GB1127145A - Process of producing pure iron powder and product thereof - Google Patents

Process of producing pure iron powder and product thereof

Info

Publication number
GB1127145A
GB1127145A GB2664666A GB2664666A GB1127145A GB 1127145 A GB1127145 A GB 1127145A GB 2664666 A GB2664666 A GB 2664666A GB 2664666 A GB2664666 A GB 2664666A GB 1127145 A GB1127145 A GB 1127145A
Authority
GB
United Kingdom
Prior art keywords
iron
powder
iron oxide
heated
water
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
GB2664666A
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.)
Centro Sperimentale Metallurgico SpA
Original Assignee
Centro Sperimentale Metallurgico SpA
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 Centro Sperimentale Metallurgico SpA filed Critical Centro Sperimentale Metallurgico SpA
Publication of GB1127145A publication Critical patent/GB1127145A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/006—Starting from ores containing non ferrous metallic oxides
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/008—Use of special additives or fluxing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C21B13/146—Multi-step reduction without melting
    • 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
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • 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

Abstract

1,127,145. Treatment of iron oxides. CENTRO SPERIMENTALE METALLURGICO S.p.A. 15 June, 1966 [23 June, 1965], No. 26646/66. Heading C1A. [Also in Division C7] A process for producing iron powder from a slime of red fume powder, i.e. the iron oxide fume produced in the conversion of pig iron in oxygen blowing converters, comprises the steps: (a) drying to form a compact agglomerate containing 0À5-1À0% water, (b) crushing and screening the agglomerate, (c) heating the particles to about 1000-1200‹ C. to consolidate them and (d) reducing the iron oxide particles at about 800-900‹ C. in a fluidized bed, a fixed bed, or a rotary kiln reactor with reducing gases, such as hydrogen or carbon monoxide, or with a solid or liquid reductant such as carbon black, charcoal or oil coke. The hot iron powder may then be heated to about 1000-1200‹ C. for 10-30 minutes in a non-oxidizing atmosphere before exposure to air. Iron oxide powder containing 5-20% water or red fume powder mixed with water, exhausted sulphuric pickling bath liquor, or solutions of ferrous sulphate or of cellulose derivations may also be used as the starting material. The reducing gases used may travel counter-current to the ferrous materials and may be heated to the temperature required for the reduction by heat exchange with the hot iron powder product. The iron oxide may be heated in step (c) by the combustion of the spent reducing gases but alternatively the spent gas may be enriched and recycled.
GB2664666A 1965-06-23 1966-06-15 Process of producing pure iron powder and product thereof Expired GB1127145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1457865 1965-06-23

Publications (1)

Publication Number Publication Date
GB1127145A true GB1127145A (en) 1968-09-11

Family

ID=11145228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2664666A Expired GB1127145A (en) 1965-06-23 1966-06-15 Process of producing pure iron powder and product thereof

Country Status (4)

Country Link
BE (1) BE682957A (en)
DE (1) DE1508007B1 (en)
GB (1) GB1127145A (en)
SE (1) SE306756B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248627A (en) * 1978-05-16 1981-02-03 Trw Inc. Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures
US5713982A (en) * 1995-12-13 1998-02-03 Clark; Donald W. Iron powder and method of producing such
WO1998049352A1 (en) * 1997-04-30 1998-11-05 Metallgesellschaft Aktiengesellschaft Method for thermal treatment of granulated iron ore before reduction
CN103255284A (en) * 2013-05-27 2013-08-21 南京钢铁股份有限公司 Method for processing and utilizing low-quality iron ore powder
CN113174459A (en) * 2021-04-13 2021-07-27 中国科学院过程工程研究所 Method for preparing secondary reduced iron powder by using iron ore concentrate
WO2022002748A1 (en) * 2020-06-30 2022-01-06 Aura Technologie Gmbh Method and device for recycling waste materials containing valuable metals
CN115820333A (en) * 2021-09-17 2023-03-21 山东大学 Resource recycling method of waste lubricating oil sludge

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209320A (en) * 1976-03-12 1980-06-24 Kawasaki Steel Corporation Process for producing low-oxygen iron-base metallic powder
DE102019207824A1 (en) * 2019-05-28 2020-12-03 Thyssenkrupp Steel Europe Ag Process for the production of iron powder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB878679A (en) * 1957-04-11 1961-10-04 Friedrich Frey Improvements in or relating to the production of black oxide or iron
US3160498A (en) * 1960-06-29 1964-12-08 Armco Steel Corp Fluidized iron ore reduction process and apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248627A (en) * 1978-05-16 1981-02-03 Trw Inc. Process for the manufacture and use of high purity carbonaceous reductant from carbon monoxide-containing gas mixtures
US5713982A (en) * 1995-12-13 1998-02-03 Clark; Donald W. Iron powder and method of producing such
US6569220B1 (en) 1995-12-13 2003-05-27 Donald W. Clark Iron powder and method of producing such
WO1998049352A1 (en) * 1997-04-30 1998-11-05 Metallgesellschaft Aktiengesellschaft Method for thermal treatment of granulated iron ore before reduction
AU733494B2 (en) * 1997-04-30 2001-05-17 Outotec Oyj Process for the thermal treatment of granular iron ore prior to the reduction
US6352572B1 (en) 1997-04-30 2002-03-05 Metallgesellschaft Ag Process for the thermal treatment of granulated iron ore prior to the reduction
KR100566899B1 (en) * 1997-04-30 2006-04-03 메탈게젤샤프트 악티엔게젤샤프트 Method for thermal treatment of granulated iron ore before reduction
CN103255284A (en) * 2013-05-27 2013-08-21 南京钢铁股份有限公司 Method for processing and utilizing low-quality iron ore powder
WO2022002748A1 (en) * 2020-06-30 2022-01-06 Aura Technologie Gmbh Method and device for recycling waste materials containing valuable metals
CN113174459A (en) * 2021-04-13 2021-07-27 中国科学院过程工程研究所 Method for preparing secondary reduced iron powder by using iron ore concentrate
CN115820333A (en) * 2021-09-17 2023-03-21 山东大学 Resource recycling method of waste lubricating oil sludge
CN115820333B (en) * 2021-09-17 2024-01-26 山东大学 Recycling recycling method of waste lubricating oil sludge

Also Published As

Publication number Publication date
DE1508007B1 (en) 1972-07-06
SE306756B (en) 1968-12-09
BE682957A (en) 1966-12-01

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