EA200802087A1 - Способ, связанный с производством стали - Google Patents

Способ, связанный с производством стали

Info

Publication number
EA200802087A1
EA200802087A1 EA200802087A EA200802087A EA200802087A1 EA 200802087 A1 EA200802087 A1 EA 200802087A1 EA 200802087 A EA200802087 A EA 200802087A EA 200802087 A EA200802087 A EA 200802087A EA 200802087 A1 EA200802087 A1 EA 200802087A1
Authority
EA
Eurasian Patent Office
Prior art keywords
steel
hydroxide suspension
production
method associated
neutralizing
Prior art date
Application number
EA200802087A
Other languages
English (en)
Other versions
EA014405B1 (ru
Inventor
Свен-Эрик Луннер
Original Assignee
Отокумпу Оюй
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 Отокумпу Оюй filed Critical Отокумпу Оюй
Publication of EA200802087A1 publication Critical patent/EA200802087A1/ru
Publication of EA014405B1 publication Critical patent/EA014405B1/ru

Links

Classifications

    • 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
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/20—Halides
    • C01F11/22—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • 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
    • C22B7/006—Wet processes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • C02F2101/14—Fluorine or fluorine-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/303—Complexing agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • 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
    • C22B1/02—Roasting processes
    • 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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Treatment Of Sludge (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Изобретение относится к связанному с производством стали способу переработки гидроксидной суспензии, образующейся при нейтрализации отработанных, загрязненных металлом травящих агентов со стадии травления стали, предпочтительно нержавеющей стали, и использования фторида кальция из гидроксидной суспензии для замены природного полевого шпата в качестве флюсующего агента в связи с производством стали. Соответственно, добавление реакционноспособной нейтрализующей среды контролируют рН электроды, работающие в непрерывном режиме, а величину рН устанавливают в диапазоне от 9,0 до 9,5.
EA200802087A 2006-05-10 2007-05-07 Способ производства флюсующего агента, используемого в производстве стали EA014405B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20060460A FI120742B (fi) 2006-05-10 2006-05-10 Menetelmä terästuotannon yhteydessä
PCT/FI2007/000120 WO2007128864A1 (en) 2006-05-10 2007-05-07 Method in connection with steel production

Publications (2)

Publication Number Publication Date
EA200802087A1 true EA200802087A1 (ru) 2009-06-30
EA014405B1 EA014405B1 (ru) 2010-12-30

Family

ID=36539905

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200802087A EA014405B1 (ru) 2006-05-10 2007-05-07 Способ производства флюсующего агента, используемого в производстве стали

Country Status (14)

Country Link
US (1) US8278496B2 (ru)
EP (1) EP2016201B1 (ru)
JP (1) JP5363975B2 (ru)
KR (1) KR101357315B1 (ru)
CN (1) CN101443464B (ru)
BR (1) BRPI0711442B1 (ru)
EA (1) EA014405B1 (ru)
ES (1) ES2527424T3 (ru)
FI (1) FI120742B (ru)
MX (1) MX2008014249A (ru)
SI (1) SI2016201T1 (ru)
TW (1) TWI413694B (ru)
WO (1) WO2007128864A1 (ru)
ZA (1) ZA200809569B (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ305399B6 (cs) * 2014-06-30 2015-09-02 Výzkumný ústav anorganické chemie, a. s. Způsob neutralizace odpadních oplachových vod z moříren nerezových ocelí

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929625A (zh) * 2015-12-29 2017-07-07 林士凯 将钢厂产生的污泥回收再制为钢厂生产辅助原料的方法
KR20190063710A (ko) * 2017-11-30 2019-06-10 주식회사 포스코 첨가제 제조 방법 및 이를 이용한 용선의 정련 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118243A (en) * 1977-09-02 1978-10-03 Waste Management Of Illinois, Inc. Process for disposal of arsenic salts
JPS5779107A (en) * 1980-11-04 1982-05-18 Sumitomo Metal Ind Ltd Method for utilizing sludge for neutralization of waste fluoronitric acid
DE3230603A1 (de) * 1982-08-18 1984-02-23 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur behandlung abgearbeiteter beizpasten
JPS60206487A (ja) * 1984-03-28 1985-10-18 Nippon Stainless Steel Co Ltd ステンレス鋼酸洗廃液の処理方法
JP3549560B2 (ja) * 1993-12-28 2004-08-04 日新製鋼株式会社 酸洗工程の廃液から有価金属とフッ化カルシウムを回収する方法
SE510298C2 (sv) * 1995-11-28 1999-05-10 Eka Chemicals Ab Sätt vid betning av stål
CN1164579A (zh) * 1996-05-05 1997-11-12 大连市金州区环境监测站 钢材硫酸酸洗废液治理的工艺方法
JP2000325969A (ja) * 1999-05-21 2000-11-28 Daido Steel Co Ltd 酸性廃液の中和処理方法及び装置
FI111177B (fi) * 2001-12-12 2003-06-13 Linde Ag Laite ja menetelmä teollisuusprosessin alkaliteetin ja pH-arvon ohjaamiseksi
SE527672C2 (sv) * 2004-04-07 2006-05-09 Outokumpu Stainless Ab Sätt att framställa ett flussmedel, flussmede, samt metod vid tillverkning av stål

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ305399B6 (cs) * 2014-06-30 2015-09-02 Výzkumný ústav anorganické chemie, a. s. Způsob neutralizace odpadních oplachových vod z moříren nerezových ocelí

Also Published As

Publication number Publication date
US20090118565A1 (en) 2009-05-07
EP2016201B1 (en) 2014-10-08
FI120742B (fi) 2010-02-15
SI2016201T1 (sl) 2015-01-30
TWI413694B (zh) 2013-11-01
US8278496B2 (en) 2012-10-02
WO2007128864A1 (en) 2007-11-15
KR101357315B1 (ko) 2014-02-03
TW200804605A (en) 2008-01-16
ZA200809569B (en) 2010-03-31
BRPI0711442A2 (pt) 2011-11-01
KR20090031504A (ko) 2009-03-26
ES2527424T3 (es) 2015-01-23
CN101443464A (zh) 2009-05-27
JP2009536264A (ja) 2009-10-08
MX2008014249A (es) 2008-11-18
FI20060460A0 (fi) 2006-05-10
CN101443464B (zh) 2012-02-22
EA014405B1 (ru) 2010-12-30
JP5363975B2 (ja) 2013-12-11
FI20060460A (fi) 2007-11-11
EP2016201A1 (en) 2009-01-21
EP2016201A4 (en) 2011-12-28
BRPI0711442B1 (pt) 2015-08-04

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Legal Events

Date Code Title Description
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 MD TJ TM