ES8205434A1 - Self-reducing iron oxide agglomerates. - Google Patents

Self-reducing iron oxide agglomerates.

Info

Publication number
ES8205434A1
ES8205434A1 ES504099A ES504099A ES8205434A1 ES 8205434 A1 ES8205434 A1 ES 8205434A1 ES 504099 A ES504099 A ES 504099A ES 504099 A ES504099 A ES 504099A ES 8205434 A1 ES8205434 A1 ES 8205434A1
Authority
ES
Spain
Prior art keywords
iron oxide
weight
self
agglomerates
iron
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
ES504099A
Other languages
Spanish (es)
Other versions
ES504099A0 (en
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.)
Michigan Technological University
University of Michigan
Original Assignee
Michigan Technological University
University of Michigan
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 Michigan Technological University, University of Michigan filed Critical Michigan Technological University
Publication of ES8205434A1 publication Critical patent/ES8205434A1/en
Publication of ES504099A0 publication Critical patent/ES504099A0/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary hearth-type furnaces
    • 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
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates

Abstract

Self-reducing agglomerates of an iron oxide-containing material, such as an iron ore concentrate, having a compressive strength of at least about 45 Kg. are produced by preparing a moistened mixture of the ore concentrate, a finely-divided natural pyrolyzed carbonaceous material having a volatile matter (on dry basis) content of about 20% by weight or less in an amount at least sufficient to reduce all the iron oxide to metallic iron, about 1 to about 30% by weight of a bonding agent, such as burned or hydrated lime, and 0 up to about 3% by weight of a siliceous material (as SiO2), such as silica forming green agglomerates from this mixture and hydrothermally hardening the green agglomerates by contacting them with steam under pressure.
ES504099A 1980-07-21 1981-07-20 A PROCEDURE FOR OBTAINING SELF-REDUCING AGGLOMERATES FROM A FINALLY DIVIDED MATERIAL CONTAINING IRON OXIDE Granted ES504099A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17064380A 1980-07-21 1980-07-21

Publications (2)

Publication Number Publication Date
ES8205434A1 true ES8205434A1 (en) 1982-06-01
ES504099A0 ES504099A0 (en) 1982-06-01

Family

ID=22620722

Family Applications (1)

Application Number Title Priority Date Filing Date
ES504099A Granted ES504099A0 (en) 1980-07-21 1981-07-20 A PROCEDURE FOR OBTAINING SELF-REDUCING AGGLOMERATES FROM A FINALLY DIVIDED MATERIAL CONTAINING IRON OXIDE

Country Status (10)

Country Link
EP (1) EP0044669B1 (en)
JP (1) JPS5773136A (en)
AU (1) AU543924B2 (en)
BR (1) BR8104694A (en)
CA (1) CA1158442A (en)
DE (1) DE3176704D1 (en)
ES (1) ES504099A0 (en)
IN (1) IN157793B (en)
MX (1) MX156802A (en)
ZA (1) ZA814465B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047330B2 (en) * 1982-02-02 1985-10-21 日本鋼管株式会社 Method and apparatus for producing uncalcined agglomerate ore
US5055131A (en) * 1987-08-31 1991-10-08 Northern States Power Company Cogeneration process for production of energy and iron materials
US5064174A (en) * 1989-10-16 1991-11-12 Northern States Power Company Apparatus 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
US5066325A (en) * 1987-08-31 1991-11-19 Northern States Power Company Cogeneration process for production of energy and iron materials, including steel
WO1997016573A1 (en) * 1995-11-01 1997-05-09 Westralian Sands Limited Agglomeration of iron oxide waste materials
IT1304374B1 (en) * 1998-05-27 2001-03-15 Gloster Nv METHOD FOR THE RECYCLING OF POWDERS DERIVING FROM STEEL PROCESSING PROCESSES OR SIMILAR THROUGH THE MANUFACTURE OF
TW562860B (en) * 2000-04-10 2003-11-21 Kobe Steel Ltd Method for producing reduced iron
US7628839B2 (en) 2004-12-07 2009-12-08 Iwao Iwasaki Method and system for producing metallic iron nuggets
JP5825180B2 (en) * 2012-04-03 2015-12-02 新日鐵住金株式会社 Method for producing unfired carbon-containing agglomerated ore for blast furnace using coal char
CN105907954A (en) * 2016-06-06 2016-08-31 江苏省冶金设计院有限公司 Composite bonding agent and application of composite bonding agent in mineral powder forming

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806779A (en) * 1953-09-29 1957-09-17 Mcwane Cast Iron Pipe Co Method of producing iron
US2793109A (en) * 1954-04-09 1957-05-21 Surface Combustion Corp Induration process for powdered iron oxide containing material
DE1243880B (en) * 1958-07-18 1967-07-06 Blocked Iron Corp Process for the production of a piece ore product
US3264092A (en) * 1963-06-20 1966-08-02 Mcdowell Wellman Eng Co System for producing carbonized and metallized iron ore pellets
DE1583942C3 (en) * 1968-01-31 1975-02-06 Blocked Iron Corp., Albany, N.Y. (V.St.A.) Process for the production of a lump ore
US3895088A (en) * 1971-01-14 1975-07-15 Control Michigan Technological Method for agglomerating steel plant waste dusts
US3770416A (en) * 1972-04-17 1973-11-06 Univ Michigan Tech Treatment of zinc rich steel mill dusts for reuse in steel making processes
DE2517543C2 (en) * 1975-04-21 1985-12-12 Board Of Control Of Michigan Technological University, Houghton, Mich. Process for producing hardened agglomerates from metallurgical dust

Also Published As

Publication number Publication date
IN157793B (en) 1986-06-21
MX156802A (en) 1988-10-05
AU7272681A (en) 1982-01-28
ZA814465B (en) 1982-07-28
EP0044669B1 (en) 1988-04-06
JPS5773136A (en) 1982-05-07
CA1158442A (en) 1983-12-13
EP0044669A1 (en) 1982-01-27
BR8104694A (en) 1982-04-06
AU543924B2 (en) 1985-05-09
DE3176704D1 (en) 1988-05-11
ES504099A0 (en) 1982-06-01
JPH0123531B2 (en) 1989-05-02

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