GB1444183A - Process for the production of low-sulphur prereduced iron pellet - Google Patents

Process for the production of low-sulphur prereduced iron pellet

Info

Publication number
GB1444183A
GB1444183A GB3435873A GB3435873A GB1444183A GB 1444183 A GB1444183 A GB 1444183A GB 3435873 A GB3435873 A GB 3435873A GB 3435873 A GB3435873 A GB 3435873A GB 1444183 A GB1444183 A GB 1444183A
Authority
GB
United Kingdom
Prior art keywords
mixture
pellets
reduction
scavenger
iron ore
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
GB3435873A
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.)
CB&I Technology Inc
Original Assignee
Lummus Co
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 Lummus Co filed Critical Lummus Co
Publication of GB1444183A publication Critical patent/GB1444183A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

1444183 Direct reduction of iron ore LUMMUS CO 19 July 1973 [20 July 1972] 34358/73 Heading C7D In a process for the production of pre-reduced iron oxide pellets, a pelletized mixture of iron ore, liquid carbonaceous binder and a sulphur scavenger is reduced at 1800‹-2500‹F, wherein (a) if the C present in the pellets is sufficient only to effect 85% or less reduction, the heating of the pellets from 1500‹F to the reduction takes less than 1 hour, and (b) if the C is sufficient to reduce greater than 85%, the heating takes from 1-6 hours. The S scavenger is CaO, CaCl 2 , NaCI, CaSO 4 , CaCO 3 , MgCl 2 , MgO, FeCl 3 , dolomite or a mixture thereof, and is present from 0À01-5 wt. per cent. In the pelletizing process, a pre-heated mixture of iron ore, e.g. tacouite, and scavenger is sprayed with hot oil, e.g. residual oil or coal tar pitch, which cracks on contact to deposit C on the mixture. The carbonized mixture is ground, fed to a pelletizer and hence to a coking kiln. Pre-heated ore and oil are added to the pellets prior to coking. The resulting pellets may have a S content of 0À03% if to be used in an electric furnace, or 0À25% for a blast furnace. The reduction may take place with additional external C present, e.g. coal, coke or a mixture thereof.
GB3435873A 1972-07-20 1973-07-19 Process for the production of low-sulphur prereduced iron pellet Expired GB1444183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US273522A US3865574A (en) 1972-07-20 1972-07-20 Process for the production of low-sulfur prereduced iron pellets

Publications (1)

Publication Number Publication Date
GB1444183A true GB1444183A (en) 1976-07-28

Family

ID=23044284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3435873A Expired GB1444183A (en) 1972-07-20 1973-07-19 Process for the production of low-sulphur prereduced iron pellet

Country Status (12)

Country Link
US (1) US3865574A (en)
JP (1) JPS5529132B2 (en)
BE (1) BE802581A (en)
BR (1) BR7305466D0 (en)
CA (1) CA988722A (en)
DE (1) DE2336496C2 (en)
FR (1) FR2193879B1 (en)
GB (1) GB1444183A (en)
IT (1) IT991294B (en)
LU (1) LU68061A1 (en)
SE (1) SE403137B (en)
ZA (1) ZA734932B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZW18288A1 (en) * 1988-01-05 1989-04-19 Middelburg Steel & Alloys Pty Sulphur and silicon control in ferrochromium production
US5213742A (en) * 1990-09-11 1993-05-25 Vitaphore Corporation Method of producing pores of controlled geometry on a thermoplastic polymer
EA001158B1 (en) * 1996-03-15 2000-10-30 Кабусики Кайся Кобе Сейко Сё Method and apparatus for making metallic iron
BE1010766A3 (en) * 1996-11-25 1999-01-05 Centre Rech Metallurgique Method of manufacturing an iron sponge with a low sulphur content
US6342089B1 (en) * 1997-09-02 2002-01-29 Mcgaa John R. Direct reduced iron pellets
JP4153281B2 (en) * 2002-10-08 2008-09-24 株式会社神戸製鋼所 Method for producing titanium oxide-containing slag
AU2012200914B2 (en) * 2005-08-30 2012-05-03 E. I. Du Pont De Nemours And Company Ore reduction process and titanium oxide and iron metallization product
UA92751C2 (en) * 2005-08-30 2010-12-10 Е. І. Дю Пон Де Немур Енд Компані Method for extraction of titanium and iron oxides from ore
US8372179B2 (en) * 2007-10-15 2013-02-12 E I Du Pont De Nemours And Company Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom
US8202480B2 (en) * 2009-06-25 2012-06-19 Uop Llc Apparatus for separating pitch from slurry hydrocracked vacuum gas oil
US8540870B2 (en) * 2009-06-25 2013-09-24 Uop Llc Process for separating pitch from slurry hydrocracked vacuum gas oil
US8231775B2 (en) 2009-06-25 2012-07-31 Uop Llc Pitch composition
US9150470B2 (en) 2012-02-02 2015-10-06 Uop Llc Process for contacting one or more contaminated hydrocarbons

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805141A (en) * 1954-05-24 1957-09-03 Univ Minnesota Pelletizing process
US2811434A (en) * 1954-12-21 1957-10-29 Nat Lead Co Process for treating ilmenite-containing materials to produce metallic iron concentrates and titanium dioxide concentrates
US2944884A (en) * 1958-01-23 1960-07-12 United States Steel Corp Method of beneficiating reducing and briquetting iron ore
US3093474A (en) * 1959-02-20 1963-06-11 Elektrokemisk As Process of reducing metal oxides
GB1008407A (en) * 1960-12-06 1965-10-27 Yawata Iron & Steel Co Process for separating non-molten slag from titanium-containing iron sands
DE1262311B (en) * 1962-06-30 1968-03-07 Metallgesellschaft Ag Method and device for reducing iron oxides (concentrates) to sponge iron
US3314780A (en) * 1964-07-07 1967-04-18 Inland Steel Co Process of pelletizing ore
US3420656A (en) * 1966-09-02 1969-01-07 Lummus Co Process for forming hard oxide pellets and product thereof
US3427148A (en) * 1966-10-10 1969-02-11 Bergwerksverband Gmbh Process of producing iron-coke bodies
US3495971A (en) * 1967-05-19 1970-02-17 Mcdowell Wellman Eng Co Smelting furnace charge composition and method of making same
US3642465A (en) * 1969-06-16 1972-02-15 Lummus Co Process for the production of highly prereduced oxide pellets

Also Published As

Publication number Publication date
JPS4944924A (en) 1974-04-27
ZA734932B (en) 1974-06-26
DE2336496A1 (en) 1974-01-31
US3865574A (en) 1975-02-11
CA988722A (en) 1976-05-11
FR2193879B1 (en) 1980-10-17
LU68061A1 (en) 1973-09-26
AU5821073A (en) 1975-01-23
BR7305466D0 (en) 1974-08-15
JPS5529132B2 (en) 1980-08-01
IT991294B (en) 1975-07-30
SE403137B (en) 1978-07-31
BE802581A (en) 1973-11-16
DE2336496C2 (en) 1982-06-24
FR2193879A1 (en) 1974-02-22

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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