ATE107710T1 - Ofen und verfahren zur reduktion eines chromvorproduktes durch schmelzen. - Google Patents

Ofen und verfahren zur reduktion eines chromvorproduktes durch schmelzen.

Info

Publication number
ATE107710T1
ATE107710T1 AT88906890T AT88906890T ATE107710T1 AT E107710 T1 ATE107710 T1 AT E107710T1 AT 88906890 T AT88906890 T AT 88906890T AT 88906890 T AT88906890 T AT 88906890T AT E107710 T1 ATE107710 T1 AT E107710T1
Authority
AT
Austria
Prior art keywords
blowing
sec
molten metal
combustion
slug
Prior art date
Application number
AT88906890T
Other languages
English (en)
Inventor
Haruyoshi Tanabe
Masahiro Kawakami
Kenji Takahashi
Katsuhiro Iwasaki
Shigeru Inoue
Original Assignee
Nippon Kokan Kk
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27508355&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE107710(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP62201002A external-priority patent/JP2595549B2/ja
Priority claimed from JP62330980A external-priority patent/JP2595597B2/ja
Priority claimed from JP62330977A external-priority patent/JP2658105B2/ja
Application filed by Nippon Kokan Kk filed Critical Nippon Kokan Kk
Application granted granted Critical
Publication of ATE107710T1 publication Critical patent/ATE107710T1/de

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
    • 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
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • 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
    • C21C5/005—Manufacture of stainless steel
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • 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
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
AT88906890T 1987-08-13 1988-08-11 Ofen und verfahren zur reduktion eines chromvorproduktes durch schmelzen. ATE107710T1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP62201002A JP2595549B2 (ja) 1987-08-13 1987-08-13 Ｃｒ原料の溶融還元法
JP62330980A JP2595597B2 (ja) 1987-12-26 1987-12-26 Ｃｒ原料の溶融還元法
JP62330977A JP2658105B2 (ja) 1987-12-26 1987-12-26 Ｃｒ原料の溶融還元炉
CA000596453A CA1338731C (en) 1987-08-13 1989-04-12 Method of smelting reduction of chromium raw materials and a smelting reduction furnace thereof
CN89103058A CN1047109A (zh) 1987-08-13 1989-05-06 铬原料的熔化还原法及熔化还原炉

Publications (1)

Publication Number Publication Date
ATE107710T1 true ATE107710T1 (de) 1994-07-15

Family

ID=27508355

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88906890T ATE107710T1 (de) 1987-08-13 1988-08-11 Ofen und verfahren zur reduktion eines chromvorproduktes durch schmelzen.

Country Status (7)

Country Link
US (1) US4961784A (de)
EP (1) EP0328677B1 (de)
CN (1) CN1047109A (de)
AT (1) ATE107710T1 (de)
CA (1) CA1338731C (de)
DE (1) DE3850381T2 (de)
WO (1) WO1989001532A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02221336A (ja) * 1989-02-21 1990-09-04 Nkk Corp Ｎｉ鉱石の溶融還元法
US5302184A (en) * 1989-06-02 1994-04-12 Cra Services Limited Manufacture of ferroalloys using a molten bath reactor
US5282881A (en) * 1989-08-24 1994-02-01 Ausmelt Pty. Ltd. Smelting of metallurgical waste materials containing iron compounds and toxic elements
US5259866A (en) * 1990-10-23 1993-11-09 Japan Metals & Chemicals Co., Ltd. Method for producing high-purity metallic chromium
BR9606660A (pt) * 1995-09-28 1997-09-30 Kawasaki Steel Corparation Processo para fusão redutora de minério de cromo
US5702502A (en) 1995-12-14 1997-12-30 Armco Inc. Method for direct use of chromite ore in the production of stainless steel
US5885322A (en) * 1996-03-22 1999-03-23 Steel Technology Corporation Method for reducing iron losses in an iron smelting process
RU2148672C1 (ru) * 1998-10-14 2000-05-10 Открытое акционерное общество "Межрегиональное научно-производственное объединение "Полиметалл" Способ получения феррохрома
AUPQ599400A0 (en) 2000-03-03 2000-03-23 Technological Resources Pty Limited Direct smelting process and apparatus
RU2228383C2 (ru) * 2002-07-17 2004-05-10 Открытое акционерное общество "Институт Гипроникель" Способ получения углеродистого феррохрома
RU2241057C1 (ru) * 2003-04-09 2004-11-27 ОАО "Серовский завод ферросплавов" Шихта для получения высокоуглеродистого феррохрома
AT412349B (de) * 2003-06-25 2005-01-25 Voest Alpine Ind Anlagen Verfahren zur herstellung einer legierten metallschmelze und erzeugungsanlage hierzu
RU2260630C1 (ru) * 2004-09-27 2005-09-20 Открытое акционерное общество "Ключевский завод ферросплавов" Способ алюминотермического получения хрома металлического (варианты)
RU2403305C2 (ru) * 2008-12-17 2010-11-10 Государственное Учреждение Институт металлургии Уральского отделения Российской Академии Наук (ГУ ИМЕТ УрО РАН) Шихта для получения высокоуглеродистого феррохрома
CN102808066B (zh) * 2012-08-30 2014-07-02 长春工业大学 一种氩氧精炼铬铁合金减少铬损失的方法
DE102020208774A1 (de) * 2020-07-14 2022-01-20 Sms Group Gmbh Verfahren zur Gewinnung von Nichteisenmetallen, insbesondere von Schwarz- und/oder Rohkupfer, aus organik-haltigen Schrotten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594155A (en) * 1968-10-30 1971-07-20 Allegheny Ludlum Steel Method for dynamically controlling decarburization of steel
US3854932A (en) * 1973-06-18 1974-12-17 Allegheny Ludlum Ind Inc Process for production of stainless steel
US4130417A (en) * 1975-07-11 1978-12-19 Gfe Gesellschaft Fur Elektrometallurgie Mit Beschrankter Haftung Process for refining high-carbon ferro-alloys
JPS57145917A (en) * 1981-03-03 1982-09-09 Sumitomo Metal Ind Ltd Refining method for high chromium steel
JPS5891149A (ja) * 1981-11-21 1983-05-31 Nippon Steel Corp 高クロム合金の溶製方法
US4783219A (en) * 1985-11-13 1988-11-08 Nippon Kokan Kabushiki Kaisha Method for melting and reducing chrome ore

Also Published As

Publication number Publication date
US4961784A (en) 1990-10-09
EP0328677B1 (de) 1994-06-22
EP0328677A4 (de) 1989-12-28
AU606457B2 (en) 1991-02-07
WO1989001532A1 (fr) 1989-02-23
AU2256088A (en) 1989-03-09
DE3850381T2 (de) 1994-10-20
DE3850381D1 (de) 1994-07-28
EP0328677A1 (de) 1989-08-23
CN1047109A (zh) 1990-11-21
CA1338731C (en) 1996-11-26

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Legal Events

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UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee