ES2150730T3 - Fusion de laterita de niquel y concentrado de niquel que lleva azufre para la fabricacion de hierro aleado con niquel y de acero inoxidable. - Google Patents
Fusion de laterita de niquel y concentrado de niquel que lleva azufre para la fabricacion de hierro aleado con niquel y de acero inoxidable.Info
- Publication number
- ES2150730T3 ES2150730T3 ES97119622T ES97119622T ES2150730T3 ES 2150730 T3 ES2150730 T3 ES 2150730T3 ES 97119622 T ES97119622 T ES 97119622T ES 97119622 T ES97119622 T ES 97119622T ES 2150730 T3 ES2150730 T3 ES 2150730T3
- Authority
- ES
- Spain
- Prior art keywords
- nickel
- fusion
- manufacture
- stainless steel
- laterite
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- C21C7/0006—Adding metallic additives
-
- 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
- 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
-
- 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)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
UN PROCESO DE MULTIPLES ETAPAS PARA LA OBTENCION DE UNIDADES DE NI A PARTIR DE MINERALES DE LATERITA DE NIQUEL Y CONCENTRADOS DE NI QUE CONTIENEN AZUFRE DURANTE LA PRODUCCION DE HIERRO ALEADO CON NIQUEL O DE ACERO INOXIDABLE ALEADO CON NIQUEL EN UN REACTOR EQUIPADO CON UN ELEMENTO DE SOPLADURA SUPERIOR E INFERIOR. EL MINERAL DE LATERITA DE NI DESHIDRATADO SE CARGA EN UNA MEZCLA DE UN BAÑO DE HIERRO/ESCORIAS QUE CONTIENE CARBONO DISUELTO UN AGENTE REDUCTOR METALOIDE TAL COMO ALUMINIO O SILICIO. EL MINERAL DE LATERITA SE FUNDE MIENTRAS QUE SE GENERA CALOR POR LA OXIDACION DEL METALOIDE Y EL CARBONO EN EL REACTOR. TRAS LA FUSION DEL MINERAL DE LATERITA, SE DETIENEN LA SOPLADURA DESDE ARRIBA DE OXIGENO PURO Y LA SOPLADURA DESDE ABAJO DE UN GAS QUE CONTIENE OXIGENO. COMIENZA LA INYECCION INFERIOR DE UN GAS DE AGITACION INERTE. SE A\ADE AL BAÑO UN CONCENTRADO DE NI QUE CONTIENE AZUFRE Y ALUMINIO. EL AZUFRE DEL CONCENTRADO DE NI QUE CONTIENE AZUFRE SE TRANSFIERE Y RETIENE DENTRO DE LA ESCORIA PRODUCIDA A PARTIR DEL MINERAL DE LATERITA A BASE DE LA COMPOSICION DE LAS ESCORIAS Y LA TEMPERATURA, EL GRADO DE MEZCLADO DE LA MEZCLA DEL BAÑO DE HIERRO/ESCORIAS CON EL GAS INERTE Y LA CONCENTRACION DE CARBONO/METALOIDE EN LA MEZCLA DEL BAÑO. A CONTINUACION SE DESCARGAN LAS ESCORIAS QUE CONTIENEN AZUFRE DEL REACTOR Y LA MEZCLA DEL BAÑO DE HIERRO SE DESCARBURIZA Y REFINA SEGUN LA ESPECIFICACION DE LA ALEACION. EL ALCANCE DE LA DESULFURACION POR PARTE DE LAS ESCORIAS DETERMINA LA CANTIDAD DE CONCENTRADO DE NI QUE CONTIENE AZUFRE QUE SE PUEDE A\ADIR AL BAÑO PARA UN PESO DE ESCORIAS DADO. EL PESO TOTAL DE LAS ESCORIAS DURANTE TODO EL PROCESO DEBERIA DE SER DE 200 A 300 KG DE ESCORIAS /MEZCLA DEL BAÑO MT, DEBERIENDOSE MANTENER LA TEMPERATURA DEL BAÑO ENTRE 1500 Y 1700 (GRADOS) C, Y CONTROLAR LA BASICIDAD DE LAS ESCORIAS ENTRE 1 Y 3 Y LAS COMPOSICIONES DE AL{SUB,2}O{SUB,3} Y MGO DE LAS ESCORIAS SE DEBERIA MANTENER ENTRE UN 10 Y UN 25 % EN PESO Y ENTRE UN 10 Y UN 20 % EN PESO RESPECTIVAMENTE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/760,363 US5749939A (en) | 1996-12-04 | 1996-12-04 | Melting of NI laterite in making NI alloyed iron or steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2150730T3 true ES2150730T3 (es) | 2000-12-01 |
Family
ID=25058877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES97119622T Expired - Lifetime ES2150730T3 (es) | 1996-12-04 | 1997-11-10 | Fusion de laterita de niquel y concentrado de niquel que lleva azufre para la fabricacion de hierro aleado con niquel y de acero inoxidable. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5749939A (es) |
| EP (1) | EP0846778B1 (es) |
| JP (1) | JPH10158712A (es) |
| KR (1) | KR19980063738A (es) |
| CN (1) | CN1190133A (es) |
| AT (1) | ATE196170T1 (es) |
| AU (1) | AU717368B2 (es) |
| CA (1) | CA2221644A1 (es) |
| DE (1) | DE69703020T2 (es) |
| ES (1) | ES2150730T3 (es) |
| ZA (1) | ZA9710138B (es) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6245289B1 (en) | 1996-04-24 | 2001-06-12 | J & L Fiber Services, Inc. | Stainless steel alloy for pulp refiner plate |
| WO2001046482A1 (en) * | 1999-12-22 | 2001-06-28 | Mintek | Iron-nickel alloy production |
| JP4167101B2 (ja) * | 2003-03-20 | 2008-10-15 | 株式会社神戸製鋼所 | 粒状金属鉄の製法 |
| US7056400B1 (en) * | 2003-04-22 | 2006-06-06 | R. J. Lee Group, Inc. | Method of separating superalloy metal powder from admixed contaminants |
| US7153377B2 (en) * | 2004-02-02 | 2006-12-26 | R. J. Lee Group, Inc. | Method of separating admixed contaminants from superalloy metal powder |
| CN100560767C (zh) * | 2007-03-27 | 2009-11-18 | 宝山钢铁股份有限公司 | 一种电弧炉冶炼不锈钢实现镍直接合金化的方法 |
| DE102007015585A1 (de) * | 2007-03-29 | 2008-10-02 | M.K.N. Technologies Gmbh | Schmelzmetallurgisches Verfahren zur Herstellung von Metallschmelzen und übergangsmetallhaltiger Zuschlagstoff zur Verwendung in diesen |
| CN100478477C (zh) * | 2007-07-09 | 2009-04-15 | 贵研铂业股份有限公司 | 一种从红土矿中提取镍铁合金的方法 |
| FI123241B (fi) * | 2011-06-13 | 2013-01-15 | Outokumpu Oy | Menetelmä pelkistymisasteen parantamiseksi ferroseosta sulatettaessa |
| CN102719582B (zh) * | 2012-07-03 | 2014-10-29 | 刘光火 | 一种冶炼低品位复合矿的工艺 |
| DE102014011231A1 (de) * | 2014-07-23 | 2016-01-28 | Sms Group Gmbh | Verfahren zur Nickel Pig Iron (NPI)- Entkohlung im AOD -Konverter |
| KR102566654B1 (ko) * | 2017-10-27 | 2023-08-11 | 유미코아 | 코발트 함유 재료로부터 금속을 회수하는 방법 |
| KR102408309B1 (ko) * | 2019-12-20 | 2022-06-14 | 주식회사 포스코 | 저품위 니켈 철 합금으로부터 니켈 매트를 제조하는 방법 |
| CN111635997B (zh) * | 2020-06-12 | 2021-08-03 | 中南大学 | 氢气直接还原熔炼红土镍矿冶炼镍铁合金的方法 |
| CN113249540B (zh) * | 2021-05-14 | 2022-08-23 | 山西太钢不锈钢股份有限公司 | 使用aod炉以氢氧化镍为原料冶炼镍系不锈钢的生产方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1463020A (fr) * | 1965-08-25 | 1966-06-03 | Procédé pour l'élaboration d'alliage de ferro-nickel par fusion simultanée de minerai de fer nickélifère avec un taux élevé de récupération de nickel | |
| JPS5335892B2 (es) * | 1972-05-29 | 1978-09-29 | ||
| US4001012A (en) * | 1973-11-28 | 1977-01-04 | United States Steel Corporation | Method of producing stainless steel |
| JPH02221336A (ja) * | 1989-02-21 | 1990-09-04 | Nkk Corp | Ｎｉ鉱石の溶融還元法 |
| US5039480A (en) * | 1989-02-21 | 1991-08-13 | Nkk Corporation | Method for manufacturing molten metal containing Ni and Cr |
| JPH0791600B2 (ja) * | 1989-03-09 | 1995-10-04 | 日本鋼管株式会社 | Ｎｉ鉱石の溶融還元法 |
| ZA935789B (en) * | 1992-08-11 | 1994-03-03 | Mintek | The production of stainless steel. |
| US5575829A (en) * | 1995-06-06 | 1996-11-19 | Armco Inc. | Direct use of sulfur-bearing nickel concentrate in making Ni alloyed stainless steel |
-
1996
- 1996-12-04 US US08/760,363 patent/US5749939A/en not_active Expired - Fee Related
-
1997
- 1997-11-10 EP EP97119622A patent/EP0846778B1/en not_active Expired - Lifetime
- 1997-11-10 DE DE69703020T patent/DE69703020T2/de not_active Expired - Fee Related
- 1997-11-10 AT AT97119622T patent/ATE196170T1/de not_active IP Right Cessation
- 1997-11-10 ES ES97119622T patent/ES2150730T3/es not_active Expired - Lifetime
- 1997-11-11 ZA ZA9710138A patent/ZA9710138B/xx unknown
- 1997-11-19 CA CA002221644A patent/CA2221644A1/en not_active Abandoned
- 1997-12-02 JP JP9331934A patent/JPH10158712A/ja active Pending
- 1997-12-03 AU AU46844/97A patent/AU717368B2/en not_active Ceased
- 1997-12-03 KR KR1019970065545A patent/KR19980063738A/ko not_active Application Discontinuation
- 1997-12-04 CN CN97125363A patent/CN1190133A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69703020D1 (de) | 2000-10-12 |
| DE69703020T2 (de) | 2001-01-11 |
| EP0846778B1 (en) | 2000-09-06 |
| AU717368B2 (en) | 2000-03-23 |
| JPH10158712A (ja) | 1998-06-16 |
| EP0846778A1 (en) | 1998-06-10 |
| ATE196170T1 (de) | 2000-09-15 |
| CA2221644A1 (en) | 1998-06-04 |
| AU4684497A (en) | 1998-06-11 |
| ZA9710138B (en) | 1998-06-08 |
| CN1190133A (zh) | 1998-08-12 |
| MX9709082A (es) | 1998-06-30 |
| US5749939A (en) | 1998-05-12 |
| KR19980063738A (ko) | 1998-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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