GB216198A - Improved process for the manufacture of steel and the fixation of nitrogen - Google Patents

Improved process for the manufacture of steel and the fixation of nitrogen

Info

Publication number
GB216198A
GB216198A GB498323A GB498323A GB216198A GB 216198 A GB216198 A GB 216198A GB 498323 A GB498323 A GB 498323A GB 498323 A GB498323 A GB 498323A GB 216198 A GB216198 A GB 216198A
Authority
GB
United Kingdom
Prior art keywords
nitrogen
fixation
manufacture
steel
converter
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
GB498323A
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.)
JNC Corp
Original Assignee
JNC 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 JNC Corp filed Critical JNC Corp
Priority to GB498323A priority Critical patent/GB216198A/en
Publication of GB216198A publication Critical patent/GB216198A/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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • 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

In a process for the manufacture of steel and the fixation of nitrogen, molten iron in a converter is subjected to an air blast to remove most or all of the silicon present and then the air blast is cut off and nitrogen blown in thus removing the carbon in the form of cyanogen compounds, such as cyanogen or hydrocyanic acid, which pass off with the gases from the converter and are removed therefrom by treating with steam to form ammonia compounds or converting into nitric acid. To assist the reaction, a basic element, such as an alkali metal in vapour form, or hydrogen is introduced with the nitrogen, the sulphur and phosphorus present as impurities in the iron being also removed. Instead of nitrogen producer gas or any gas containing nitrogen and hydrogen as its main constituents may be used but in this case the alkali metal is not used. Specifications 11797/14 and 2286/15 are referred to.
GB498323A 1923-02-20 1923-02-20 Improved process for the manufacture of steel and the fixation of nitrogen Expired GB216198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB498323A GB216198A (en) 1923-02-20 1923-02-20 Improved process for the manufacture of steel and the fixation of nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB498323A GB216198A (en) 1923-02-20 1923-02-20 Improved process for the manufacture of steel and the fixation of nitrogen

Publications (1)

Publication Number Publication Date
GB216198A true GB216198A (en) 1924-05-20

Family

ID=9787524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB498323A Expired GB216198A (en) 1923-02-20 1923-02-20 Improved process for the manufacture of steel and the fixation of nitrogen

Country Status (1)

Country Link
GB (1) GB216198A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855293A (en) * 1955-03-21 1958-10-07 Air Liquide Method and apparatus for treating molten metal with oxygen
US3138648A (en) * 1958-11-19 1964-06-23 Pennsylvania Engineering Corp Exhaust hood for oxygen furnaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855293A (en) * 1955-03-21 1958-10-07 Air Liquide Method and apparatus for treating molten metal with oxygen
US3138648A (en) * 1958-11-19 1964-06-23 Pennsylvania Engineering Corp Exhaust hood for oxygen furnaces

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