GB951416A - Preparation of metal carbides - Google Patents

Preparation of metal carbides

Info

Publication number
GB951416A
GB951416A GB14526/61A GB1452661A GB951416A GB 951416 A GB951416 A GB 951416A GB 14526/61 A GB14526/61 A GB 14526/61A GB 1452661 A GB1452661 A GB 1452661A GB 951416 A GB951416 A GB 951416A
Authority
GB
United Kingdom
Prior art keywords
metal
carbon
carbides
water
menstruum
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
GB14526/61A
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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
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 Mine Safety Appliances Co filed Critical Mine Safety Appliances Co
Publication of GB951416A publication Critical patent/GB951416A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/90Carbides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/50Solid solutions
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/61Micrometer sized, i.e. from 1-100 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/80Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases

Abstract

A process for the preparation of metal carbides or mixtures thereof comprises reacting under an atmosphere of inert gas or gaseous hydrocarbon or mixtures thereof and at a temperature of at least 1500 DEG F. at least one metal component selected from Groups IIIB, IVB and VB of the Periodic Table (as published by the Fischer Scientific Company) including the rare earth and the actinide elements 90 to 94, and alloys, halides, sulphides and oxides thereof, with a carbon source selected from carbon, hydrocarbons and alkaline earth metal carbides, by contacting said reactants in a molten menstruum comprising metallic sodium or potassium or a mixture thereof, and, when using said metal oxide, a reducing metal selected from calcium, magnesium, lithium, strontium and barium in at least the stoichiometric amount required to reduce the metal oxide, and separating the metal carbide from said molten metal menstruum. The separation may be achieved by distilling off the sodium or potassium, or by filtration or digestion of the same in methanol. A flux may be added to aid the solution of the reactants, e.g. NaCl, KCl, NaF or CaCl2, and may be formed in situ if a halide reactant is used. When a metallic reducing agent is present as described above this may also be formed in situ by adding an easily reducible compound of the metal, e.g. CaCl2. When the carbon source is carbon itself the presence of an alkaline earth metal, e.g. Ca or Mg, increases the solubility of the carbon and thus promotes the reaction. Impurities in the product such as NaCl or KCl may be removed by washing with water or, in the case of water-soluble product carbides, liquid ammonia, and carbide impurities may be removed by reaction with water followed by leaching the resulting oxide or hydroxide with dilute hydrochloric acid. The process is extensively exemplified using various carbon sources and metal sources.
GB14526/61A 1960-04-21 1961-04-21 Preparation of metal carbides Expired GB951416A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2360360A 1960-04-21 1960-04-21
US2360460A 1960-04-21 1960-04-21
US2360560A 1960-04-21 1960-04-21

Publications (1)

Publication Number Publication Date
GB951416A true GB951416A (en) 1964-03-04

Family

ID=27362124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14526/61A Expired GB951416A (en) 1960-04-21 1961-04-21 Preparation of metal carbides

Country Status (2)

Country Link
DE (1) DE1237990B (en)
GB (1) GB951416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472367A (en) * 1978-11-17 1984-09-18 Geruldine Gibson Method for the carbothermic reduction of metal oxides using solar energy
US4515763A (en) * 1981-07-15 1985-05-07 Board Of Trustees Of Leland Stanford Jr. Univeristy High specific surface area carbides and nitrides
US4851203A (en) * 1986-04-03 1989-07-25 Atochem Metal carbide and nitride powders

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062807A (en) * 1975-06-17 1977-12-13 Tokyo Shibaura Electric Co., Ltd. Nitrogen oxide reducing catalyst
US3953194A (en) * 1975-06-20 1976-04-27 Allegheny Ludlum Industries, Inc. Process for reclaiming cemented metal carbide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2124509A (en) * 1935-07-15 1938-07-19 Philip M Mckenna Carbides of tantalum and like metals and method of producing the same
US2515463A (en) * 1948-03-19 1950-07-18 Kennametal Inc Process for making titanium carbide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472367A (en) * 1978-11-17 1984-09-18 Geruldine Gibson Method for the carbothermic reduction of metal oxides using solar energy
US4515763A (en) * 1981-07-15 1985-05-07 Board Of Trustees Of Leland Stanford Jr. Univeristy High specific surface area carbides and nitrides
US4851203A (en) * 1986-04-03 1989-07-25 Atochem Metal carbide and nitride powders

Also Published As

Publication number Publication date
DE1237990B (en) 1967-04-06

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