GB979335A - Improvements in or relating to the treatment of ferrous metal - Google Patents

Improvements in or relating to the treatment of ferrous metal

Info

Publication number
GB979335A
GB979335A GB2077662A GB2077662A GB979335A GB 979335 A GB979335 A GB 979335A GB 2077662 A GB2077662 A GB 2077662A GB 2077662 A GB2077662 A GB 2077662A GB 979335 A GB979335 A GB 979335A
Authority
GB
United Kingdom
Prior art keywords
gas
refining
stream
oxygen
stage
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
GB2077662A
Inventor
Leslie Cook
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.)
BOC Group Ltd
Original Assignee
British Oxigen Ltd
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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB2077662A priority Critical patent/GB979335A/en
Publication of GB979335A publication Critical patent/GB979335A/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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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

Abstract

In a process for the production of successive batches of steel from charges of iron or steel scrap with or without molten iron, the charge is heated in the presence of a lime-containing flux by means of an oxidizing flame and is then refined with a stream of oxygen-containing gas, the initial slag being removed at the end of the heating stage or early in the refining stage and further lime-containing flux being introduced to form a second slag which is retained in the vessel at the end of the refining to form the initial slag for a new charge. The refining gas may be fed in a high pressure stream through the outer passage of a coaxial double lance, a low pressure stream of fuel gas or suspension of liquid fuel in carrier gas being supplied through the inner passage during the heating stage. During the refining stage powdered fluxing materials may be added in a low pressure stream of inert gas, oxygen or fuel gas; if desired carbonaceous material may be mixed with the flux, which may include iron oxide, aluminium oxide and fluorspar. In an alternative method of heating, oil under pressure may be delivered to a nozzle which atomizes it into the oxygen stream. Specification 799,943 is referred to.
GB2077662A 1962-05-30 1962-05-30 Improvements in or relating to the treatment of ferrous metal Expired GB979335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2077662A GB979335A (en) 1962-05-30 1962-05-30 Improvements in or relating to the treatment of ferrous metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2077662A GB979335A (en) 1962-05-30 1962-05-30 Improvements in or relating to the treatment of ferrous metal

Publications (1)

Publication Number Publication Date
GB979335A true GB979335A (en) 1965-01-01

Family

ID=10151501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2077662A Expired GB979335A (en) 1962-05-30 1962-05-30 Improvements in or relating to the treatment of ferrous metal

Country Status (1)

Country Link
GB (1) GB979335A (en)

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