GB1313845A - Reduction of oxides of refractory metals - Google Patents

Reduction of oxides of refractory metals

Info

Publication number
GB1313845A
GB1313845A GB2086569A GB1313845DA GB1313845A GB 1313845 A GB1313845 A GB 1313845A GB 2086569 A GB2086569 A GB 2086569A GB 1313845D A GB1313845D A GB 1313845DA GB 1313845 A GB1313845 A GB 1313845A
Authority
GB
United Kingdom
Prior art keywords
reduction
oxide
kiln
tungsten
monoxide
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
Application number
GB2086569A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of GB1313845A publication Critical patent/GB1313845A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • 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
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Catalysts (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1313845 Reduction of molybdenum or tungsten oxide UNITED KINGDOM ATOMIC ENERGY AUTHORITY 14 April 1970 [23 April 1969] 20865/69 Heading C1A [Also in Divisions C7 and F4] Tungsten or molybdenum oxide is reduced by contacting a bed of the hot oxide with a current of CO and recirculating to the bed the mixed monoxide and dioxide off-gases over a reducing agent for reducing carbon dioxide to monoxide. The product of the reduction may be the metal or its carbide depending on the temperature and CO 2 concentration in the reaction. Tungsten carbide is specified as being obtained by reduction of the oxide at 850‹ C. and a CO 2 core below 20% v/v. At higher concentrations the metal is produced. Apparatus claimed for carrying out the process of the invention comprises a kiln 1 heated by external heating means 3 and a means 4 together with connecting pipes for passing off gases from the kiln 1 through a vessel 5 for containing the reducing agent and back to the kiln 1.
GB2086569A 1969-04-23 1969-04-23 Reduction of oxides of refractory metals Expired GB1313845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2086569 1969-04-23

Publications (1)

Publication Number Publication Date
GB1313845A true GB1313845A (en) 1973-04-18

Family

ID=10153040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2086569A Expired GB1313845A (en) 1969-04-23 1969-04-23 Reduction of oxides of refractory metals

Country Status (10)

Country Link
JP (1) JPS5023000B1 (en)
AT (1) AT311688B (en)
BE (1) BE749231A (en)
DE (2) DE7014849U (en)
ES (1) ES378967A1 (en)
FR (1) FR2046380A5 (en)
GB (1) GB1313845A (en)
LU (1) LU60799A1 (en)
NL (1) NL7005945A (en)
SE (1) SE365779B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203421A (en) * 1987-04-10 1988-10-19 Nat Res Dev Making carbides of high-melting metals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001269A1 (en) * 1989-07-20 1991-02-07 Institut Strukturnoi Makrokinetiki Akademii Nauk Sssr Method for obtaining molybdenum carbide
CN108907218B (en) * 2018-07-26 2021-11-19 江西理工大学 CO-CO2Method for preparing superfine tungsten powder by reducing tungsten oxide in mixed atmosphere

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203421A (en) * 1987-04-10 1988-10-19 Nat Res Dev Making carbides of high-melting metals

Also Published As

Publication number Publication date
LU60799A1 (en) 1970-11-17
DE2019399B2 (en) 1976-11-18
DE2019399A1 (en) 1970-11-12
BE749231A (en) 1970-10-20
FR2046380A5 (en) 1971-03-05
SE365779B (en) 1974-04-01
NL7005945A (en) 1970-10-27
ES378967A1 (en) 1973-01-16
AT311688B (en) 1973-11-26
DE7014849U (en) 1971-11-18
JPS5023000B1 (en) 1975-08-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee