IT1224723B - Procedimento per il recupero selettivo di uranio da acido fosforico ottenuto con procedimento ad umido, mediante ossidi fosfonici asimmetrici - Google Patents
Procedimento per il recupero selettivo di uranio da acido fosforico ottenuto con procedimento ad umido, mediante ossidi fosfonici asimmetriciInfo
- Publication number
- IT1224723B IT1224723B IT8848307A IT4830788A IT1224723B IT 1224723 B IT1224723 B IT 1224723B IT 8848307 A IT8848307 A IT 8848307A IT 4830788 A IT4830788 A IT 4830788A IT 1224723 B IT1224723 B IT 1224723B
- Authority
- IT
- Italy
- Prior art keywords
- asymmetric
- procedure
- phosphoric acid
- wet process
- acid obtained
- Prior art date
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
- C22B60/0217—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
Landscapes
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/090,178 US4778663A (en) | 1987-08-27 | 1987-08-27 | Uranium recovery from wet process phosphoric acid unsymmetrical phosphine oxides |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8848307A0 IT8848307A0 (it) | 1988-08-26 |
IT1224723B true IT1224723B (it) | 1990-10-18 |
Family
ID=22221653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8848307A IT1224723B (it) | 1987-08-27 | 1988-08-26 | Procedimento per il recupero selettivo di uranio da acido fosforico ottenuto con procedimento ad umido, mediante ossidi fosfonici asimmetrici |
Country Status (5)
Country | Link |
---|---|
US (1) | US4778663A (it) |
BE (1) | BE1001758A3 (it) |
BR (1) | BR8804340A (it) |
IT (1) | IT1224723B (it) |
MA (1) | MA21359A1 (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5437848A (en) * | 1992-07-10 | 1995-08-01 | Cabot Corporation | Recovery of metal values from process residues |
CA2077601A1 (en) * | 1992-09-04 | 1994-03-05 | William Andrew Rickelton | Recovery of indium by solvent extraction using trialkyl-phosphine oxides |
US7282187B1 (en) | 1996-03-26 | 2007-10-16 | Caboi Corporation | Recovery of metal values |
US6843970B1 (en) | 1996-03-26 | 2005-01-18 | Cabot Corporation | Process for recovering metal values by dissolving them in a sulfuric acid solution containing a carbon source and a reducing agent |
CN1097094C (zh) * | 1996-03-26 | 2002-12-25 | 卡伯特公司 | 从含不溶氟化物的Ta-Nb金属矿中增溶金属成分的方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US31686A (en) * | 1861-03-12 | Improvement in reaping and mowing machines | ||
US2859094A (en) * | 1957-02-07 | 1958-11-04 | John M Schmitt | Uranium extraction process using synergistic reagents |
US3737513A (en) * | 1970-07-02 | 1973-06-05 | Freeport Minerals Co | Recovery of uranium from an organic extractant by back extraction with h3po4 or hf |
USRE31686E (en) | 1970-07-08 | 1984-09-25 | The United States Of America As Represented By The United States Department Of Energy | Reductive stripping process for the recovery of uranium from wet-process phosphoric acid |
US3711591A (en) * | 1970-07-08 | 1973-01-16 | Atomic Energy Commission | Reductive stripping process for the recovery of uranium from wet-process phosphoric acid |
US3836476A (en) * | 1971-10-04 | 1974-09-17 | Kerr Mc Gee Chem Corp | Simultaneous recovery of vanadium and uranium from oxidized wet process acid |
US4212849A (en) * | 1978-01-13 | 1980-07-15 | Kerr-Mcgee Corporation | Simultaneous extraction and recovery of uranium and vanadium from wet process acids |
CA1139956A (en) * | 1978-10-10 | 1983-01-25 | Mark A. Rose | Process for extracting uranium from crude phosphoric acids |
IL58726A (en) * | 1978-11-28 | 1982-12-31 | Commissariat Energie Atomique | Recovery of uranium from phosphoric acid solutions |
LU84333A1 (fr) * | 1982-08-13 | 1984-03-23 | Prayon Rupel Soc Chimique | Procede et installation pour re-extraire,en plusieurs etages successifs,de l'uranium d'un extractant |
FR2539549B1 (fr) * | 1983-01-17 | 1988-10-14 | Rhone Poulenc Chim Base | Procede de recuperation globale de l'uranium, de l'yttrium, du thorium et des terres rares contenus dans une phase organique |
-
1987
- 1987-08-27 US US07/090,178 patent/US4778663A/en not_active Expired - Lifetime
-
1988
- 1988-08-23 MA MA21602A patent/MA21359A1/fr unknown
- 1988-08-25 BR BR8804340A patent/BR8804340A/pt not_active IP Right Cessation
- 1988-08-26 BE BE8800972A patent/BE1001758A3/fr not_active IP Right Cessation
- 1988-08-26 IT IT8848307A patent/IT1224723B/it active
Also Published As
Publication number | Publication date |
---|---|
US4778663A (en) | 1988-10-18 |
MA21359A1 (fr) | 1989-04-01 |
BR8804340A (pt) | 1989-03-21 |
IT8848307A0 (it) | 1988-08-26 |
BE1001758A3 (fr) | 1990-02-27 |
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