GB746841A - Improvements in iron recovery - Google Patents

Improvements in iron recovery

Info

Publication number
GB746841A
GB746841A GB1309753A GB1309753A GB746841A GB 746841 A GB746841 A GB 746841A GB 1309753 A GB1309753 A GB 1309753A GB 1309753 A GB1309753 A GB 1309753A GB 746841 A GB746841 A GB 746841A
Authority
GB
United Kingdom
Prior art keywords
slag
ore
electric furnace
carbonaceous material
heat
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
GB1309753A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB746841A publication Critical patent/GB746841A/en
Expired 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
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • 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

Abstract

A process for reducing iron oxide ores comprises mixing iron oxide ore, scrap iron, fluxing material, and solid carbonaceous material, heating the mixture to the sintering temperature to effect (1) reduction to metal of at least a part of the ore, (2) chemical combination of part of the unreduced oxide, fluxing material, and gangue, and (3) the production of a granular free flowing product, placing the granular product on the surface of a molten slag bath, maintaining the slag at a temperature high enough to provide all the heat required to reduce the ore, and then separating the molten metal from the slag. The granular product may be fed on to the molten slag bath in an electric furnace, the electrodes of which heat the slag by arc-resistance heating, and which are maintained between 1/2 inch above and 2 inch below the surface of the slag. The sintering may be performed in a rotary kiln and the granular product fed to the electric furnace without loss of heat. The amount of carbonaceous material may be that required to reduce the ore and produce a molten metal containing not more than 2 per cent carbon. All the carbonaceous material may be added with the sinter or part with the sinter and part directly to the electric furnace. The slag used may contain 0,7-1,5 molecules lime to 1 molecule silica.
GB1309753A 1953-03-10 1953-05-11 Improvements in iron recovery Expired GB746841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US746841XA 1953-03-10 1953-03-10

Publications (1)

Publication Number Publication Date
GB746841A true GB746841A (en) 1956-03-21

Family

ID=22121025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309753A Expired GB746841A (en) 1953-03-10 1953-05-11 Improvements in iron recovery

Country Status (1)

Country Link
GB (1) GB746841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012057685A1 (en) * 2010-10-26 2012-05-03 Luossavaara-Kiirunavaara Ab Method, arrangement and pelletising plant
WO2012057687A1 (en) * 2010-10-26 2012-05-03 Luossavaara-Kiirunavaara Ab Method, arrangement and pelletising plant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012057685A1 (en) * 2010-10-26 2012-05-03 Luossavaara-Kiirunavaara Ab Method, arrangement and pelletising plant
WO2012057687A1 (en) * 2010-10-26 2012-05-03 Luossavaara-Kiirunavaara Ab Method, arrangement and pelletising plant
US9011571B2 (en) 2010-10-26 2015-04-21 Luossavaara-Kiirunavaara Ab Method, arrangement and pelletising plant
US9068243B2 (en) 2010-10-26 2015-06-30 Luossavaara-Kiirunavaara Ab Method, arrangement, and pelletising plant
US9719152B2 (en) 2010-10-26 2017-08-01 Luossavaara-Kiirunavaara Ab Method, arrangement, and pelletising plant

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