BRPI0511154A - método para redução de cr em escórias metalúrgicas contendo cr - Google Patents
método para redução de cr em escórias metalúrgicas contendo crInfo
- Publication number
- BRPI0511154A BRPI0511154A BRPI0511154-4A BRPI0511154A BRPI0511154A BR PI0511154 A BRPI0511154 A BR PI0511154A BR PI0511154 A BRPI0511154 A BR PI0511154A BR PI0511154 A BRPI0511154 A BR PI0511154A
- Authority
- BR
- Brazil
- Prior art keywords
- content
- weight
- melt
- slag
- iron bath
- Prior art date
Links
- 239000002893 slag Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 10
- 239000011651 chromium Substances 0.000 abstract 7
- 229910052742 iron Inorganic materials 0.000 abstract 5
- 239000007788 liquid Substances 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
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
-
- 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
- C21C5/36—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
- C21C7/0025—Adding carbon material
-
- 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
- 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
- C21C5/527—Charging of the electric furnace
- C21C2005/5276—Charging of the electric furnace with liquid or solid rest, e.g. pool, "sumpf"
-
- 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)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
MéTODO PARA REDUçãO DE Cr EM ESCóRIAS METALúRGICAS CONTENDO Cr. Um método para redução do teor de cromo de uma escória metalúrgica, no qual a escória é carregada em um banho de ferro no estado líquido e a redução de Cr é efetuada pelo banho de ferro tendo um teor de C de 2 a 4% em peso, onde a) a escória contendo Cr tendo um teor de Cr de 2 a 20% em peso é carregada em um banho de ferro tendo um teor de C abaixo de 1 % em peso, e portanto b) o teor de carbono do banho de ferro é aumentado até cerca de 2 a 4% em peso pela adição de transportadores de carbono no fornecimento simultâneo de energia, c) a escória líquida tendo um teor de Cr de cerca de 0,1% em peso é escoada após a redução do Cr, d) um agente de resfriamento, preferivelmente sucata, é adicionado ao fundido de ferro e o teor de C no fundido é reduzido para abaixo de 1% em peso, e e) uma porção de fundido contendo Cr é escoada no estado líquido, enquanto a porção remanescente é deixada no conversor no estado líquido para o tratamento do fundido subseqüente.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT3672004 | 2004-05-18 | ||
| ATGM367/2004 | 2004-05-18 | ||
| PCT/IB2005/001342 WO2005113840A1 (de) | 2004-05-18 | 2005-05-18 | Verfahren zur reduktion von cr aus cr-haltigen metallurgischen schlacken |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0511154A true BRPI0511154A (pt) | 2007-12-04 |
| BRPI0511154B1 BRPI0511154B1 (pt) | 2014-02-18 |
Family
ID=34967951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0511154-4B1A BRPI0511154B1 (pt) | 2004-05-18 | 2005-05-18 | MÉTODO PARA REDUÇÃO DE Cr EM ESCÓRIAS METALÚRGICAS CONTENDO Cr |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US7641713B2 (pt) |
| EP (1) | EP1747297B1 (pt) |
| JP (1) | JP4829225B2 (pt) |
| CN (1) | CN1954086A (pt) |
| AT (1) | ATE378429T1 (pt) |
| AU (1) | AU2005245678B2 (pt) |
| BR (1) | BRPI0511154B1 (pt) |
| CA (1) | CA2563338A1 (pt) |
| DE (1) | DE502005001988D1 (pt) |
| ES (1) | ES2297704T3 (pt) |
| MX (1) | MXPA06012456A (pt) |
| PL (1) | PL1747297T3 (pt) |
| PT (1) | PT1747297E (pt) |
| RU (1) | RU2360008C2 (pt) |
| TW (1) | TWI300444B (pt) |
| WO (1) | WO2005113840A1 (pt) |
| ZA (1) | ZA200608814B (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121802B (zh) * | 2011-11-18 | 2014-11-05 | 中国科学院过程工程研究所 | 一种利用亚熔盐工艺产出铬渣制备氯氧镁水泥的方法 |
| CN103602781B (zh) * | 2013-11-17 | 2015-03-25 | 山西太钢不锈钢股份有限公司 | 一种降低不锈钢冶炼过程电弧炉渣中氧化铬的方法 |
| JP6451462B2 (ja) * | 2015-04-01 | 2019-01-16 | 新日鐵住金株式会社 | クロム含有スラグからのクロム回収方法 |
| CN105483312B (zh) * | 2016-01-15 | 2017-12-01 | 山西太钢不锈钢股份有限公司 | 一种不锈钢不还原留渣的方法 |
| AT523447B1 (de) * | 2020-02-02 | 2021-08-15 | Alfred Edlinger Dipl Ing | Verfahren zum Abtrennen von Phosphor und/oder Phosphorverbindungen aus eisen(oxid)haltigen Phosphor- und/oder Phosphatträgern |
| WO2021152386A1 (de) | 2020-02-02 | 2021-08-05 | Radmat Ag | Verfahren zum abtrennen von phosphor und/oder phosphorverbindungen aus eisen(oxid)haltigen phosphor- und/oder phosphatträgern |
| CN112813221B (zh) * | 2020-12-30 | 2023-02-03 | 河钢股份有限公司承德分公司 | 一种高硅含钒铁水转炉提钒的方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166910A (ja) * | 1985-01-18 | 1986-07-28 | Nippon Steel Corp | クロム含有合金の製造方法 |
| JP2964861B2 (ja) * | 1993-06-17 | 1999-10-18 | 住友金属工業株式会社 | ステンレス鋼の製造方法 |
| KR0179394B1 (ko) * | 1994-06-06 | 1999-02-18 | 도자끼 시노부 | 함Cr용강의 탈탄 정련방법 |
| 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 |
| HRP970303B1 (en) * | 1996-06-05 | 2002-06-30 | Holderbank Financ Glarus | Method for making pozzolans, synthetic blast-furnance slag, belite or alite clinkers, and pig-iron alloys, from oxidic slag and a device for implementing this method |
| BR9806267A (pt) * | 1997-09-15 | 2000-04-04 | Holderbank Financ Glarus | Processo para o tratamento de escórias de aço e substratos de ferro para obtenção de ferro bruto e de escórias compatìveis com o meio ambiente |
| JP2000319047A (ja) * | 1999-03-10 | 2000-11-21 | Kawasaki Steel Corp | ステンレス鋼精錬スラグの改質処理方法 |
| AT407263B (de) * | 1999-04-22 | 2001-02-26 | Holderbank Financ Glarus | Verfahren zum aufarbeiten von stahlschlacken |
| KR20020014821A (ko) * | 1999-06-23 | 2002-02-25 | 추후제출 | 산화 크롬 함유 슬래그로부터의 크롬 금속 재생 방법 |
| PT1252347E (pt) * | 2000-01-28 | 2004-01-30 | Holcim Ltd | Processo para a remocao do cromio e/ou do niquel de escorias liquidas |
| PL194977B1 (pl) * | 2000-01-28 | 2007-07-31 | Holcim Ltd | Sposób obróbki żużli lub mieszanin żużlowych |
| 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 |
-
2005
- 2005-05-18 DE DE200550001988 patent/DE502005001988D1/de not_active Expired - Lifetime
- 2005-05-18 MX MXPA06012456A patent/MXPA06012456A/es active IP Right Grant
- 2005-05-18 US US11/579,102 patent/US7641713B2/en not_active Expired - Fee Related
- 2005-05-18 PT PT05738346T patent/PT1747297E/pt unknown
- 2005-05-18 TW TW94116040A patent/TWI300444B/zh not_active IP Right Cessation
- 2005-05-18 AU AU2005245678A patent/AU2005245678B2/en not_active Ceased
- 2005-05-18 RU RU2006144836A patent/RU2360008C2/ru active
- 2005-05-18 WO PCT/IB2005/001342 patent/WO2005113840A1/de not_active Ceased
- 2005-05-18 ES ES05738346T patent/ES2297704T3/es not_active Expired - Lifetime
- 2005-05-18 CA CA 2563338 patent/CA2563338A1/en not_active Abandoned
- 2005-05-18 EP EP20050738346 patent/EP1747297B1/de not_active Expired - Lifetime
- 2005-05-18 PL PL05738346T patent/PL1747297T3/pl unknown
- 2005-05-18 CN CNA2005800158175A patent/CN1954086A/zh active Pending
- 2005-05-18 AT AT05738346T patent/ATE378429T1/de not_active IP Right Cessation
- 2005-05-18 BR BRPI0511154-4B1A patent/BRPI0511154B1/pt not_active IP Right Cessation
- 2005-05-18 JP JP2007517483A patent/JP4829225B2/ja not_active Expired - Fee Related
-
2006
- 2006-10-23 ZA ZA200608814A patent/ZA200608814B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1747297B1 (de) | 2007-11-14 |
| RU2006144836A (ru) | 2008-07-10 |
| ZA200608814B (en) | 2008-05-28 |
| ATE378429T1 (de) | 2007-11-15 |
| JP4829225B2 (ja) | 2011-12-07 |
| US20070227307A1 (en) | 2007-10-04 |
| ES2297704T3 (es) | 2008-05-01 |
| CA2563338A1 (en) | 2005-12-01 |
| US7641713B2 (en) | 2010-01-05 |
| MXPA06012456A (es) | 2007-03-30 |
| TW200540279A (en) | 2005-12-16 |
| CN1954086A (zh) | 2007-04-25 |
| PL1747297T3 (pl) | 2008-04-30 |
| JP2007538156A (ja) | 2007-12-27 |
| AU2005245678B2 (en) | 2010-09-30 |
| AU2005245678A1 (en) | 2005-12-01 |
| DE502005001988D1 (de) | 2007-12-27 |
| RU2360008C2 (ru) | 2009-06-27 |
| WO2005113840A1 (de) | 2005-12-01 |
| PT1747297E (pt) | 2008-02-13 |
| EP1747297A1 (de) | 2007-01-31 |
| TWI300444B (en) | 2008-09-01 |
| BRPI0511154B1 (pt) | 2014-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B25A | Requested transfer of rights approved |
Owner name: HOLCIM TECHNOLOGY LTD. (CH) Free format text: TRANSFERIDO DE: HOLCIM LTD. |
|
| B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/05/2005, OBSERVADAS AS CONDICOES LEGAIS. |
|
| B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 15A ANUIDADE. |
|
| B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: REFERENTE AO DESPACHO 21.6 PUBLICADO NA RPI 2567 DE 2020-03-17 |