GB820357A - Improvements relating to the manufacture of steel - Google Patents

Improvements relating to the manufacture of steel

Info

Publication number
GB820357A
GB820357A GB5202/58A GB520258A GB820357A GB 820357 A GB820357 A GB 820357A GB 5202/58 A GB5202/58 A GB 5202/58A GB 520258 A GB520258 A GB 520258A GB 820357 A GB820357 A GB 820357A
Authority
GB
United Kingdom
Prior art keywords
gas
dephosphorizing agent
converter
mixture
oxygen
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
GB5202/58A
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB820357A publication Critical patent/GB820357A/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
    • C21C5/34—Blowing through the bath

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

A method of manufacturing steel in a bottom blown converter comprises injecting a finely divided dephosphorizing agent carried by an oxidizing gas or gaseous mixture commercially free from nitrogen through the bottom of the converter. The gas may be a mixture of carbon dioxide and oxygen or oxygen and steam, the steam preferably being superheated, and the dephosphorizing agent may be lime or any other basic oxide or carbonate or a mixture thereof and may contain fluorspar or iron or manganese oxide as flux or may be a preformed slag. The melt may be blown with gas only, then with gas and dephosphorizing agent part of which may be added in bulk before commencing the blow. The process may be carried out in one converter or in two different converters.
GB5202/58A 1957-03-19 1958-02-18 Improvements relating to the manufacture of steel Expired GB820357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU820357X 1957-03-19

Publications (1)

Publication Number Publication Date
GB820357A true GB820357A (en) 1959-09-16

Family

ID=19733805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5202/58A Expired GB820357A (en) 1957-03-19 1958-02-18 Improvements relating to the manufacture of steel

Country Status (1)

Country Link
GB (1) GB820357A (en)

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