EA201800466A1 - METHOD FOR PREPARING A FLUX ON THE BASIS OF SECONDARY ALUMINUM CONTAINING SLAG - Google Patents

METHOD FOR PREPARING A FLUX ON THE BASIS OF SECONDARY ALUMINUM CONTAINING SLAG

Info

Publication number
EA201800466A1
EA201800466A1 EA201800466A EA201800466A EA201800466A1 EA 201800466 A1 EA201800466 A1 EA 201800466A1 EA 201800466 A EA201800466 A EA 201800466A EA 201800466 A EA201800466 A EA 201800466A EA 201800466 A1 EA201800466 A1 EA 201800466A1
Authority
EA
Eurasian Patent Office
Prior art keywords
flux
water
aluminum
soluble
slag
Prior art date
Application number
EA201800466A
Other languages
Russian (ru)
Other versions
EA037174B1 (en
Inventor
Болеслав Мечеславович Немененок
Леонид Владимирович Трибушевский
Виктор Александрович Шейнерт
Original Assignee
Белорусский Национальный Технический Университет
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 Белорусский Национальный Технический Университет filed Critical Белорусский Национальный Технический Университет
Priority to EA201800466A priority Critical patent/EA037174B1/en
Publication of EA201800466A1 publication Critical patent/EA201800466A1/en
Publication of EA037174B1 publication Critical patent/EA037174B1/en

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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/54—Processes yielding slags of special composition
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • 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)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Изобретение относится к области черной металлургии, к переработке вторичных алюмосодержащих шлаков и может быть использовано при производстве различных марок стали. Технический результат проявляется при использовании изобретения в виде вовлечения вновь образующихся отходов солевого алюмосодержащего шлака в производственные процессы приготовления флюса в черной металлургии за счет ликвидации шлаковых отвалов. Сущность изобретения выражается новой совокупностью признаков в способе приготовления флюса для раскисления в ковше сталеплавильного шлака на основе вторичного алюмосодержащего шлака, включающего алюминий металлический кислоторастворимый, оксид алюминия, оксиды калия и натрия, оксиды кремния и железа; согласно изобретению вышеприведенные компоненты для флюса предварительно гидратируют с получением водорастворимых алюминатов и водорастворимых щелочей, выщелачивают водорастворимые хлориды и щелочи путем их отмывания водой, осуществляют высокотемпературную сушку при 400-500°C для удаления кристаллизационной воды, связанной в окислах до влажности не более 1,5%, охлаждают, размалывают, рассеивают на фракции; в высушенный и рассеянный продукт флюса дополнительно вводят оксид магния и известь (CaO) в виде обожженого доломита, при этом в высушенный и рассеянный продукт флюса дополнительно был бы введен карбонат барий - стронциевый БСК-2 от 1,0 до 15 мас.%.The invention relates to the field of ferrous metallurgy, to the processing of secondary aluminum-containing slag and can be used in the production of various grades of steel. The technical result is manifested when using the invention in the form of involving the newly formed waste of saline aluminum-containing slag in the production processes of preparing flux in ferrous metallurgy due to the elimination of slag dumps. The essence of the invention is expressed by a new set of features in a method for preparing a flux for deoxidation in a ladle of steelmaking slag based on a secondary aluminum-containing slag, including acid-soluble metal aluminum, aluminum oxide, potassium and sodium oxides, silicon and iron oxides; According to the invention, the above components for the flux are pre-hydrated to obtain water-soluble aluminates and water-soluble alkalis, water-soluble chlorides and alkalis are leached by washing them with water, high-temperature drying is carried out at 400-500 ° C to remove water of crystallization bound in oxides to a moisture content of no more than 1.5 %, cool, grind, disperse into fractions; magnesium oxide and lime (CaO) in the form of burnt dolomite are additionally introduced into the dried and dispersed flux product, while barium carbonate - strontium BSK-2 from 1.0 to 15 wt% would be additionally introduced into the dried and dispersed flux product.

EA201800466A 2018-07-24 2018-07-24 Method for preparation of flux based on secondary aluminum-containing slag EA037174B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EA201800466A EA037174B1 (en) 2018-07-24 2018-07-24 Method for preparation of flux based on secondary aluminum-containing slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EA201800466A EA037174B1 (en) 2018-07-24 2018-07-24 Method for preparation of flux based on secondary aluminum-containing slag

Publications (2)

Publication Number Publication Date
EA201800466A1 true EA201800466A1 (en) 2020-01-31
EA037174B1 EA037174B1 (en) 2021-02-15

Family

ID=69374456

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201800466A EA037174B1 (en) 2018-07-24 2018-07-24 Method for preparation of flux based on secondary aluminum-containing slag

Country Status (1)

Country Link
EA (1) EA037174B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112077124A (en) * 2020-09-15 2020-12-15 江苏海光金属有限公司 Treatment method for harmless comprehensive utilization of secondary aluminum ash and preparation method thereof
CN113866143A (en) * 2021-09-18 2021-12-31 北京首钢股份有限公司 Rapid detection of SiO in resource sample2And/or CaO content

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2144896B1 (en) * 1996-03-28 2001-02-01 Iberdrola Sa ALUMINUM RECOVERY PROCEDURE FROM ALUMINUM ESCORIES.
US5669957A (en) * 1996-06-12 1997-09-23 Altek International, Inc. Dross compression apparatus and method utilizing ribs on collector and head
RU2396364C1 (en) * 2009-04-15 2010-08-10 ООО "Промышленная компания "Вторалюминпродукт" Flux for reducing, refining, modifying and alloying steel
RU2449032C1 (en) * 2011-04-21 2012-04-27 Федеральное государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" Processing method of saline aluminium-bearing slags so that covering fluxes and aluminium alloys - reducing agents are obtained
RU2547379C1 (en) * 2013-09-23 2015-04-10 Общество С Ограниченной Ответственностью "Группа "Магнезит" Metallurgical flux and method of its manufacturing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112077124A (en) * 2020-09-15 2020-12-15 江苏海光金属有限公司 Treatment method for harmless comprehensive utilization of secondary aluminum ash and preparation method thereof
CN113866143A (en) * 2021-09-18 2021-12-31 北京首钢股份有限公司 Rapid detection of SiO in resource sample2And/or CaO content
CN113866143B (en) * 2021-09-18 2023-11-14 北京首钢股份有限公司 Quick detection of SiO in resource samples 2 And/or CaO content

Also Published As

Publication number Publication date
EA037174B1 (en) 2021-02-15

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MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG TJ TM RU