GB1499049A - Process for the decarbonization of high carbon ferro-manganese or of high carbon ferro-chrome - Google Patents
Process for the decarbonization of high carbon ferro-manganese or of high carbon ferro-chromeInfo
- Publication number
- GB1499049A GB1499049A GB28172/76A GB2817276A GB1499049A GB 1499049 A GB1499049 A GB 1499049A GB 28172/76 A GB28172/76 A GB 28172/76A GB 2817276 A GB2817276 A GB 2817276A GB 1499049 A GB1499049 A GB 1499049A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blown
- nozzles
- melt
- oxygen
- gas
- 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
Links
- 229910000604 Ferrochrome Inorganic materials 0.000 title abstract 4
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 3
- 229910000616 Ferromanganese Inorganic materials 0.000 title abstract 3
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 title abstract 3
- 238000005262 decarbonization Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 abstract 4
- 239000000956 alloy Substances 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 4
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- 239000001301 oxygen Substances 0.000 abstract 4
- 229910052760 oxygen Inorganic materials 0.000 abstract 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 3
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 3
- 238000007792 addition Methods 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 3
- 239000004571 lime Substances 0.000 abstract 3
- 239000000155 melt Substances 0.000 abstract 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 229910015372 FeAl Inorganic materials 0.000 abstract 1
- 229910015136 FeMn Inorganic materials 0.000 abstract 1
- 229910005347 FeSi Inorganic materials 0.000 abstract 1
- 229910004534 SiMn Inorganic materials 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005261 decarburization Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000003345 natural gas Substances 0.000 abstract 1
- 239000001294 propane Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000011343 solid material Substances 0.000 abstract 1
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
- 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
- C21C7/068—Decarburising
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Continuous Casting (AREA)
Abstract
1499049 Decarbonizing ferro chrome and ferro manganese GFE GES FUR ELEKTROMETALLURGIE mbH 7 July 1976 [11 July 1975 10 Sept 1975] 28172/76 Heading C7D High carbon ferro manganese or ferro chromium are decarbonized by blowing a superheated melt of the alloy with oxygen using jacketted nozzles. The alloy is heated to more than 100C above its melting range and blown, without the addition of cooling materials, to 1650-1900C for FeMn and 1750-2000C for FeCr to form high melting point Mn or Cr oxides which are reduced by lime and additions of reducing agents i.e. Si or Al and/or their alloys. The lime and reducing agents are added simultaneously, the lime being blown into the melt through the jacketted nozzles with an inert gas (Ar or Ar/H) and the reductants being added in solid or liquid form from above. Examples of reductants are FeSi, FeAl, SiCr and SiMn. The rate and amount of oxygen blown in is adjusted so that the decarburization reaction takes place in an area just above the gas nozzles, so that intensive mixing of the melt, oxygen and possibly, the jacket gas will occur there. The amount of oxygen required is 10-3 0Nm<SP>3</SP> for each 1%C to be removed per tonne of alloy, and it should be blown into the melt in 1-12.5 minutes. The protective jacket gas may be natural gas, propane &c., and up to 20% of the charge may be added in the form of solid material, provided the addition of the solid charge does not interfere with the decarbonization reaction above the nozzles.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2531034A DE2531034C2 (en) | 1975-07-11 | 1975-07-11 | Process for decarburizing high-carbon ferro-manganese or high-carbon ferrochrome |
| DE19752540290 DE2540290C3 (en) | 1975-09-10 | Process for decarburizing * '1 "x 11" 6111 ferrochrome or high carbon ferromanganese |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1499049A true GB1499049A (en) | 1978-01-25 |
Family
ID=25769141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28172/76A Expired GB1499049A (en) | 1975-07-11 | 1976-07-07 | Process for the decarbonization of high carbon ferro-manganese or of high carbon ferro-chrome |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS529616A (en) |
| AU (1) | AU503271B2 (en) |
| BR (1) | BR7604467A (en) |
| CA (1) | CA1077277A (en) |
| CS (1) | CS208709B2 (en) |
| ES (1) | ES449716A1 (en) |
| FI (1) | FI761996A7 (en) |
| FR (1) | FR2317369A1 (en) |
| GB (1) | GB1499049A (en) |
| NO (1) | NO762364L (en) |
| PT (1) | PT65351B (en) |
| SE (1) | SE7607845L (en) |
| SU (1) | SU648121A3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4274871A (en) * | 1979-01-22 | 1981-06-23 | Societe Francaise D'electrometallurgie-Sofrem | Method of obtaining manganese alloys with a medium carbon content |
| DE3519111A1 (en) * | 1984-05-28 | 1986-01-02 | Japan Metals & Chemicals Co., Ltd., Tokio/Tokyo | METHOD FOR PRODUCING A HIGH-QUALITY IRON ALLOY BY MELT REDUCTION |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2414559A1 (en) * | 1978-01-17 | 1979-08-10 | Creusot Loire | FERRO-MANGANESE REFINING PROCESS |
| JPS541044U (en) * | 1978-04-28 | 1979-01-06 | ||
| FR2444083A1 (en) * | 1978-12-11 | 1980-07-11 | Sofrem | MANILESE ALLOY DEILICIATION PROCESS |
| JPS61291947A (en) * | 1985-06-18 | 1986-12-22 | Kawasaki Steel Corp | Production of alloy iron |
| CN110819880B (en) * | 2019-11-27 | 2021-06-22 | 宝钢德盛不锈钢有限公司 | Pretreatment process and application of chromium-containing low-nickel molten iron for production of 200-series stainless steel |
| WO2021177021A1 (en) | 2020-03-06 | 2021-09-10 | Ｊｆｅスチール株式会社 | Method for producing low-carbon ferromanganese |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1040526A (en) * | 1950-08-17 | 1953-10-15 | Bochumer Ver Fu R Gussstahlfab | Process for manufacturing low-carbon chromium and / or manganese alloys, of the type of refined and over-refined alloys |
| BE792732A (en) * | 1972-01-13 | 1973-03-30 | Elektrometallurgie Gmbh | PROCESS FOR RAPIDLY DECARBURATION OF IRON ALLOYS BY MEANS OF OXYGEN |
-
1976
- 1976-07-06 SU SU762378453A patent/SU648121A3/en active
- 1976-07-07 GB GB28172/76A patent/GB1499049A/en not_active Expired
- 1976-07-07 NO NO762364A patent/NO762364L/no unknown
- 1976-07-07 JP JP51080017A patent/JPS529616A/en active Granted
- 1976-07-08 BR BR7604467A patent/BR7604467A/en unknown
- 1976-07-08 SE SE7607845A patent/SE7607845L/en not_active Application Discontinuation
- 1976-07-08 FI FI761996A patent/FI761996A7/fi not_active Application Discontinuation
- 1976-07-09 ES ES449716A patent/ES449716A1/en not_active Expired
- 1976-07-09 FR FR7621161A patent/FR2317369A1/en active Granted
- 1976-07-09 CS CS764564A patent/CS208709B2/en unknown
- 1976-07-09 PT PT65351A patent/PT65351B/en unknown
- 1976-07-12 AU AU15817/76A patent/AU503271B2/en not_active Expired
- 1976-07-12 CA CA256,771A patent/CA1077277A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4274871A (en) * | 1979-01-22 | 1981-06-23 | Societe Francaise D'electrometallurgie-Sofrem | Method of obtaining manganese alloys with a medium carbon content |
| DE3519111A1 (en) * | 1984-05-28 | 1986-01-02 | Japan Metals & Chemicals Co., Ltd., Tokio/Tokyo | METHOD FOR PRODUCING A HIGH-QUALITY IRON ALLOY BY MELT REDUCTION |
Also Published As
| Publication number | Publication date |
|---|---|
| SU648121A3 (en) | 1979-02-15 |
| AU503271B2 (en) | 1979-08-30 |
| FR2317369B1 (en) | 1980-09-05 |
| BR7604467A (en) | 1977-07-26 |
| JPS5727166B2 (en) | 1982-06-09 |
| FR2317369A1 (en) | 1977-02-04 |
| JPS529616A (en) | 1977-01-25 |
| CS208709B2 (en) | 1981-09-15 |
| CA1077277A (en) | 1980-05-13 |
| SE7607845L (en) | 1977-01-13 |
| FI761996A7 (en) | 1977-01-12 |
| PT65351A (en) | 1976-08-01 |
| PT65351B (en) | 1978-01-06 |
| AU1581776A (en) | 1978-01-19 |
| ES449716A1 (en) | 1977-08-01 |
| NO762364L (en) | 1977-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |