GB841352A - Process for the manufacture of ferrochromium alloys - Google Patents

Process for the manufacture of ferrochromium alloys

Info

Publication number
GB841352A
GB841352A GB3839758A GB3839758A GB841352A GB 841352 A GB841352 A GB 841352A GB 3839758 A GB3839758 A GB 3839758A GB 3839758 A GB3839758 A GB 3839758A GB 841352 A GB841352 A GB 841352A
Authority
GB
United Kingdom
Prior art keywords
chromium
iron
alloys
ferrochromium
ore
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
GB3839758A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB841352A publication Critical patent/GB841352A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • 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

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

Abstract

A furnacing process for the production of ferrochromium alloys comprises smelting chromium ore with an iron-chromium-silicon alloy without addition of lime to form the ferrochromium alloy and a substantially neutral chromium-containing slag in which the chromium to iron ratio is at least 4:1, and treating the slag with a carbonaceous reducing agent and silica, and, if required, with chromium ore, to produce an iron-chromium-silicon alloy for recycling to the furnacing process. Iron-chromium-silicon alloys containing 30-50% Si, 15-30% Si or 2-15% Si may be used to produce low-carbon (less than 0.5%C), medium carbon (.5-4%C) and high carbon (over 4%C) ferro chromium alloys respectively. The smelting operation may take place in a furnace having a chromium ore lining.
GB3839758A 1957-12-02 1958-11-28 Process for the manufacture of ferrochromium alloys Expired GB841352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US841352XA 1957-12-02 1957-12-02

Publications (1)

Publication Number Publication Date
GB841352A true GB841352A (en) 1960-07-13

Family

ID=22183088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3839758A Expired GB841352A (en) 1957-12-02 1958-11-28 Process for the manufacture of ferrochromium alloys

Country Status (1)

Country Link
GB (1) GB841352A (en)

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