ZA723570B - Recovery of refractory metal values - Google Patents
Recovery of refractory metal valuesInfo
- Publication number
- ZA723570B ZA723570B ZA723570A ZA723570A ZA723570B ZA 723570 B ZA723570 B ZA 723570B ZA 723570 A ZA723570 A ZA 723570A ZA 723570 A ZA723570 A ZA 723570A ZA 723570 B ZA723570 B ZA 723570B
- Authority
- ZA
- South Africa
- Prior art keywords
- recovery
- refractory metal
- metal values
- values
- refractory
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- 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
- C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
- C22B3/14—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
-
- 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
-
- 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)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15468671A | 1971-06-18 | 1971-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA723570B true ZA723570B (en) | 1973-03-28 |
Family
ID=22552329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA723570A ZA723570B (en) | 1971-06-18 | 1972-05-24 | Recovery of refractory metal values |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3758665A (de) |
| AT (1) | AT319618B (de) |
| BE (1) | BE784905A (de) |
| CA (1) | CA962455A (de) |
| DE (1) | DE2229256C3 (de) |
| FI (1) | FI55356C (de) |
| FR (1) | FR2142035B1 (de) |
| GB (1) | GB1359245A (de) |
| IT (1) | IT958238B (de) |
| LU (1) | LU65533A1 (de) |
| NL (1) | NL7208218A (de) |
| NO (1) | NO131942C (de) |
| SE (1) | SE379208B (de) |
| ZA (1) | ZA723570B (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7507119A (nl) * | 1975-06-16 | 1976-12-20 | Stamicarbon | Werkwijze voor de bereiding van een hydroxylamine- zout. |
| US4197117A (en) * | 1978-11-20 | 1980-04-08 | Kennecott Copper Corporation | Recovery of copper by ferrous ion precipitation |
| US4668124A (en) * | 1985-04-22 | 1987-05-26 | Engelhard Corporation | Disposal of material containing vanadium as landfill |
| US5518131A (en) * | 1994-07-07 | 1996-05-21 | International Business Machines Corporation | Etching molydbenum with ferric sulfate and ferric ammonium sulfate |
-
1971
- 1971-06-18 US US3758665D patent/US3758665A/en not_active Expired - Lifetime
-
1972
- 1972-05-23 GB GB2431872A patent/GB1359245A/en not_active Expired
- 1972-05-24 ZA ZA723570A patent/ZA723570B/xx unknown
- 1972-06-07 IT IT5073172A patent/IT958238B/it active
- 1972-06-07 FI FI161172A patent/FI55356C/fi active
- 1972-06-07 CA CA144,120A patent/CA962455A/en not_active Expired
- 1972-06-12 DE DE2229256A patent/DE2229256C3/de not_active Expired
- 1972-06-15 SE SE787272A patent/SE379208B/xx unknown
- 1972-06-15 NL NL7208218A patent/NL7208218A/xx not_active Application Discontinuation
- 1972-06-15 BE BE784905A patent/BE784905A/xx unknown
- 1972-06-16 FR FR7221854A patent/FR2142035B1/fr not_active Expired
- 1972-06-16 NO NO216772A patent/NO131942C/no unknown
- 1972-06-16 LU LU65533D patent/LU65533A1/xx unknown
- 1972-06-16 AT AT521672A patent/AT319618B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU4276472A (en) | 1973-08-02 |
| FR2142035B1 (de) | 1977-12-23 |
| US3758665A (en) | 1973-09-11 |
| GB1359245A (en) | 1974-07-10 |
| IT958238B (it) | 1973-10-20 |
| DE2229256C3 (de) | 1974-05-30 |
| CA962455A (en) | 1975-02-11 |
| NO131942C (de) | 1975-08-27 |
| AT319618B (de) | 1974-12-27 |
| BE784905A (fr) | 1972-12-15 |
| FI55356B (fi) | 1979-03-30 |
| FI55356C (fi) | 1979-07-10 |
| LU65533A1 (de) | 1973-01-22 |
| DE2229256B2 (de) | 1973-10-31 |
| NO131942B (de) | 1975-05-20 |
| NL7208218A (de) | 1972-12-20 |
| DE2229256A1 (de) | 1973-01-25 |
| FR2142035A1 (de) | 1973-01-26 |
| SE379208B (de) | 1975-09-29 |
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