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
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 |
DE3208879A1 (en) * | 1982-03-11 | 1983-09-22 | Toho Aen K.K. | Method of producing finely powdered metal |
JPS58171502A (en) * | 1982-04-02 | 1983-10-08 | Toyota Motor Corp | Pulverized composite powder of ceramic and metal |
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 | Process and apparatus for producing fine powder |
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 |
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 |
WO1999042237A1 (en) * | 1998-02-20 | 1999-08-26 | Toho Titanium Co., Ltd. | Process for the production of powdered nickel |
WO2005035807A1 (en) * | 2003-09-19 | 2005-04-21 | Sri International | Methods and apparatuses for producing metallic compositions via reduction of 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 FR FR7018168A patent/FR2048525A5/fr not_active Expired
- 1970-05-19 NL NL7007230A patent/NL7007230A/xx unknown
- 1970-05-19 CS CS3455A patent/CS150507B2/cs unknown
- 1970-05-19 JP JP45042340A patent/JPS5031554B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3671220A (en) | 1972-06-20 |
DE2023958A1 (en) | 1970-11-26 |
JPS5031554B1 (en) | 1975-10-13 |
FR2048525A5 (en) | 1971-03-19 |
BE750580A (en) | 1970-11-03 |
NL7007230A (en) | 1970-11-23 |
DE2023958B2 (en) | 1973-01-11 |
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 |