GB1284178A - Process and apparatus for production of tungsten and similar metals in powder form - Google Patents
Process and apparatus for production of tungsten and similar metals in powder formInfo
- Publication number
- GB1284178A GB1284178A GB23977/70A GB2397770A GB1284178A GB 1284178 A GB1284178 A GB 1284178A GB 23977/70 A GB23977/70 A GB 23977/70A GB 2397770 A GB2397770 A GB 2397770A GB 1284178 A GB1284178 A GB 1284178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- gases
- wcl
- reduction
- heating elements
- 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
- 239000000843 powder Substances 0.000 title abstract 3
- 229910052721 tungsten Inorganic materials 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title 1
- 239000002184 metal Substances 0.000 title 1
- 150000002739 metals Chemical class 0.000 title 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title 1
- 239000010937 tungsten Substances 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 5
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 150000004820 halides Chemical class 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000003870 refractory metal Substances 0.000 abstract 1
- 229910052702 rhenium Inorganic materials 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/28—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from gaseous metal compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1284178 Producing refractory metal or alloy powder by reduction REDERIAKTIEBOLAGET NORDSTJERNAN 18 May 1970 [19 May 1969 2 April 1970] 23977/70 Heading C7D Powdered W, Mo, Ta, Nb, Re, Cr or alloy thereof e.g. W-Re is produced by reduction of the gaseous halide e.g. WCl 6 with a reducing gas comprising mainly H 2 , the halide and reducing gases e.g. from supply pipes 4, 5 with or without other gases e.g. Cl 2 , HCl or N 2 from pipe 6 being mixed in at least one duct 3 and pre-heated to, e.g. 20-150‹ C. above the minimum reaction temperature (300-330‹C. for WCl 6 ) using heating elements 7, before entering the reaction chamber 1. The particle size of the powder formed is adjusted by controlling one or more of the ratio of the reactants in the gases, its velocity or temperature; and preferably also the temperature of the reaction chamber, e.g. in zones by groups of heating elements 2, the temperature increasing in the direction of gas flow. A vibrator 10 and heat exchanger 8 (for cooling) may be mounted adjacent the mixing duct 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE700369 | 1969-05-19 | ||
| SE04529/70A SE333815B (en) | 1970-04-02 | 1970-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1284178A true GB1284178A (en) | 1972-08-02 |
Family
ID=26654534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23977/70A Expired GB1284178A (en) | 1969-05-19 | 1970-05-18 | Process and apparatus for production of tungsten and similar metals in powder form |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3671220A (en) |
| JP (1) | JPS5031554B1 (en) |
| BE (1) | BE750580A (en) |
| CS (1) | CS150507B2 (en) |
| DE (1) | DE2023958B2 (en) |
| FR (1) | FR2048525A5 (en) |
| GB (1) | GB1284178A (en) |
| NL (1) | NL7007230A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE347765B (en) * | 1970-05-27 | 1972-08-14 | Nordstjernan Rederi Ab | |
| BE791550A (en) * | 1971-11-20 | 1973-03-16 | Max Planck Gesellschaft | METHOD AND DEVICE FOR TREATING A MATERIAL BY MEANS OF PLASMA FROM AN ELECTRIC ARC |
| US3773493A (en) * | 1971-12-22 | 1973-11-20 | Westinghouse Electric Corp | Method of producing doped tungsten powders by chemical deposition |
| JPS597765B2 (en) * | 1980-09-13 | 1984-02-21 | 昭宣 吉澤 | Manufacturing method of fine powder metal |
| FR2523009B1 (en) * | 1982-03-11 | 1987-01-02 | Toho Zinc Co Ltd | PROCESS FOR PRODUCING FINE POWDER METALS |
| JPS58171502A (en) * | 1982-04-02 | 1983-10-08 | Toyota Motor Corp | Method for manufacturing ceramic-metal composite fine powder |
| JPS59170211A (en) * | 1983-03-14 | 1984-09-26 | Toho Aen Kk | Production of ultrafine powder |
| JPS59206042A (en) * | 1983-05-07 | 1984-11-21 | Sumitomo Electric Ind Ltd | Fine powder manufacturing method and manufacturing equipment |
| DE4214719C2 (en) * | 1992-05-04 | 1995-02-02 | Starck H C Gmbh Co Kg | Process for the production of fine-particle metal and ceramic powders |
| DE4214720C2 (en) * | 1992-05-04 | 1994-10-13 | Starck H C Gmbh Co Kg | Device for the production of fine-particle metal and ceramic powder |
| KR100411575B1 (en) * | 1998-02-20 | 2003-12-31 | 도호 티타늄 가부시키가이샤 | Process for Production of Nickel Powder |
| ATE473305T1 (en) * | 2003-09-19 | 2010-07-15 | Stanford Res Inst Int | METHOD AND DEVICES FOR PRODUCING METALLIC COMPOSITIONS BY REDUCING METAL HALIDES |
| CN113020617A (en) * | 2021-02-26 | 2021-06-25 | 宁夏德运创润钛业有限公司 | Method for preparing ultrafine high-purity refractory metal powder |
-
1970
- 1970-05-11 US US35991A patent/US3671220A/en not_active Expired - Lifetime
- 1970-05-15 DE DE19702023958 patent/DE2023958B2/en active Pending
- 1970-05-18 GB GB23977/70A patent/GB1284178A/en not_active Expired
- 1970-05-19 BE BE750580D patent/BE750580A/en unknown
- 1970-05-19 JP JP45042340A patent/JPS5031554B1/ja active Pending
- 1970-05-19 NL NL7007230A patent/NL7007230A/xx unknown
- 1970-05-19 FR FR7018168A patent/FR2048525A5/fr not_active Expired
- 1970-05-19 CS CS3455A patent/CS150507B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2023958A1 (en) | 1970-11-26 |
| DE2023958B2 (en) | 1973-01-11 |
| NL7007230A (en) | 1970-11-23 |
| BE750580A (en) | 1970-11-03 |
| JPS5031554B1 (en) | 1975-10-13 |
| US3671220A (en) | 1972-06-20 |
| FR2048525A5 (en) | 1971-03-19 |
| CS150507B2 (en) | 1973-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |