GB617896A - Improved process of recovering tungsten from tungsten carbide - Google Patents
Improved process of recovering tungsten from tungsten carbideInfo
- Publication number
- GB617896A GB617896A GB465246A GB465246A GB617896A GB 617896 A GB617896 A GB 617896A GB 465246 A GB465246 A GB 465246A GB 465246 A GB465246 A GB 465246A GB 617896 A GB617896 A GB 617896A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten
- oxygen
- tungsten carbide
- improved process
- recovering
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/36—Obtaining tungsten
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Tungsten carbide is treated at 450 DEG -1200 DEG C. with a gas containing both oxygen and a halogen and the resulting tungsten-containing vapours, which comprise a mixture of oxyhalides, halides, and oxides, are condensed. The condensate may be converted into sodium tungstate or tungsten acid by treatment with caustic soda or nitric acid respectively. The gaseous reagent should contain 1 mol. of oxygen to 2 mols. of tungsten carbide; both the oxygen and the halogen may be either free or in combination, e.g. as nitrogen peroxide, chlorine peroxide, &c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB465246A GB617896A (en) | 1946-02-14 | 1946-02-14 | Improved process of recovering tungsten from tungsten carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB465246A GB617896A (en) | 1946-02-14 | 1946-02-14 | Improved process of recovering tungsten from tungsten carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB617896A true GB617896A (en) | 1949-02-14 |
Family
ID=9781242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB465246A Expired GB617896A (en) | 1946-02-14 | 1946-02-14 | Improved process of recovering tungsten from tungsten carbide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB617896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3254945A (en) * | 1962-07-10 | 1966-06-07 | Maurice G Mcgrath | Process for producing a novel form of tungstic oxide |
-
1946
- 1946-02-14 GB GB465246A patent/GB617896A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3254945A (en) * | 1962-07-10 | 1966-06-07 | Maurice G Mcgrath | Process for producing a novel form of tungstic oxide |
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