GB1193391A - A Process for the Production of Low Sulphur and Phosphorus Steel from Cast Iron by Using a Synthetic Slag, and a Synthetic Slag Suitable for the Process - Google Patents

A Process for the Production of Low Sulphur and Phosphorus Steel from Cast Iron by Using a Synthetic Slag, and a Synthetic Slag Suitable for the Process

Info

Publication number
GB1193391A
GB1193391A GB00853/68A GB1085368A GB1193391A GB 1193391 A GB1193391 A GB 1193391A GB 00853/68 A GB00853/68 A GB 00853/68A GB 1085368 A GB1085368 A GB 1085368A GB 1193391 A GB1193391 A GB 1193391A
Authority
GB
United Kingdom
Prior art keywords
synthetic slag
cast iron
production
mixture
steel
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
GB00853/68A
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.)
Centro Sperimentale Metallurgico SpA
Original Assignee
Centro Sperimentale Metallurgico SpA
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 Centro Sperimentale Metallurgico SpA filed Critical Centro Sperimentale Metallurgico SpA
Publication of GB1193391A publication Critical patent/GB1193391A/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
    • 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
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C5/36—Processes yielding slags of special composition

Landscapes

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

Abstract

1,193,391. Producing steel. CENTRO SPERIMENTALE METALLURGICO S.p.A. March 6, 1968 [March 20, 1967], No. 10853/68. Heading C7D. Steel with less than 0À015% each of S and P is produced from cast iron in an oxygen blown converter to which is fed a synthetic slag-forming material comprising a partially or totally sintered mixture containing lime or limestone and an iron oxidecontaining material. The mixture may consist of 95-50% CaO (as limestone powder) and 5-50% FeO (as powdered iron ore), with or without 10-20% fine coke, and may be sintered at over 1000‹ C. on a Dwight-Lloyd machine. Prior to sintering, the mixture may be pelletized in a humid atmosphere until at least 7% Ca(OH) 2 is present, and the pellets treated with air or CO 2 .
GB00853/68A 1967-03-20 1968-03-06 A Process for the Production of Low Sulphur and Phosphorus Steel from Cast Iron by Using a Synthetic Slag, and a Synthetic Slag Suitable for the Process Expired GB1193391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT789416 1967-03-20

Publications (1)

Publication Number Publication Date
GB1193391A true GB1193391A (en) 1970-05-28

Family

ID=11125458

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00853/68A Expired GB1193391A (en) 1967-03-20 1968-03-06 A Process for the Production of Low Sulphur and Phosphorus Steel from Cast Iron by Using a Synthetic Slag, and a Synthetic Slag Suitable for the Process

Country Status (4)

Country Link
DE (1) DE1608310A1 (en)
GB (1) GB1193391A (en)
LU (1) LU55577A1 (en)
NL (1) NL6803845A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814005A (en) * 1986-06-10 1989-03-21 Jeffery Thompson Flux material for steelmaking
US4909844A (en) * 1986-06-10 1990-03-20 Jeffery Thompson Flux material for steelmaking
WO2011156881A1 (en) * 2010-06-18 2011-12-22 Vamtec S/A Development of synthetic sintered slag for controlling the sulphur content of steels and metal alloys

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814005A (en) * 1986-06-10 1989-03-21 Jeffery Thompson Flux material for steelmaking
US4909844A (en) * 1986-06-10 1990-03-20 Jeffery Thompson Flux material for steelmaking
WO2011156881A1 (en) * 2010-06-18 2011-12-22 Vamtec S/A Development of synthetic sintered slag for controlling the sulphur content of steels and metal alloys

Also Published As

Publication number Publication date
DE1608310A1 (en) 1970-12-10
LU55577A1 (en) 1968-05-06
NL6803845A (en) 1968-09-23

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees