GB740547A - Process for the production of carbides - Google Patents

Process for the production of carbides

Info

Publication number
GB740547A
GB740547A GB25495/52A GB2549552A GB740547A GB 740547 A GB740547 A GB 740547A GB 25495/52 A GB25495/52 A GB 25495/52A GB 2549552 A GB2549552 A GB 2549552A GB 740547 A GB740547 A GB 740547A
Authority
GB
United Kingdom
Prior art keywords
carbide
carbides
ore
aluminium
vanadium
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
GB25495/52A
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.)
ELEKTROMETALLURGIE GmbH
Deutsche Edelstahlwerke AG
Original Assignee
ELEKTROMETALLURGIE GmbH
Deutsche Edelstahlwerke AG
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 ELEKTROMETALLURGIE GmbH, Deutsche Edelstahlwerke AG filed Critical ELEKTROMETALLURGIE GmbH
Publication of GB740547A publication Critical patent/GB740547A/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
    • 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
    • C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
    • 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
    • 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
    • C22B5/06—Dry methods smelting of sulfides or formation of mattes by carbides or the like

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Carbides of tungsten, molybdenum vanadium, titanium, tantalum, niobium, chromium or boron are prepared by heating an ore thereof containing the element in oxide form with at least one of the reducing agents, aluminium, silicon, calcium and magnesium in the presence of sufficient carbon to carburize the element to be obtained as carbide, the reaction being carried out without the aid of heat other than that provided by the exothermic reaction. The ore may contain, or may have added to it, iron, nickel or cobalt. Small quantities (up to 1 per cent) of vanadium, aluminium (if not already present) or cerium mixed metal may also be added. In a modification, a further heat-supplying addition such as potassium perchlorate may also be made. Iron, nickel and cobalt may be dissolved from the metallic carbide regulus, for example by hydrochloric acid, to yield pure carbides. Specification 687,946 is referred to.ALSO:Carbides of tungsten, molybdenum, vanadium, titanium, tantalum, niobium, chromium or boron are prepared by heating an ore thereof containing the element in oxide form with at least one of the reducing agents, aluminium, silicon, calcium and magnesium in the presence of sufficient carbon to carburize the element to be obtained as carbide, the reaction being carried out without the aid of heat other than that provided by the exothermic reaction. The ore may contain, or may have added to it, iron, nickel or cobalt. Small quantities (up to 1 per cent) of vanadium, aluminium (if not already present) or cerium mixed metal may also be added. In a modification a further heat-supplying addition such as potassium perchlorate may also be made. The carbide regulus obtained may be treated with hydrochloric acid for example, to dissolve undesired metals and the resulting carbide or carbides employed for the production of hard metal. Specification 687,946, [Group III], is referred to.
GB25495/52A 1951-10-12 1952-10-10 Process for the production of carbides Expired GB740547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE740547X 1951-10-12

Publications (1)

Publication Number Publication Date
GB740547A true GB740547A (en) 1955-11-16

Family

ID=6643780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25495/52A Expired GB740547A (en) 1951-10-12 1952-10-10 Process for the production of carbides

Country Status (1)

Country Link
GB (1) GB740547A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328129A (en) * 1963-01-09 1967-06-27 Hitachi Ltd Production of boron carbide
US3338679A (en) * 1963-01-09 1967-08-29 Hitachi Ltd Method for producing boron carbide
US3379503A (en) * 1965-11-12 1968-04-23 Kennametal Inc Process for preparing tungsten monocarbide
US3423179A (en) * 1966-06-22 1969-01-21 Webb James E Catalyst for growth of boron carbide crystal whiskers
WO2002072473A1 (en) * 2001-03-12 2002-09-19 Institut Strukturnoi Makrokinetiki I Problem Materialovedeniya Rossiiskoi Akademii Nauk Method for producing tungsten carbide and tungsten carbide produced by said method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328129A (en) * 1963-01-09 1967-06-27 Hitachi Ltd Production of boron carbide
US3338679A (en) * 1963-01-09 1967-08-29 Hitachi Ltd Method for producing boron carbide
US3379503A (en) * 1965-11-12 1968-04-23 Kennametal Inc Process for preparing tungsten monocarbide
US3423179A (en) * 1966-06-22 1969-01-21 Webb James E Catalyst for growth of boron carbide crystal whiskers
WO2002072473A1 (en) * 2001-03-12 2002-09-19 Institut Strukturnoi Makrokinetiki I Problem Materialovedeniya Rossiiskoi Akademii Nauk Method for producing tungsten carbide and tungsten carbide produced by said method

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