FI20217132A1 - Sulan kuonan ja ruostumattoman teräksen ja ferrokromin valmistuksessa syntyvien jäännösten yhdistetty sulatus - Google Patents

Sulan kuonan ja ruostumattoman teräksen ja ferrokromin valmistuksessa syntyvien jäännösten yhdistetty sulatus Download PDF

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Publication number
FI20217132A1
FI20217132A1 FI20217132A FI20217132A FI20217132A1 FI 20217132 A1 FI20217132 A1 FI 20217132A1 FI 20217132 A FI20217132 A FI 20217132A FI 20217132 A FI20217132 A FI 20217132A FI 20217132 A1 FI20217132 A1 FI 20217132A1
Authority
FI
Finland
Prior art keywords
metal
slag
stainless steel
ferrochromium
converter
Prior art date
Application number
FI20217132A
Other languages
English (en)
Swedish (sv)
Inventor
Kimmo Vallo
Timo Parviainen
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Publication of FI20217132A1 publication Critical patent/FI20217132A1/fi

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • 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
    • C22B7/02—Working-up flue dust
    • 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
    • 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
    • C04B5/00—Treatment of  metallurgical  slag ; Artificial stone from molten  metallurgical  slag 
    • C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous 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
    • C21C5/005—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
    • C21C5/52—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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
    • 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
    • C22B9/16—Remelting metals
    • C22B9/20—Arc remelting
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • 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
    • C21C2200/00—Recycling of waste 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Ceramic Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Structural Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Esillä oleva keksintö koskee menetelmää, missä ruostumattoman teräs- ja ferrokromituotannon metalli- ja metallioksidipitoisten sivuvirtojen sisältävät kuonat ja jäännökset käsitellään pyrometallurgisesti. Keksitty käsittelymenetelmä on sulatusprosessi kaikille sivuvirroille ja jäännöksille mainituilta teollisuudenaloilta. Virrat käsitellään pääasiassa sulana energian säästämiseksi.
FI20217132A 2019-03-01 2020-02-28 Sulan kuonan ja ruostumattoman teräksen ja ferrokromin valmistuksessa syntyvien jäännösten yhdistetty sulatus FI20217132A1 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20195153A FI20195153A1 (fi) 2019-03-01 2019-03-01 Metalli- ja metallioksidipitoisten sivuvirtojen hyödyntäminen valokaariuuniteknologian avulle
PCT/FI2020/050129 WO2020178480A1 (en) 2019-03-01 2020-02-28 Combined smelting of molten slags and residuals from stainless steel and ferrochromium works

Publications (1)

Publication Number Publication Date
FI20217132A1 true FI20217132A1 (fi) 2021-08-26

Family

ID=72337367

Family Applications (2)

Application Number Title Priority Date Filing Date
FI20195153A FI20195153A1 (fi) 2019-03-01 2019-03-01 Metalli- ja metallioksidipitoisten sivuvirtojen hyödyntäminen valokaariuuniteknologian avulle
FI20217132A FI20217132A1 (fi) 2019-03-01 2020-02-28 Sulan kuonan ja ruostumattoman teräksen ja ferrokromin valmistuksessa syntyvien jäännösten yhdistetty sulatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FI20195153A FI20195153A1 (fi) 2019-03-01 2019-03-01 Metalli- ja metallioksidipitoisten sivuvirtojen hyödyntäminen valokaariuuniteknologian avulle

Country Status (8)

Country Link
JP (1) JP2022523397A (fi)
KR (1) KR20210134310A (fi)
CN (1) CN113366129A (fi)
CA (1) CA3129671A1 (fi)
FI (2) FI20195153A1 (fi)
SE (1) SE2150998A1 (fi)
TW (1) TW202033771A (fi)
WO (1) WO2020178480A1 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113265534B (zh) * 2021-04-14 2023-03-31 嘉峪关宏电铁合金有限责任公司 一种低品铬铁渣再利用生产工艺

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA963234B (en) * 1995-05-02 1996-07-29 Holderbank Financ Glarus Process for the production of hydraulic binders and/or alloys such as e g ferrochromium of ferrovanadium
AT405839B (de) * 1996-01-17 1999-11-25 Holderbank Financ Glarus Verfahren zum herstellen von roheisen, buntmetall-legierungen, fecr und synthetischen hochofenschlacken unter verwendung von metalloxidhaltigen müllverbrennungsrückständen oder schlacken
JP3539263B2 (ja) * 1999-02-03 2004-07-07 Ｊｆｅスチール株式会社 金属含有物からの還元金属の製造方法および還元金属製造用移動型炉床炉
AT407263B (de) * 1999-04-22 2001-02-26 Holderbank Financ Glarus Verfahren zum aufarbeiten von stahlschlacken
JP2001316712A (ja) * 2000-05-02 2001-11-16 Nippon Steel Corp 含クロム滓からのクロム回収方法
ZA200300865B (en) * 2001-06-18 2004-02-26 Kobe Steel Ltd Method for manufacturing metal nuggets.
AT412349B (de) * 2003-06-25 2005-01-25 Voest Alpine Ind Anlagen Verfahren zur herstellung einer legierten metallschmelze und erzeugungsanlage hierzu
KR20050109763A (ko) * 2004-05-17 2005-11-22 주식회사 포스코 스테인레스 제강 슬래그의 유가금속 회수방법
KR100793591B1 (ko) * 2006-12-28 2008-01-14 주식회사 포스코 산화크롬 함유 슬래그로부터의 크롬 금속 환원 방법
CN107058677A (zh) * 2017-05-22 2017-08-18 山西太钢不锈钢股份有限公司 一种利用不锈钢电炉渣的冶炼方法
CN108676942A (zh) * 2018-05-18 2018-10-19 廖辉明 一种含铁和或锌铅铜锡等物料与熔融钢渣协同处理回收方法

Also Published As

Publication number Publication date
JP2022523397A (ja) 2022-04-22
TW202033771A (zh) 2020-09-16
CA3129671A1 (en) 2020-09-10
FI20195153A1 (fi) 2020-09-02
CN113366129A (zh) 2021-09-07
WO2020178480A1 (en) 2020-09-10
KR20210134310A (ko) 2021-11-09
SE2150998A1 (en) 2021-08-12

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