BR9606660A - Processo para fusão redutora de minério de cromo - Google Patents

Processo para fusão redutora de minério de cromo

Info

Publication number
BR9606660A
BR9606660A BR9606660A BR9606660A BR9606660A BR 9606660 A BR9606660 A BR 9606660A BR 9606660 A BR9606660 A BR 9606660A BR 9606660 A BR9606660 A BR 9606660A BR 9606660 A BR9606660 A BR 9606660A
Authority
BR
Brazil
Prior art keywords
chrome ore
reducing melting
melting
reducing
chrome
Prior art date
Application number
BR9606660A
Other languages
English (en)
Inventor
Kimiharu Aida
Shuji Takeuchi
Nagayasu Bessho
Tomomichi Terabatake
Yasuo Kishimoto
Horishi Nishikawa
Fumio Sudo
Original Assignee
Kawasaki Steel Corparation
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
Priority claimed from JP25082695A external-priority patent/JPH0987716A/ja
Application filed by Kawasaki Steel Corparation filed Critical Kawasaki Steel Corparation
Publication of BR9606660A publication Critical patent/BR9606660A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • 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
    • 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
BR9606660A 1995-09-28 1996-09-27 Processo para fusão redutora de minério de cromo BR9606660A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP25082695A JPH0987716A (ja) 1995-09-28 1995-09-28 クロム鉱石の溶融還元方法
JP32452295 1995-12-13
PCT/JP1996/002813 WO1997012066A1 (fr) 1995-09-28 1996-09-27 Procede de reduction par fusion de minerai de chrome

Publications (1)

Publication Number Publication Date
BR9606660A true BR9606660A (pt) 1997-09-30

Family

ID=26539937

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9606660A BR9606660A (pt) 1995-09-28 1996-09-27 Processo para fusão redutora de minério de cromo

Country Status (8)

Country Link
US (1) US5882377A (pt)
EP (1) EP0799899B1 (pt)
KR (1) KR100257213B1 (pt)
CN (1) CN1042444C (pt)
AU (1) AU685713B2 (pt)
BR (1) BR9606660A (pt)
DE (1) DE69622529T2 (pt)
WO (1) WO1997012066A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407263B (de) * 1999-04-22 2001-02-26 Holderbank Financ Glarus Verfahren zum aufarbeiten von stahlschlacken
JP4307849B2 (ja) * 2003-01-07 2009-08-05 株式会社神戸製鋼所 クロム含有原料の還元方法
US7651559B2 (en) * 2005-11-04 2010-01-26 Franklin Industrial Minerals Mineral composition
CN105483316B (zh) * 2016-01-19 2017-08-25 攀钢集团攀枝花钢铁研究院有限公司 转炉炉内铬矿直接合金化的方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383199A (en) * 1967-08-23 1968-05-14 Allied Chem Processing of iron oxide values
JPS5211906B2 (pt) * 1973-10-17 1977-04-02
JPS5344129B2 (pt) * 1973-11-21 1978-11-27
JPS5130504A (pt) * 1974-09-09 1976-03-15 Showa Denko Kk
JPS6031834A (ja) * 1983-08-03 1985-02-18 株式会社日立製作所 石炭の軟化方法
JPS6167708A (ja) * 1984-09-10 1986-04-07 Nippon Steel Corp 鉄合金の精錬方法
US4565574A (en) * 1984-11-19 1986-01-21 Nippon Steel Corporation Process for production of high-chromium alloy by smelting reduction
JPS61166910A (ja) * 1985-01-18 1986-07-28 Nippon Steel Corp クロム含有合金の製造方法
JPS62224619A (ja) * 1986-03-25 1987-10-02 Nippon Steel Corp 溶融還元炉への炭材供給方法
US4765828A (en) * 1987-06-19 1988-08-23 Minnesota Power & Light Company Method and apparatus for reduction of metal oxides
ATE107710T1 (de) * 1987-08-13 1994-07-15 Nippon Kokan Kk Ofen und verfahren zur reduktion eines chromvorproduktes durch schmelzen.
JPH01162714A (ja) * 1987-12-18 1989-06-27 Kawasaki Steel Corp 転炉
JPH03271310A (ja) * 1990-03-20 1991-12-03 Nippon Steel Corp クロム鉱石の溶融還元法
US5262367A (en) * 1992-11-25 1993-11-16 Indresco Inc. MgO-C brick containing a novel graphite
JPH07216425A (ja) * 1994-02-03 1995-08-15 Nippon Steel Corp 溶融鉄合金の製造方法
JPH0916425A (ja) * 1995-06-30 1997-01-17 Fujitsu Ltd 情報処理システム

Also Published As

Publication number Publication date
DE69622529D1 (de) 2002-08-29
KR100257213B1 (ko) 2000-05-15
KR970707311A (ko) 1997-12-01
EP0799899B1 (en) 2002-07-24
AU7096596A (en) 1997-04-17
US5882377A (en) 1999-03-16
CN1042444C (zh) 1999-03-10
CN1165540A (zh) 1997-11-19
DE69622529T2 (de) 2002-11-07
AU685713B2 (en) 1998-01-22
EP0799899A4 (en) 1997-12-03
WO1997012066A1 (fr) 1997-04-03
EP0799899A1 (en) 1997-10-08

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 15A, 16A, 17A, 18A E 19A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2342 DE 24-11-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.