GB1207003A - Apparatus and method for continuous refining of molten metals - Google Patents

Apparatus and method for continuous refining of molten metals

Info

Publication number
GB1207003A
GB1207003A GB38628/68A GB3862868A GB1207003A GB 1207003 A GB1207003 A GB 1207003A GB 38628/68 A GB38628/68 A GB 38628/68A GB 3862868 A GB3862868 A GB 3862868A GB 1207003 A GB1207003 A GB 1207003A
Authority
GB
United Kingdom
Prior art keywords
metal
furnace
slag
flow
molten metal
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
GB38628/68A
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.)
DIRECTOR OF NAT RES INST FOR M
National Research Institute for Metals
Original Assignee
DIRECTOR OF NAT RES INST FOR M
National Research Institute for Metals
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 DIRECTOR OF NAT RES INST FOR M, National Research Institute for Metals filed Critical DIRECTOR OF NAT RES INST FOR M
Publication of GB1207003A publication Critical patent/GB1207003A/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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/567—Manufacture of steel by other methods operating in a continuous way
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S75/00—Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
    • Y10S75/957—Continuous refining of molten iron

Abstract

1,207,003. Refining iron. DIRECTOR OF NATIONAL RESEARCH INSTITUTE FOR METALS. Aug. 13, 1968 [Aug. 14, 1967], No. 38628/68. Heading C7D. Molten metal such as pig iron is continuously refined in at least two trough type furnaces arranged in series, each furnace as shown in Fig. 1 including a flow inlet 2 for molten metal at one end and a flow outlet 3 for molten metal at the other end, a blowing zone having at least one lance 4 for feeding oxygen and slagging material, a flow zone adjacent the blowing zone in which slag and metal react while flowing concurrently to the outlet, a slag-off hole 6 and gas-offtake 7 and a skimmer 5 for separating slag and gas from the outflowing metal. Alternatively as shown in Fig. 2 the slag and metal may flow countercurrently in the flow zone the slag-off hole 6 and gass-offtake 7 being situated near the metal inlet 2. Metal may flow from one furnace to the next via an intermediate reservoir, Fig.5 (not shown). In an example using four furnaces in series, dephosphorization, silicon and manganeze removal and a minor amount of decarburization is effected in the first furnace at a temperature in the range 1300-1550‹ C. with addition of slag-forming material such as lime in the range 1/60 to 1/15 of the pig iron treated and with a mean residence time of molten metal in the furnace of 1 to 15 minutes. In the second furnace the major decarburization is effected at a temperature of 1550-1700‹ C. In the third furnace a final refining is effected and in the fourth the metal is deoxidized and its composition adjusted.
GB38628/68A 1967-08-14 1968-08-13 Apparatus and method for continuous refining of molten metals Expired GB1207003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5177767 1967-08-14

Publications (1)

Publication Number Publication Date
GB1207003A true GB1207003A (en) 1970-09-30

Family

ID=12896362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38628/68A Expired GB1207003A (en) 1967-08-14 1968-08-13 Apparatus and method for continuous refining of molten metals

Country Status (4)

Country Link
US (1) US3617042A (en)
DE (1) DE1758814B2 (en)
FR (1) FR1576970A (en)
GB (1) GB1207003A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260414A (en) * 1978-06-30 1981-04-07 Nippon Kokan Kabushiki Kaisha Process for recovering and utilizing useful substances from molten metal produced during reduction treatment of steel slag

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822871A (en) * 1968-12-07 1974-07-09 T Morisaki Apparatus for continuous processing of sulfide ores and apparatus therefor
US3912501A (en) * 1971-05-11 1975-10-14 Castejon Javier Gonzalez De Method for the production of iron and steel
US3901489A (en) * 1972-05-04 1975-08-26 Mitsubishi Kizoku Kabushiki Ka Continuous process for refining sulfide ores
BR8504996A (en) * 1984-02-04 1986-01-21 Nippon Kokan Kk APPARATUS TO REMOVE IMPURITIES CONTAINED IN CAST IRON FROM BLASTED OVEN
JPS60162717A (en) * 1984-02-04 1985-08-24 Nippon Kokan Kk <Nkk> Treatment of molten iron
US5064174A (en) * 1989-10-16 1991-11-12 Northern States Power Company Apparatus for production of energy and iron materials, including steel
US5055131A (en) * 1987-08-31 1991-10-08 Northern States Power Company Cogeneration process for production of energy and iron materials
US5066325A (en) * 1987-08-31 1991-11-19 Northern States Power Company Cogeneration process for production of energy and iron materials, including steel
US5045112A (en) * 1988-02-08 1991-09-03 Northern States Power Company Cogeneration process for production of energy and iron materials, including steel
DE69132590T3 (en) * 1990-11-20 2005-02-03 Mitsubishi Materials Corp. Refining furnace for copper
MY110307A (en) * 1990-11-20 1998-04-30 Mitsubishi Materials Corp Apparatus for continuous copper smelting
US5258054A (en) * 1991-11-06 1993-11-02 Ebenfelt Li W Method for continuously producing steel or semi-steel
CH686764A8 (en) * 1994-09-29 1996-08-15 Von Roll Umwelttechnik Ag Process for the treatment of solid residues from waste incineration plants and device for carrying out the process.
US5733358A (en) * 1994-12-20 1998-03-31 Usx Corporation And Praxair Technology, Inc. Process and apparatus for the manufacture of steel from iron carbide

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1886937A (en) * 1930-12-20 1932-11-08 Eagle Picher Lead Company Furnace construction
GB543245A (en) * 1940-08-13 1942-02-16 Frederic Barnes Waldron Improvements in the manufacture of steel
US2622977A (en) * 1947-11-14 1952-12-23 Kalling Bo Michael Sture Desulfurization of iron and iron alloys
US2741556A (en) * 1952-02-05 1956-04-10 Allied Chem & Dye Corp Method of desulfurizing molten ferrous metal
GB1003026A (en) * 1963-02-21 1965-09-02 Farnsfield Ltd Continuous production of furnace products
US3275432A (en) * 1965-02-23 1966-09-27 Alexandrovsky George Oxygen steel making

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260414A (en) * 1978-06-30 1981-04-07 Nippon Kokan Kabushiki Kaisha Process for recovering and utilizing useful substances from molten metal produced during reduction treatment of steel slag

Also Published As

Publication number Publication date
DE1758814B2 (en) 1972-11-23
US3617042A (en) 1971-11-02
FR1576970A (en) 1969-08-01
DE1758814A1 (en) 1972-03-23

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Legal Events

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