WO2002042505A8 - Procede de transformation du concentre de loparite - Google Patents
Procede de transformation du concentre de lopariteInfo
- Publication number
- WO2002042505A8 WO2002042505A8 PCT/RU2000/000472 RU0000472W WO0242505A8 WO 2002042505 A8 WO2002042505 A8 WO 2002042505A8 RU 0000472 W RU0000472 W RU 0000472W WO 0242505 A8 WO0242505 A8 WO 0242505A8
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- concentrate
- processing
- loparite
- nitric acid
- breaking down
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/065—Nitric acids or salts thereof
-
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/24—Obtaining niobium or tantalum
-
- 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
- C22B59/00—Obtaining rare earth metals
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
L'invention concerne la transformation hydrométallurgique de concentrés de minerais et notamment la transformation du concentré de loparite. Le procédé consiste à broyer le concentré jusqu'à une granularité d'au moins 0,075 mm, attaquer le concentré avec de l'acide nitrique sous pression atmosphérique et à une température supérieure à 100 °C pour obtenir un gâteau hydraté de métaux réfractaires et une solution de nitrates d'éléments de terres rares, filtrer le gâteau hydraté et effectuer la transformation ultérieure des produits ainsi obtenus. La nouveauté du procédé consiste en ce que l'attaque se fait avec une concentration initiale de l'acide nitrique dans la pulpe entre 350 et 500 g / l, à une température entre 105 et 110 °C, en présence d'additifs catalytiques en composés fluorés qui représentent de 1,0 à 7,5 % de la masse du concentré en termes d'ions fluorure. En tant que composés fluorés on peut utiliser HF, NH4F, NH4HF2, NaF, CaF2 ou leurs mélanges.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2000128900/02A RU2168556C1 (ru) | 2000-11-21 | 2000-11-21 | Способ переработки лопаритового концентрата |
| RU2000128900 | 2000-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2002042505A1 WO2002042505A1 (fr) | 2002-05-30 |
| WO2002042505A8 true WO2002042505A8 (fr) | 2002-07-04 |
Family
ID=20242297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2000/000472 WO2002042505A1 (fr) | 2000-11-21 | 2000-11-22 | Procede de transformation du concentre de loparite |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2168556C1 (fr) |
| WO (1) | WO2002042505A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2506333C1 (ru) * | 2012-11-22 | 2014-02-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Способ вскрытия лопаритовых концентратов |
| RU2525951C1 (ru) * | 2013-08-28 | 2014-08-20 | Федеральное государственное бюджетное учреждение науки Институт металлургии и материаловедения им. А.А. Байкова Российской академии наук (ИМЕТ РАН) | Способ переработки лопаритового концентрата |
| AR095821A1 (es) * | 2014-04-09 | 2015-11-11 | Consejo Nac De Investig Científicas Y Técnicas (Conicet) | Procedimiento de obtención de compuestos de litio |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU50965A1 (ru) * | 1936-06-07 | 1936-11-30 | К.К. Белоглазов | Способ переработки лопаритовых руд или концентратов |
| US5384105A (en) * | 1992-05-29 | 1995-01-24 | Eco Tek, Inc. | Metal and fluorine values recovery from mineral ore treatment |
-
2000
- 2000-11-21 RU RU2000128900/02A patent/RU2168556C1/ru not_active IP Right Cessation
- 2000-11-22 WO PCT/RU2000/000472 patent/WO2002042505A1/fr active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002042505A1 (fr) | 2002-05-30 |
| RU2168556C1 (ru) | 2001-06-10 |
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| 122 | Ep: pct application non-entry in european phase |