FI70258C - Foerfarande foer raffinering av ferrokrommetall - Google Patents
Foerfarande foer raffinering av ferrokrommetall Download PDFInfo
- Publication number
- FI70258C FI70258C FI823522A FI823522A FI70258C FI 70258 C FI70258 C FI 70258C FI 823522 A FI823522 A FI 823522A FI 823522 A FI823522 A FI 823522A FI 70258 C FI70258 C FI 70258C
- Authority
- FI
- Finland
- Prior art keywords
- metal
- ferrochrome
- oxide
- process according
- silicon
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
- C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys
-
- 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
- C21C5/5264—Manufacture of alloyed steels including ferro-alloys
-
- 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
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/22—Remelting metals with heating by wave energy or particle radiation
- C22B9/226—Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
-
- 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
- C21C5/5205—Manufacture of steel in electric furnaces in a plasma heated furnace
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Silicon Compounds (AREA)
- Manufacture Of Iron (AREA)
- Compounds Of Iron (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA817209 | 1981-10-19 | ||
| ZA8107209 | 1981-10-19 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI823522A0 FI823522A0 (fi) | 1982-10-15 |
| FI823522L FI823522L (fi) | 1983-04-20 |
| FI70258B FI70258B (fi) | 1986-02-28 |
| FI70258C true FI70258C (fi) | 1986-09-15 |
Family
ID=25575704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI823522A FI70258C (fi) | 1981-10-19 | 1982-10-15 | Foerfarande foer raffinering av ferrokrommetall |
Country Status (22)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1191517B (it) * | 1986-04-22 | 1988-03-23 | Necchi Spa | Procedimento per l'adduzione di elementi chimici metallici in fusioni metalliche |
| WO1989007499A1 (en) * | 1988-02-09 | 1989-08-24 | The Broken Hill Proprietary Company Limited | Superheating and microalloying of molten metal by contact with a plasma arc |
| DE102007016102A1 (de) * | 2007-04-03 | 2008-10-09 | Linde Ag | Vorrichtung und Verfahren zur Behandlung von Metallschmelzen |
| RU2553118C1 (ru) * | 2013-12-13 | 2015-06-10 | Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт черной металлургии им. И.П. Бардина" | Способ производства низкоуглеродистого феррохрома в электропечи |
| US10508319B1 (en) * | 2019-06-27 | 2019-12-17 | MM Metals USA, LLC | Method and system for producing low carbon ferrochrome from chromite ore and low carbon ferrochrome produced thereby |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US789093A (en) | 1903-07-13 | 1905-05-02 | Thomas E Hunt | Furnace. |
| US1465576A (en) | 1922-09-29 | 1923-08-21 | Thomas G Biggs | Index tag |
| US2845342A (en) | 1953-03-12 | 1958-07-29 | Strategic Udy Metallurg & Chem | Method of recovering ferrochromium |
| GB789093A (en) * | 1954-06-16 | 1958-01-15 | Chromium Mining & Smelting Cor | Improvements in or relating to the production of low carbon ferrochromium |
| US2776882A (en) * | 1955-12-19 | 1957-01-08 | Union Carbide & Carbon Corp | Decarburizing high-carbon ferrochromium |
| US3615349A (en) * | 1968-01-10 | 1971-10-26 | William Bleloch | Production of alloys of iron |
| JPS5414043B1 (US08197722-20120612-C00042.png) * | 1969-12-23 | 1979-06-04 | ||
| JPS5038050B2 (US08197722-20120612-C00042.png) * | 1971-12-29 | 1975-12-06 | ||
| JPS52150320A (en) * | 1976-06-10 | 1977-12-14 | Nippon Steel Corp | Production of low carbon ferrochromium |
-
1982
- 1982-10-12 AU AU89280/82A patent/AU534839B2/en not_active Expired
- 1982-10-13 CA CA000413310A patent/CA1199499A/en not_active Expired
- 1982-10-14 NO NO82823423A patent/NO156494C/no not_active IP Right Cessation
- 1982-10-14 GR GR69533A patent/GR76912B/el unknown
- 1982-10-15 ZW ZW220/82A patent/ZW22082A1/xx unknown
- 1982-10-15 FI FI823522A patent/FI70258C/fi not_active IP Right Cessation
- 1982-10-15 DE DE19823238174 patent/DE3238174A1/de active Granted
- 1982-10-18 ES ES516606A patent/ES8308933A1/es not_active Expired
- 1982-10-18 MX MX194819A patent/MX160059A/es unknown
- 1982-10-18 GB GB08229701A patent/GB2110717B/en not_active Expired
- 1982-10-18 SE SE8205893A patent/SE460908B/sv not_active IP Right Cessation
- 1982-10-18 YU YU02336/82A patent/YU233682A/xx unknown
- 1982-10-18 JP JP57183594A patent/JPS58136745A/ja active Pending
- 1982-10-18 WO PCT/GB1982/000293 patent/WO1983001462A1/en unknown
- 1982-10-18 BR BR8206065A patent/BR8206065A/pt not_active IP Right Cessation
- 1982-10-18 FR FR8217353A patent/FR2514785B1/fr not_active Expired
- 1982-10-18 US US06/434,752 patent/US4426223A/en not_active Expired - Lifetime
- 1982-10-19 AT AT0383982A patent/AT382641B/de not_active IP Right Cessation
- 1982-10-19 IT IT8223821A patent/IT1153269B/it active
- 1982-10-19 TR TR21724A patent/TR21724A/xx unknown
- 1982-12-31 IN IN946/DEL/82A patent/IN158808B/en unknown
-
1983
- 1983-06-16 RO RO83111308A patent/RO89015A/ro unknown
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MA | Patent expired |
Owner name: MIDDELBURG STEEL AND ALLOYS (PTY) LTD. Owner name: COUNCIL FOR MINERAL TECHNOLOGY |