EA201101615A1 - METHOD OF MELTING HIGH-CARBON FERROCHROME - Google Patents

METHOD OF MELTING HIGH-CARBON FERROCHROME

Info

Publication number
EA201101615A1
EA201101615A1 EA201101615A EA201101615A EA201101615A1 EA 201101615 A1 EA201101615 A1 EA 201101615A1 EA 201101615 A EA201101615 A EA 201101615A EA 201101615 A EA201101615 A EA 201101615A EA 201101615 A1 EA201101615 A1 EA 201101615A1
Authority
EA
Eurasian Patent Office
Prior art keywords
briquettes
ore
carbon
quartzite
fraction
Prior art date
Application number
EA201101615A
Other languages
Russian (ru)
Other versions
EA016426B1 (en
Inventor
Фазыл Каюмович ШАДИЕВ
Джубатхан Джумаханович ИЗБЕМБЕТОВ
Манат Жаксыбергенович ТОЛЫМБЕКОВ
Original Assignee
Фазыл Каюмович ШАДИЕВ
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 Фазыл Каюмович ШАДИЕВ filed Critical Фазыл Каюмович ШАДИЕВ
Publication of EA201101615A1 publication Critical patent/EA201101615A1/en
Publication of EA016426B1 publication Critical patent/EA016426B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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
    • C21C5/5264—Manufacture of alloyed steels including ferro-alloys
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • C21C2007/0062—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires with introduction of alloying or treating agents under a compacted form different from a wire, e.g. briquette, pellet
    • 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
    • C21C7/0025—Adding carbon material
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Изобретение относится к производству ферросплавов, а именно к способам получения высокоуглеродистого феррохрома в рудовосстановительной электропечи. Достигаемым техническим результатом является вовлечение в производственный процесс некондиционных по крупности материалов - хромовой руды и углеродсодержащего восстановителя, улучшение экологической ситуации. Для достижения указанного результата фракцию хромовой руды с размерами кусков менее 10 мм (отсев руды) и фракцию углеродсодержащего восстановителя (фракцию менее 5 мм) смешивают в соотношении 1:(0,3-0,5) и далее подают в брикетный пресс. Брикеты получают при давлении 25-50 МПа. Используют хромовую руду, содержащую, мас.%: 44,0-56,0 CrO; 4,0-12,0 SiOи углеродсодержащий восстановитель, содержащий 86% твердого углерода. Полученные брикеты далее загружают в бункер, из которого эти брикеты поступают в электропечь. Туда же подают кварцит с таким расчетом, чтобы соотношение брикетов и кварцита составляло, мас.%: брикеты - 93,7-96,2; кварцит - 3,8-6,3.The invention relates to the production of ferroalloys, and in particular to methods for producing high-carbon ferrochrome in an ore-reducing electric furnace. The achieved technical result is the involvement in the production process of substandard materials in size - chrome ore and a carbon-containing reductant, improving the environmental situation. To achieve this result, the fraction of chrome ore with lump sizes of less than 10 mm (ore screening) and the fraction of a carbon-containing reductant (fraction less than 5 mm) are mixed in a ratio of 1: (0.3-0.5) and then fed into a briquette press. Briquettes are produced at a pressure of 25-50 MPa. Chromium ore is used, containing, wt%: 44.0-56.0 CrO; 4.0-12.0 SiO and a carbonaceous reducing agent containing 86% solid carbon. The resulting briquettes are then loaded into a hopper, from which these briquettes are fed to an electric furnace. Quartzite is also served there so that the ratio of briquettes and quartzite is, wt%: briquettes - 93.7-96.2; quartzite - 3.8-6.3.

EA201101615A 2010-10-27 2011-04-07 Method for melting high-carbon ferrochrome EA016426B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KZ20101327 2010-10-27
PCT/KZ2011/000006 WO2012057593A1 (en) 2010-10-27 2011-04-07 Method for melting high-carbon ferrochrome

Publications (2)

Publication Number Publication Date
EA201101615A1 true EA201101615A1 (en) 2012-04-30
EA016426B1 EA016426B1 (en) 2012-04-30

Family

ID=45994124

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201101615A EA016426B1 (en) 2010-10-27 2011-04-07 Method for melting high-carbon ferrochrome

Country Status (5)

Country Link
CN (1) CN102686758B (en)
EA (1) EA016426B1 (en)
FI (1) FI20126085A (en)
UA (1) UA103121C2 (en)
WO (1) WO2012057593A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA030670B1 (en) * 2016-05-20 2018-09-28 Фазыл Каюмович ШАДИЕВ Method for producing briquettes for ferrochrome production
CN115161469A (en) * 2022-07-21 2022-10-11 山西太钢万邦炉料有限公司 Production method of high-proportion south Africa chromium ore pellets

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215522A (en) * 1960-11-22 1965-11-02 Union Carbide Corp Silicon metal production
GB1024692A (en) * 1962-01-24 1966-03-30 Techmet Ltd Production of ferro-chrome alloys
US4053307A (en) * 1976-01-16 1977-10-11 Showa Denko K. K. Process for manufacture of high-chromium iron alloy
RU2083693C1 (en) * 1995-06-01 1997-07-10 Акционерное общество закрытого типа "Урал-ВИМ" Method of manufacturing chromium briquets for producing ferrochrome
RU2115627C1 (en) * 1997-05-06 1998-07-20 Открытое акционерное общество Челябинский электрометаллургический комбинат Blend for preparing high carbon ferrochrome
RU2241057C1 (en) * 2003-04-09 2004-11-27 ОАО "Серовский завод ферросплавов" Batch for producing of high-carbon ferrochrome
RU2403305C2 (en) * 2008-12-17 2010-11-10 Государственное Учреждение Институт металлургии Уральского отделения Российской Академии Наук (ГУ ИМЕТ УрО РАН) Charge for obtaining high-carbon ferrochrome

Also Published As

Publication number Publication date
FI20126085A (en) 2012-10-18
CN102686758A (en) 2012-09-19
CN102686758B (en) 2014-07-09
EA016426B1 (en) 2012-04-30
UA103121C2 (en) 2013-09-10
WO2012057593A1 (en) 2012-05-03

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