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GB1488362A - Preparation of monotungsten carbide - Google Patents

Preparation of monotungsten carbide

Info

Publication number
GB1488362A
GB1488362A GB42479/74A GB4247974A GB1488362A GB 1488362 A GB1488362 A GB 1488362A GB 42479/74 A GB42479/74 A GB 42479/74A GB 4247974 A GB4247974 A GB 4247974A GB 1488362 A GB1488362 A GB 1488362A
Authority
GB
United Kingdom
Prior art keywords
carbide
tungsten
product
carbon
reaction zone
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
GB42479/74A
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Priority to GB42479/74A priority Critical patent/GB1488362A/en
Publication of GB1488362A publication Critical patent/GB1488362A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • 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
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • 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
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • 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)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

1488362 Tungsten carbide PPG INDUSTRIES Inc 1 Oct 1974 42479/74 Heading ClA Monotungsten carbide is prepared by vapor phase reaction of a tungsten compound volatile at reaction temperatures used with a vaporous source of carbon at from 1500‹ to 2500‹ C. in a reaction zone, the process comprising introducing into a reaction zone the volatile tungsten compound and the source of carbon in amounts sufficient to provide in the product at least one atom of carbon for each atom of tungsten introduced into the reaction zone and the temperature of 1500‹ to 2500‹ C. being attained by means of a plasma generator, withdrawing from the reaction zone solid tungsten carbide (as defined) product having ditungsten carbide as its principal component, and calcining the solid tungsten carbide (as defined) product in an inert atmosphere at from 500‹ C. to 1500‹ C, and for a time sufficient to produce monotungsten carbide as the principal component of the tungsten carbide product. The volatile tungsten compound is preferably a halide, e.g. its hexachloride, and the source of carbon selected from hydrocarbons or halogenated hydrocarbons.
GB42479/74A 1974-10-01 1974-10-01 Preparation of monotungsten carbide Expired GB1488362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB42479/74A GB1488362A (en) 1974-10-01 1974-10-01 Preparation of monotungsten carbide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB42479/74A GB1488362A (en) 1974-10-01 1974-10-01 Preparation of monotungsten carbide

Publications (1)

Publication Number Publication Date
GB1488362A true GB1488362A (en) 1977-10-12

Family

ID=10424623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42479/74A Expired GB1488362A (en) 1974-10-01 1974-10-01 Preparation of monotungsten carbide

Country Status (1)

Country Link
GB (1) GB1488362A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995004703A1 (en) * 1993-08-09 1995-02-16 The Dow Chemical Company Method for making submicrometer carbides, submicrometer solid sollution carbides, and the material resulting therefrom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995004703A1 (en) * 1993-08-09 1995-02-16 The Dow Chemical Company Method for making submicrometer carbides, submicrometer solid sollution carbides, and the material resulting therefrom
CN1045190C (en) * 1993-08-09 1999-09-22 Omg美国公司 Method for making submicrometer carbides, submicrometer solid sollution carbides, and the material resulting therefrom

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Legal Events

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