GB762994A - Improvements in or relating to the manufacture of steels - Google Patents

Improvements in or relating to the manufacture of steels

Info

Publication number
GB762994A
GB762994A GB834854A GB834854A GB762994A GB 762994 A GB762994 A GB 762994A GB 834854 A GB834854 A GB 834854A GB 834854 A GB834854 A GB 834854A GB 762994 A GB762994 A GB 762994A
Authority
GB
United Kingdom
Prior art keywords
mixture
per cent
furnace
ore
low
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
GB834854A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB834854A priority Critical patent/GB762994A/en
Publication of GB762994A publication Critical patent/GB762994A/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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/2083—Arrangements for the melting of metals or the treatment of molten metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

An aluminiothermic mixture for use in the manufacture of steels and alloy steels comprises a mixture of (a) an alloy consisting of: Si 30-45 per cent; Al 35-55 per cent; Fe 10-25 per cent; Ti 2-15 per cent and obtained electrically from a starting material containing aluminium oxide, silica, iron oxide and titanium oxide such as alumina, low-grade bauxite, low-grade ash-containing coal, boiler ash or processing slag, and (b) iron ore. The mixture together with small amounts of alkali or alkaline earth metal salts and, if necessary, magnesium may be used in the powdered form or briquetted. The oxygen content of the ore may be up to 15 per cent higher than that required to react with tin alloy and is preferably inversely proportion to the silicon content of the ore. The mixture can be ignited on a pan or furnace hearth or in a shaft furnace, rotary furnace, convertor or drum mixer for the direct production of low-carbon steel or can be added to a steel or pig iron charge in an open-hearth furnace or converter. The mixture may be carried into the furnace or melting bath by a stream of air, oxygen, oxygen-enriched air, nitrogen, nitrogen-enriched air or argon and scrap may be added to the charge to regulate the reaction temperature.
GB834854A 1954-03-22 1954-03-22 Improvements in or relating to the manufacture of steels Expired GB762994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB834854A GB762994A (en) 1954-03-22 1954-03-22 Improvements in or relating to the manufacture of steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB834854A GB762994A (en) 1954-03-22 1954-03-22 Improvements in or relating to the manufacture of steels

Publications (1)

Publication Number Publication Date
GB762994A true GB762994A (en) 1956-12-05

Family

ID=9850809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB834854A Expired GB762994A (en) 1954-03-22 1954-03-22 Improvements in or relating to the manufacture of steels

Country Status (1)

Country Link
GB (1) GB762994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ297553B6 (en) * 2005-09-15 2007-02-07 Mittal Steel Ostrava A. S. Alloying method of low-carbon steel with nitrogen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ297553B6 (en) * 2005-09-15 2007-02-07 Mittal Steel Ostrava A. S. Alloying method of low-carbon steel with nitrogen

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