EA201690720A1 - Способы и композиции для уменьшения слипания таблеток оксида железа, применяемых в способах прямого восстановления - Google Patents

Способы и композиции для уменьшения слипания таблеток оксида железа, применяемых в способах прямого восстановления

Info

Publication number
EA201690720A1
EA201690720A1 EA201690720A EA201690720A EA201690720A1 EA 201690720 A1 EA201690720 A1 EA 201690720A1 EA 201690720 A EA201690720 A EA 201690720A EA 201690720 A EA201690720 A EA 201690720A EA 201690720 A1 EA201690720 A1 EA 201690720A1
Authority
EA
Eurasian Patent Office
Prior art keywords
methods
iron oxide
compositions
slipping
reducing
Prior art date
Application number
EA201690720A
Other languages
English (en)
Other versions
EA032270B1 (ru
Inventor
Мохамед Бахгат Саддик
Сайед Ниаз Ахсан
Original Assignee
Сауди Бэйсик Индастрис Корпорейшн
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 Сауди Бэйсик Индастрис Корпорейшн filed Critical Сауди Бэйсик Индастрис Корпорейшн
Publication of EA201690720A1 publication Critical patent/EA201690720A1/ru
Publication of EA032270B1 publication Critical patent/EA032270B1/ru

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
    • 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
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/30—Oxides other than silica
    • C04B14/308—Iron oxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft 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
    • C22B1/2406—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

Abstract

Здесь раскрыты способы и композиции для приготовления таблеток оксида железа с покрытием, включая наружное покрытие с цементом, обладающих пониженным индексом слипания и сохраняющих после восстановления высокий уровень металлизации. Усовершенствованные таблетки оксида железа с покрытием можно использовать для приготовления железа прямого восстановления (DRI) с повышенной производительностью.
EA201690720A 2013-11-05 2014-11-04 Способы и композиции для уменьшения слипания окатышей оксида железа, применяемых в способах прямого восстановления EA032270B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361900257P 2013-11-05 2013-11-05
PCT/IB2014/065795 WO2015068104A1 (en) 2013-11-05 2014-11-04 Methods and compositions for decreasing adherence of iron oxide pellets used in direct reduction processes

Publications (2)

Publication Number Publication Date
EA201690720A1 true EA201690720A1 (ru) 2016-08-31
EA032270B1 EA032270B1 (ru) 2019-05-31

Family

ID=51903968

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201690720A EA032270B1 (ru) 2013-11-05 2014-11-04 Способы и композиции для уменьшения слипания окатышей оксида железа, применяемых в способах прямого восстановления

Country Status (5)

Country Link
US (1) US20160251735A1 (ru)
EP (1) EP3055434B1 (ru)
CN (2) CN105705661A (ru)
EA (1) EA032270B1 (ru)
WO (1) WO2015068104A1 (ru)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10550445B2 (en) 2015-07-07 2020-02-04 Sabic Global Technologies B.V. Coated iron ore pellets and a process of making and reducing the same to form reduced iron pellets

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627806A (ja) * 1985-07-02 1987-01-14 Kobe Steel Ltd 竪型炉を用いる直接製鉄方法
JPH0280522A (ja) * 1988-09-16 1990-03-20 Kobe Steel Ltd 高炉装入用二層構造ペレット
AT407402B (de) * 1999-04-22 2001-03-26 Voest Alpine Ind Anlagen Verfahren zur herstellung von für einen direktreduktionsprozess einsetzbarem einsatzmaterial
US7896963B2 (en) * 2003-09-23 2011-03-01 Hanqing Liu Self-reducing, cold-bonded pellets
CN1766131A (zh) * 2005-11-21 2006-05-03 方兴 一种生产直接还原铁和生铁的方法
CN100463975C (zh) * 2006-03-09 2009-02-25 武汉桂坤科技有限公司 海绵铁生产方法
CN102321799A (zh) * 2011-08-26 2012-01-18 沈阳博联特熔融还原科技有限公司 一种防止直接还原金属球团粘结的方法

Also Published As

Publication number Publication date
US20160251735A1 (en) 2016-09-01
WO2015068104A1 (en) 2015-05-14
EP3055434B1 (en) 2020-04-22
CN111893235A (zh) 2020-11-06
CN105705661A (zh) 2016-06-22
EA032270B1 (ru) 2019-05-31
EP3055434A1 (en) 2016-08-17

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