GB1352277A - Granular or powdered reaction component and a method of adding the same to a molten metal - Google Patents

Granular or powdered reaction component and a method of adding the same to a molten metal

Info

Publication number
GB1352277A
GB1352277A GB791172A GB791172A GB1352277A GB 1352277 A GB1352277 A GB 1352277A GB 791172 A GB791172 A GB 791172A GB 791172 A GB791172 A GB 791172A GB 1352277 A GB1352277 A GB 1352277A
Authority
GB
United Kingdom
Prior art keywords
reaction component
granular
feb
mixture
parts
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
GB791172A
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.)
KONINKLIJKE HOOGOVENS EN STAAL
Koninklijke Nederlandsche Hoogovens en Staalfabrieken NV
Original Assignee
KONINKLIJKE HOOGOVENS EN STAAL
Koninklijke Nederlandsche Hoogovens en Staalfabrieken NV
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 KONINKLIJKE HOOGOVENS EN STAAL, Koninklijke Nederlandsche Hoogovens en Staalfabrieken NV filed Critical KONINKLIJKE HOOGOVENS EN STAAL
Publication of GB1352277A publication Critical patent/GB1352277A/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
    • 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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

1352277 Steelmaking KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN NV 21 Feb 1972 [25 Feb 1971] 7911/72 Heading C7D A granular or powdered reaction component added during steelmaking is mixed with a solid, fine powdered material such as colloidal SiO 2 which reduces the cohesion of the grains of the reaction component. The amount of SiO 2 added is approximately 0À1wt. per cent of the mixture and the resulting improved contact surface area between the reaction component and molten steel permits the use of a reaction component which remains solid at the melting temperature of the metal. In the desulphurisation of pig iron the desulphuresmy agent may be a mixture of 70 parts of technical lime nitrogen and 30 parts of calcium carbonate containing carbon in the form of diamide lime.
GB791172A 1971-02-25 1972-02-21 Granular or powdered reaction component and a method of adding the same to a molten metal Expired GB1352277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7102540A NL7102540A (en) 1971-02-25 1971-02-25

Publications (1)

Publication Number Publication Date
GB1352277A true GB1352277A (en) 1974-05-08

Family

ID=19812567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB791172A Expired GB1352277A (en) 1971-02-25 1972-02-21 Granular or powdered reaction component and a method of adding the same to a molten metal

Country Status (11)

Country Link
US (1) US3847592A (en)
JP (1) JPS517443B1 (en)
AT (1) AT333811B (en)
BE (1) BE779766A (en)
DE (1) DE2207530C3 (en)
FR (1) FR2126367B1 (en)
GB (1) GB1352277A (en)
IT (1) IT949195B (en)
LU (1) LU64843A1 (en)
NL (1) NL7102540A (en)
SE (1) SE392915B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110712A (en) * 1979-02-15 1980-08-26 Kawasaki Steel Corp Desulfurizing agent for blowing-in
IT1174502B (en) * 1984-02-28 1987-07-01 Oet Metalconsult Srl ADDITIVE FOR METALLURGICAL LIQUIDS TO IMPROVE THE CHARACTERISTICS OF THE MANUFACTURED METAL OR METAL ALLOYS PRODUCED

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172758A (en) * 1965-03-09 Oxygen process for producing high
US3028232A (en) * 1953-05-06 1962-04-03 Voest Ag Process for blowing pig-iron
US2790712A (en) * 1955-04-26 1957-04-30 Mannesmann Ag Process for refining iron
US3202504A (en) * 1961-08-07 1965-08-24 Heber J Hamlet Process for refining and improving the quality of steel and other ferrous metals
AT249714B (en) * 1962-07-06 1966-10-10 Guszstahlwerk Witten Ag Process for the production of alloy steel by the oxygen inflation process
BE718288A (en) * 1967-07-27 1968-12-31
US3536475A (en) * 1967-11-17 1970-10-27 Battelle Memorial Institute Method of making pellets from a finely divided solid material
JPS5030571B1 (en) * 1970-03-27 1975-10-02

Also Published As

Publication number Publication date
SE392915B (en) 1977-04-25
LU64843A1 (en) 1972-07-05
DE2207530B2 (en) 1974-12-05
AT333811B (en) 1976-12-10
DE2207530C3 (en) 1975-07-24
US3847592A (en) 1974-11-12
BE779766A (en) 1972-08-24
JPS517443B1 (en) 1976-03-08
IT949195B (en) 1973-06-11
FR2126367B1 (en) 1976-07-09
FR2126367A1 (en) 1972-10-06
DE2207530A1 (en) 1972-09-07
ATA143472A (en) 1976-04-15
NL7102540A (en) 1972-08-29

Similar Documents

Publication Publication Date Title
US3598573A (en) Desulfurization agent and process
US4194902A (en) Desulfurization agent for ferrous melts and method of using the same
US4209325A (en) Desulphuration of metals
US4260413A (en) Desulfurizing composition, process for producing them and desulfurization of pig iron and steel
GB1352277A (en) Granular or powdered reaction component and a method of adding the same to a molten metal
GB1534586A (en) Method of desulphurising pig iron
GB1475617A (en) Desulphurising iron in torpedo ladles
JPS60152611A (en) Method for modifying slag
US4376139A (en) Process for treating metallic starting materials for smelting plants, particularly iron sponge particles
ES8101120A1 (en) Process for producing desulfurizing agents for pig iron or steel melts.
CA1104828A (en) Alkaline earth carbonate desulfurizing agents
GB1382543A (en) Process of making briquettes for metallurgical use
JPS5629611A (en) Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron
SU541853A1 (en) Activated Carbon Reducer
US3573033A (en) Processes of direct reduction of minerals
GB1466475A (en) Manufacture of spongy iron
US2185081A (en) Method of making alloys of iron and steel
US3304172A (en) Process for the manufacture of low phosphorus pig iron
JPS54121216A (en) Desulfurization of molten iron
JPS5585611A (en) Desulfurizing agent for hot iron at outside of furnace
JPS5486417A (en) Hot iron desulfurizing agent and production thereof
US3744991A (en) Acceleration of the dissolution of lime in the basic oxygen furnace process
ES2013073A6 (en) Production of manganese carbide and ferrous alloys.
JPS61157605A (en) Blowing desulfurizing agent
GB1199703A (en) Process for Directly Reducing Materials Containing Iron Oxide in a Rotary Kiln

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee