GB718001A - Improvements in or relating to processes for the pre-treatment of raw thomas iron - Google Patents

Improvements in or relating to processes for the pre-treatment of raw thomas iron

Info

Publication number
GB718001A
GB718001A GB10323/52A GB1032352A GB718001A GB 718001 A GB718001 A GB 718001A GB 10323/52 A GB10323/52 A GB 10323/52A GB 1032352 A GB1032352 A GB 1032352A GB 718001 A GB718001 A GB 718001A
Authority
GB
United Kingdom
Prior art keywords
thomas
oxygen
iron
silicon
relating
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
GB10323/52A
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.)
Huettenwerk Haspe AG
Original Assignee
Huettenwerk Haspe AG
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 Huettenwerk Haspe AG filed Critical Huettenwerk Haspe AG
Publication of GB718001A publication Critical patent/GB718001A/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur

Abstract

Crude Thomas iron containing more than 0.40 per cent. silicon is treated before introduction into a Thomas converter with a gaseous reagent and a pulverized oxygen- or carbon dioxide-containing substance to reduce the silicon to not less than 0.10 to 0.15 per cent. without the temperature rising higher than that obtained in a normal blow during the removal of silicon. The process may be carried out in a ladle, mixer, or converter. The gaseous reagent may be oxygen and water-vapour or oxygen and nitrogen in which the oxygen is less than is present in atmospheric air, and the pulverized reagents may be iron oxide, limestone, or soda.
GB10323/52A 1951-09-08 1952-04-24 Improvements in or relating to processes for the pre-treatment of raw thomas iron Expired GB718001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE718001X 1951-09-08

Publications (1)

Publication Number Publication Date
GB718001A true GB718001A (en) 1954-11-03

Family

ID=6626834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10323/52A Expired GB718001A (en) 1951-09-08 1952-04-24 Improvements in or relating to processes for the pre-treatment of raw thomas iron

Country Status (1)

Country Link
GB (1) GB718001A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254987A (en) * 1962-05-12 1966-06-07 Huettenwerk Oberhausen Ag Method of operating an iron-refining basic converter and for refining iron into steel
US4295882A (en) * 1978-10-24 1981-10-20 Nippon Steel Corporation Steel making process
EP0073274A1 (en) * 1981-08-19 1983-03-09 Nippon Steel Corporation Method of preliminary desiliconization of molten iron by injecting gaseous oxygen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3254987A (en) * 1962-05-12 1966-06-07 Huettenwerk Oberhausen Ag Method of operating an iron-refining basic converter and for refining iron into steel
US4295882A (en) * 1978-10-24 1981-10-20 Nippon Steel Corporation Steel making process
EP0073274A1 (en) * 1981-08-19 1983-03-09 Nippon Steel Corporation Method of preliminary desiliconization of molten iron by injecting gaseous oxygen

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