ES471423A1 - Procedimiento de extraccion de uranio a partir de acido fos-forico de via humeda. - Google Patents
Procedimiento de extraccion de uranio a partir de acido fos-forico de via humeda.Info
- Publication number
- ES471423A1 ES471423A1 ES471423A ES471423A ES471423A1 ES 471423 A1 ES471423 A1 ES 471423A1 ES 471423 A ES471423 A ES 471423A ES 471423 A ES471423 A ES 471423A ES 471423 A1 ES471423 A1 ES 471423A1
- Authority
- ES
- Spain
- Prior art keywords
- uranium
- solvent
- ammonium
- acid
- stage
- 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
- C22B60/0217—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
Procedimiento de extracción de uranio a partir de ácido fosfórico de vía húmeda, según el cual se trata el ácido previamente oxidado con un disolvente orgánico constituido por una mezcla de ácido dialquilo fosfórico, en particular, el ácido di(2-etilhexil) fosfórico y de óxido de traialquifosfina en particular el óxido de tri-n-octilfosfina, en solución en un disolvente inerte no reactivo a fin de obtener ácido fosfórico desuraniado y un extracto orgánico constituido por el disolvente que contiene la mayor parte del uranio, después se separa el uranio del extracto en forma de uranilo tricarbonato de amonio por reacción con el amoníaco y el carbonato de amonio, y se vuelve a tratar el extracto desuraniado en la etapa de extracción caracterizado por el hecho de que se trata el extracto en un aparato de reextracción que incluye al menos 2 etapas, preferentemente 3 etapas, se introduce el extracto que hay que tratar al principio de la primera etapa, se introduce al final de la primera etapa a contra-corriente, amoníaco en forma de gas o en solución acuosa, controlando el pH de la primera etapa a fin de mantenerlo en un valor de 8,0 a 8,5, se inyecta al final de la primera etapa una solución acuosa de carbonato de amonio en cantidad que represente del 50 al 80% de la cantidad estequiométrica necesaria para neutralizar el ácido dialquilfosfórico contenido en el disolvente y transformar el uranio en uranilo tricarbonato de amonio y se regenera el disolvente amoniado obtenido después de reextracción por tratamiento con ácido antes de devolver a tratar en la etapa de extracción.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7720552A FR2396803A1 (fr) | 1977-07-05 | 1977-07-05 | Procede d'extraction d'uranium a partir d'acide phosphorique de voie humide |
Publications (1)
Publication Number | Publication Date |
---|---|
ES471423A1 true ES471423A1 (es) | 1979-05-16 |
Family
ID=9192964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES471423A Expired ES471423A1 (es) | 1977-07-05 | 1978-07-04 | Procedimiento de extraccion de uranio a partir de acido fos-forico de via humeda. |
Country Status (16)
Country | Link |
---|---|
US (1) | US4238457A (es) |
JP (1) | JPS5930649B2 (es) |
AU (1) | AU517756B2 (es) |
BR (1) | BR7804296A (es) |
CA (1) | CA1106616A (es) |
DE (1) | DE2829306C2 (es) |
ES (1) | ES471423A1 (es) |
FR (1) | FR2396803A1 (es) |
GB (1) | GB2014120B (es) |
JO (1) | JO1084B1 (es) |
NL (1) | NL175323C (es) |
PL (1) | PL111715B1 (es) |
SU (1) | SU858572A3 (es) |
TR (1) | TR20717A (es) |
YU (1) | YU42928B (es) |
ZA (1) | ZA783145B (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2459205A2 (fr) * | 1979-06-15 | 1981-01-09 | Commissariat Energie Atomique | Procede de recuperation de l'uranium present dans une solution d'acide phosphorique |
US4374806A (en) * | 1980-06-17 | 1983-02-22 | Wyoming Mineral Corporation | Raffinate wash of second cycle solvent in the recovery of uranium from phosphate rock |
US4544530A (en) * | 1980-10-10 | 1985-10-01 | Institute Of Nuclear Energy Research | Separation process for the recovery of uranium from wet-process phosphoric acid |
US4652432A (en) * | 1981-02-26 | 1987-03-24 | Prodeco, Inc. | Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
US4652431A (en) * | 1981-02-26 | 1987-03-24 | Prodeco, Inc. | Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
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 |
US5419880A (en) * | 1993-10-08 | 1995-05-30 | Falconbridge, Ltd. | Controlled acid-strong acid strip process |
FR2990206B1 (fr) | 2012-05-07 | 2014-06-06 | Commissariat Energie Atomique | Nouveaux composes bifonctionnels utiles comme ligands de l'uranium(vi), leurs procedes de synthese et leurs utilisations |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859094A (en) * | 1957-02-07 | 1958-11-04 | John M Schmitt | Uranium extraction process using synergistic reagents |
US3711591A (en) * | 1970-07-08 | 1973-01-16 | Atomic Energy Commission | Reductive stripping process for the recovery of uranium from wet-process phosphoric acid |
-
1977
- 1977-07-05 FR FR7720552A patent/FR2396803A1/fr active Granted
-
1978
- 1978-06-01 ZA ZA00783145A patent/ZA783145B/xx unknown
- 1978-06-05 CA CA304,815A patent/CA1106616A/en not_active Expired
- 1978-06-15 NL NL7806490A patent/NL175323C/xx not_active IP Right Cessation
- 1978-06-27 TR TR2071778A patent/TR20717A/xx unknown
- 1978-06-28 AU AU37551/78A patent/AU517756B2/en not_active Expired
- 1978-06-30 YU YU156278A patent/YU42928B/xx unknown
- 1978-07-04 JP JP53081398A patent/JPS5930649B2/ja not_active Expired
- 1978-07-04 ES ES471423A patent/ES471423A1/es not_active Expired
- 1978-07-04 PL PL1978208156A patent/PL111715B1/pl unknown
- 1978-07-04 DE DE2829306A patent/DE2829306C2/de not_active Expired
- 1978-07-04 BR BR7804296A patent/BR7804296A/pt unknown
- 1978-07-04 JO JO19781084A patent/JO1084B1/en active
- 1978-07-05 GB GB7828865A patent/GB2014120B/en not_active Expired
- 1978-07-05 US US05/922,019 patent/US4238457A/en not_active Expired - Lifetime
- 1978-07-05 SU SU782632550A patent/SU858572A3/ru active
Also Published As
Publication number | Publication date |
---|---|
JPS5442322A (en) | 1979-04-04 |
JO1084B1 (en) | 1982-07-10 |
ZA783145B (en) | 1979-06-27 |
DE2829306C2 (de) | 1984-09-27 |
NL7806490A (nl) | 1979-01-09 |
AU3755178A (en) | 1980-01-03 |
GB2014120B (en) | 1982-03-10 |
NL175323C (nl) | 1984-10-16 |
YU42928B (en) | 1989-02-28 |
YU156278A (en) | 1982-08-31 |
JPS5930649B2 (ja) | 1984-07-28 |
NL175323B (nl) | 1984-05-16 |
BR7804296A (pt) | 1979-02-28 |
DE2829306A1 (de) | 1979-01-18 |
GB2014120A (en) | 1979-08-22 |
TR20717A (tr) | 1982-05-20 |
PL208156A1 (pl) | 1979-04-23 |
CA1106616A (en) | 1981-08-11 |
FR2396803A1 (fr) | 1979-02-02 |
US4238457A (en) | 1980-12-09 |
SU858572A3 (ru) | 1981-08-23 |
FR2396803B1 (es) | 1980-01-18 |
AU517756B2 (en) | 1981-08-27 |
PL111715B1 (en) | 1980-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19991102 |