BR8900022A - Processo para dessulfurizacao de ferrocromo - Google Patents

Processo para dessulfurizacao de ferrocromo

Info

Publication number
BR8900022A
BR8900022A BR898900022A BR8900022A BR8900022A BR 8900022 A BR8900022 A BR 8900022A BR 898900022 A BR898900022 A BR 898900022A BR 8900022 A BR8900022 A BR 8900022A BR 8900022 A BR8900022 A BR 8900022A
Authority
BR
Brazil
Prior art keywords
ferrochromo
desulfurization process
desulfurization
ferrochromo desulfurization
Prior art date
Application number
BR898900022A
Other languages
English (en)
Portuguese (pt)
Inventor
Donovan De Lacy Slatter
Original Assignee
Middelburg Steel & Alloys Pty
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 Middelburg Steel & Alloys Pty filed Critical Middelburg Steel & Alloys Pty
Publication of BR8900022A publication Critical patent/BR8900022A/pt

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Silicon Compounds (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture Of Iron (AREA)
BR898900022A 1988-01-05 1989-01-04 Processo para dessulfurizacao de ferrocromo BR8900022A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA878300 1988-01-05

Publications (1)

Publication Number Publication Date
BR8900022A true BR8900022A (pt) 1989-08-15

Family

ID=25579050

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898900022A BR8900022A (pt) 1988-01-05 1989-01-04 Processo para dessulfurizacao de ferrocromo

Country Status (10)

Country Link
US (1) US4971622A (US08197722-20120612-C00042.png)
JP (1) JPH01215950A (US08197722-20120612-C00042.png)
BR (1) BR8900022A (US08197722-20120612-C00042.png)
FI (1) FI93745C (US08197722-20120612-C00042.png)
GR (1) GR1000523B (US08197722-20120612-C00042.png)
IT (1) IT1230456B (US08197722-20120612-C00042.png)
PH (1) PH26423A (US08197722-20120612-C00042.png)
SE (1) SE466315B (US08197722-20120612-C00042.png)
TR (1) TR27725A (US08197722-20120612-C00042.png)
ZW (1) ZW18288A1 (US08197722-20120612-C00042.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5567224A (en) * 1995-06-06 1996-10-22 Armco Inc. Method of reducing metal oxide in a rotary hearth furnace heated by an oxidizing flame
US5575829A (en) * 1995-06-06 1996-11-19 Armco Inc. Direct use of sulfur-bearing nickel concentrate in making Ni alloyed stainless steel
AUPN461695A0 (en) * 1995-08-07 1995-08-31 Technological Resources Pty Limited A process for reducing iron oxides
BR112015028930A2 (pt) * 2013-06-03 2017-07-25 Midrex Technologies Inc método para produzir um produto cromo em fusão com alto teor de carbono e alta pureza
BR112021024024A2 (pt) * 2019-07-12 2022-02-01 Jfe Mat Co Ltd Métodos para desintoxicar escória e para produzir ferrocromo de baixo teor de carbono
WO2021010311A1 (ja) * 2019-07-12 2021-01-21 Ｊｆｅマテリアル株式会社 低炭素フェロクロムの製造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2098176A (en) * 1934-03-19 1937-11-02 Marvin J Udy Manufacture of chrome ore preparations
US3865574A (en) * 1972-07-20 1975-02-11 Lummus Co Process for the production of low-sulfur prereduced iron pellets
JPS5019486A (US08197722-20120612-C00042.png) * 1973-06-01 1975-02-28
JPS5770219A (en) * 1980-10-21 1982-04-30 Nisshin Steel Co Ltd Method for dephosphorizing, desulfurizing and denitrifying iron alloy
JPS58151416A (ja) * 1982-03-03 1983-09-08 Sumitomo Metal Ind Ltd クロムを含む溶融鉄合金の脱燐・脱硫方法
JPS5985841A (ja) * 1982-11-09 1984-05-17 Nippon Kokan Kk <Nkk> フエロクロムの製造方法
JPS60121211A (ja) * 1983-12-02 1985-06-28 Nippon Steel Corp 含クロム溶鋼の還元脱硫法
PH22151A (en) * 1983-12-31 1988-06-01 Krupp Gmbh Process for the production of ferrochromium
DE3347686C1 (de) * 1983-12-31 1985-04-18 Fried. Krupp Gmbh, 4300 Essen Verfahren zur Herstellung von Ferrochrom
DE3442245A1 (de) * 1984-11-19 1986-05-28 Japan Metals & Chemicals Co., Ltd., Tokio/Tokyo Verfahren zur herstellung einer legierung mit hohem chromgehalt durch schmelzreduktion
US4783219A (en) * 1985-11-13 1988-11-08 Nippon Kokan Kabushiki Kaisha Method for melting and reducing chrome ore
US4790872A (en) * 1988-01-19 1988-12-13 Hamilton Specialty Bar Division Of Slater Industries, Inc. Additive for promoting slag formation in steel refining ladle

Also Published As

Publication number Publication date
TR27725A (tr) 1995-06-22
IT1230456B (it) 1991-10-23
FI890003A0 (fi) 1989-01-02
US4971622A (en) 1990-11-20
SE8804710L (sv) 1989-07-06
SE8804710D0 (sv) 1988-12-30
FI890003A (fi) 1989-07-06
FI93745C (fi) 1995-05-26
JPH01215950A (ja) 1989-08-29
SE466315B (sv) 1992-01-27
FI93745B (fi) 1995-02-15
PH26423A (en) 1992-07-15
GR1000523B (el) 1992-08-25
IT8947503A0 (it) 1989-01-04
ZW18288A1 (en) 1989-04-19
JPH0563541B2 (US08197722-20120612-C00042.png) 1993-09-10

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
KD1 Payment of complementary fee requested
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 04/01/2009