FI890003A0 - Menetelmä rikki- ja piipitoisuuden kontrolloimiseksi ferrokromin valmistuksessa - Google Patents
Menetelmä rikki- ja piipitoisuuden kontrolloimiseksi ferrokromin valmistuksessaInfo
- Publication number
- FI890003A0 FI890003A0 FI890003A FI890003A FI890003A0 FI 890003 A0 FI890003 A0 FI 890003A0 FI 890003 A FI890003 A FI 890003A FI 890003 A FI890003 A FI 890003A FI 890003 A0 FI890003 A0 FI 890003A0
- Authority
- FI
- Finland
- Prior art keywords
- ferrochrome
- production
- silicon content
- controlling sulfur
- sulfur
- Prior art date
Links
- 229910000604 Ferrochrome Inorganic materials 0.000 title 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title 1
- 229910052710 silicon Inorganic materials 0.000 title 1
- 239000010703 silicon Substances 0.000 title 1
- 229910052717 sulfur Inorganic materials 0.000 title 1
- 239000011593 sulfur Substances 0.000 title 1
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA878300 | 1988-01-05 | ||
| ZA8708300 | 1988-01-05 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI890003A0 true FI890003A0 (fi) | 1989-01-02 |
| FI890003L FI890003L (fi) | 1989-07-06 |
| FI93745B FI93745B (fi) | 1995-02-15 |
| FI93745C FI93745C (fi) | 1995-05-26 |
Family
ID=25579050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI890003A FI93745C (fi) | 1988-01-05 | 1989-01-02 | Menetelmä rikki- ja piipitoisuuden kontrolloimiseksi ferrokromin valmistuksessa |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4971622A (fi) |
| JP (1) | JPH01215950A (fi) |
| BR (1) | BR8900022A (fi) |
| FI (1) | FI93745C (fi) |
| GR (1) | GR1000523B (fi) |
| IT (1) | IT1230456B (fi) |
| PH (1) | PH26423A (fi) |
| SE (1) | SE466315B (fi) |
| TR (1) | TR27725A (fi) |
| ZW (1) | ZW18288A1 (fi) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5575829A (en) * | 1995-06-06 | 1996-11-19 | Armco Inc. | Direct use of sulfur-bearing nickel concentrate in making Ni alloyed stainless steel |
| 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 |
| AUPN461695A0 (en) * | 1995-08-07 | 1995-08-31 | Technological Resources Pty Limited | A process for reducing iron oxides |
| WO2014197315A1 (en) * | 2013-06-03 | 2014-12-11 | Midrex Technologies, Inc. | Methods and systems for producing ferro-chrome in a duplex furnace |
| JP7035280B2 (ja) * | 2019-07-12 | 2022-03-14 | Ｊｆｅマテリアル株式会社 | 低炭素フェロクロムの製造方法 |
| WO2021010312A1 (ja) * | 2019-07-12 | 2021-01-21 | Ｊｆｅマテリアル株式会社 | スラグの無害化方法及び低炭素フェロクロムの製造方法 |
Family Cites Families (12)
| 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 (fi) * | 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 |
| DE3347686C1 (de) * | 1983-12-31 | 1985-04-18 | Fried. Krupp Gmbh, 4300 Essen | Verfahren zur Herstellung von Ferrochrom |
| PH22151A (en) * | 1983-12-31 | 1988-06-01 | Krupp Gmbh | Process for the production of ferrochromium |
| 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 |
-
1988
- 1988-12-30 ZW ZW182/88A patent/ZW18288A1/xx unknown
- 1988-12-30 SE SE8804710A patent/SE466315B/sv not_active IP Right Cessation
-
1989
- 1989-01-02 FI FI890003A patent/FI93745C/fi not_active IP Right Cessation
- 1989-01-04 GR GR890100004A patent/GR1000523B/el not_active IP Right Cessation
- 1989-01-04 PH PH38001A patent/PH26423A/en unknown
- 1989-01-04 BR BR898900022A patent/BR8900022A/pt not_active IP Right Cessation
- 1989-01-04 IT IT8947503A patent/IT1230456B/it active
- 1989-01-04 US US07/293,368 patent/US4971622A/en not_active Expired - Fee Related
- 1989-01-05 TR TR00034/89A patent/TR27725A/xx unknown
- 1989-01-05 JP JP64000816A patent/JPH01215950A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE8804710L (sv) | 1989-07-06 |
| SE8804710D0 (sv) | 1988-12-30 |
| SE466315B (sv) | 1992-01-27 |
| BR8900022A (pt) | 1989-08-15 |
| IT8947503A0 (it) | 1989-01-04 |
| ZW18288A1 (en) | 1989-04-19 |
| FI890003L (fi) | 1989-07-06 |
| FI93745C (fi) | 1995-05-26 |
| PH26423A (en) | 1992-07-15 |
| IT1230456B (it) | 1991-10-23 |
| US4971622A (en) | 1990-11-20 |
| FI93745B (fi) | 1995-02-15 |
| GR1000523B (el) | 1992-08-25 |
| JPH01215950A (ja) | 1989-08-29 |
| TR27725A (tr) | 1995-06-22 |
| JPH0563541B2 (fi) | 1993-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| MM | Patent lapsed |
Owner name: MIDDELBURG STEEL AND ALLOYS |