GB1076208A - Mehtod for producing a compacted and sintered vanadium carbide addition alloy - Google Patents

Mehtod for producing a compacted and sintered vanadium carbide addition alloy

Info

Publication number
GB1076208A
GB1076208A GB6965/66A GB696566A GB1076208A GB 1076208 A GB1076208 A GB 1076208A GB 6965/66 A GB6965/66 A GB 6965/66A GB 696566 A GB696566 A GB 696566A GB 1076208 A GB1076208 A GB 1076208A
Authority
GB
United Kingdom
Prior art keywords
heating
stage
briquettes
furnaces
atmosphere
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
GB6965/66A
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.)
Vanadium Corp of America
Original Assignee
Vanadium Corp of America
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 Vanadium Corp of America filed Critical Vanadium Corp of America
Publication of GB1076208A publication Critical patent/GB1076208A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C35/00—Master alloys for iron or steel
    • C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys
    • 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
    • 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
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/22—Obtaining vanadium
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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
    • C01P2006/10—Solid density
    • 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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Sintered vanadium carbide briquettes are prepared by heating fused and crushed V2O5 to 565-620 DEG C. in a hydrocarbon atmosphere to form V2O4, which is then heated to at least 1040 DEG C. in a hydrocarbon atmosphere to form VCxOy (where x is 0.4-0.6, y is 0.4-0.8), which is cooled to ambient temperature in a non-oxidizing atmosphere, mixed with sufficient C to effect a stoichiometric balance of C to combined O and to give an 8-15% excess of C, briquetting the mixture, heating the briquettes to 1370-1480 DEG C. while withdrawing the evolved gases until gas evolution stops, and cooling the briquettes in a non-oxidizing atmosphere. The hydrocarbon atmosphere may comprise natural gas, CH4, C2H6, C3H8, C4H10, or mixtures thereof. Specified carbons are graphite and lampblack. The first heating stage (565-620 DEG C.) and second (1040 DEG C.) may be conducted for 60-90 and 100-180 minutes respectively, and finely divided C may be added prior to either stage. The said first and second heating stages may be carried out in externally-fired rotating retort furnaces wherein the material is progressively heated as it passes through the furnaces; two such furnaces preferably being placed in tandem such that the material from the first stage furnace discharges directly into the second. The final heating stage (1370-1480 DEG C.) may be conducted in a vacuum furnace until the pressure is less than 0.05 mm. Hg.
GB6965/66A 1965-03-10 1966-02-17 Mehtod for producing a compacted and sintered vanadium carbide addition alloy Expired GB1076208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US438765A US3342553A (en) 1965-03-10 1965-03-10 Process for making vanadium carbide briquettes

Publications (1)

Publication Number Publication Date
GB1076208A true GB1076208A (en) 1967-07-19

Family

ID=23741916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6965/66A Expired GB1076208A (en) 1965-03-10 1966-02-17 Mehtod for producing a compacted and sintered vanadium carbide addition alloy

Country Status (3)

Country Link
US (1) US3342553A (en)
DE (1) DE1533403A1 (en)
GB (1) GB1076208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103274407A (en) * 2013-05-29 2013-09-04 北京工业大学 Preparation method of composite crystalline grain growth inhibitor with adjustable ratio

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637370A (en) * 1968-06-10 1972-01-25 Foote Mineral Co Production of ferrovanadium alloys
BE755793A (en) * 1969-09-09 1971-02-15 Hollandse Metallurg Ind Billit PROCESS FOR THE PREPARATION OF VANADIUM CARBIDE AND / OR - CARBONITRIDE AND / OR - NITRILE MATERIAL
BE757708A (en) * 1969-10-21 1971-04-20 Kerr Mc Gee Chem Corp PRODUCTION OF VANADIUM CARBIDE BY REDUCTION IN A SOLID STATE OF VANADIUM OXIDES
BE795533A (en) * 1972-02-18 1973-08-16 Billiton Research Bv PROCESS FOR THE PREPARATION OF METALS AND ALLOYS
RU2599757C2 (en) * 2014-05-08 2016-10-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Новосибирский государственный технический университет" Method of producing vanadium carbide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364123A (en) * 1941-11-14 1944-12-05 Carborundum Co Method of forming metal carbides
US3077385A (en) * 1959-01-06 1963-02-12 Gen Electric Process for producing carbides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103274407A (en) * 2013-05-29 2013-09-04 北京工业大学 Preparation method of composite crystalline grain growth inhibitor with adjustable ratio
CN103274407B (en) * 2013-05-29 2015-04-29 北京工业大学 Preparation method of composite crystalline grain growth inhibitor with adjustable ratio

Also Published As

Publication number Publication date
DE1533403A1 (en) 1970-01-08
US3342553A (en) 1967-09-19

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