EP0031793A3 (en) * | 1979-12-03 | 1981-07-22 | Schweizerische Aluminium Ag | Process for producing phosphoric acid during which uranium in a recoverable state is obtained |
| US4399110A (en) | 1980-06-11 | 1983-08-16 | Chemische Werke Huls Aktiengesellschaft | Process for reducing the radioactivity of calcium sulfate prepared from phosphate rock |
| US5188736A (en) * | 1991-08-27 | 1993-02-23 | Institute Of Nuclear Energy Research | Process for the separation and recovery of extractant from spent solvent |
| US8354567B2 (en) | 2008-01-30 | 2013-01-15 | David Donald Leavitt | Destruction of mixed radioactive waste by catalyzed chemical oxidation |
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