GB1329580A - Tungsten carbide - Google Patents
Tungsten carbideInfo
- Publication number
- GB1329580A GB1329580A GB6114370A GB1329580DA GB1329580A GB 1329580 A GB1329580 A GB 1329580A GB 6114370 A GB6114370 A GB 6114370A GB 1329580D A GB1329580D A GB 1329580DA GB 1329580 A GB1329580 A GB 1329580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- product
- tungsten
- heating
- carbide
- tungsten carbide
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/949—Tungsten or molybdenum carbides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
1329580 Tungsten carbide WICKMAN WIMET Ltd 7 Feb 1972 [23 Dec 1970] 61143/70 Heading C1A The proportion of tungsten carbide in a product, which include tungsten carbide and an impurity in the form of a double carbide of tungsten and iron, is increased by heating the product with free carbon which may already be present in the product, in a non-oxidizing atmosphere at a temperature above 1350‹ C. to cause the free carbon to react with the double carbide. The impure product, which is preferably pulverized before the heating, is obtained from a tungsten ore, by electrolysis or direct reduction with carbon. Silica and lime based impurities may be removed by leaching with HCl. The heating may be carried out in H 2 and the product leached with HCl to remove iron or under reduced pressure such that iron is removed by vaporization.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6114370 | 1970-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1329580A true GB1329580A (en) | 1973-09-12 |
Family
ID=10486659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6114370A Expired GB1329580A (en) | 1970-12-23 | 1970-12-23 | Tungsten carbide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1329580A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863472A (en) * | 2010-06-25 | 2010-10-20 | 深圳市格林美高新技术股份有限公司 | Method for recovering tungsten carbide from discarded hard alloy |
| CN108314049A (en) * | 2017-01-16 | 2018-07-24 | 自贡市华刚硬质合金新材料有限公司 | Alloy vacuum powder production technology |
-
1970
- 1970-12-23 GB GB6114370A patent/GB1329580A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863472A (en) * | 2010-06-25 | 2010-10-20 | 深圳市格林美高新技术股份有限公司 | Method for recovering tungsten carbide from discarded hard alloy |
| CN101863472B (en) * | 2010-06-25 | 2012-03-28 | 深圳市格林美高新技术股份有限公司 | Method for recovering tungsten carbide from discarded hard alloy |
| CN108314049A (en) * | 2017-01-16 | 2018-07-24 | 自贡市华刚硬质合金新材料有限公司 | Alloy vacuum powder production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |