EP2207905A1 - Verfahren zur rostfreistahlerzeugung mit direktreduktionsöfen für ferrochrom und ferronickel auf der primärseite eines konverters - Google Patents
Verfahren zur rostfreistahlerzeugung mit direktreduktionsöfen für ferrochrom und ferronickel auf der primärseite eines konvertersInfo
- Publication number
- EP2207905A1 EP2207905A1 EP08842218A EP08842218A EP2207905A1 EP 2207905 A1 EP2207905 A1 EP 2207905A1 EP 08842218 A EP08842218 A EP 08842218A EP 08842218 A EP08842218 A EP 08842218A EP 2207905 A1 EP2207905 A1 EP 2207905A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- direct reduction
- ferrochrome
- converter
- ferronickel
- liquid
- 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.)
- Granted
Links
- 229910000604 Ferrochrome Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229910000863 Ferronickel Inorganic materials 0.000 title claims abstract description 19
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 16
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 31
- 239000011651 chromium Substances 0.000 claims abstract description 26
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 24
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000011946 reduction process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000000543 intermediate Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000161 steel melt Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/143—Injection of partially reduced ore into a molten bath
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/021—Obtaining nickel or cobalt by dry processes by reduction in solid state, e.g. by segregation processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
Definitions
- the invention relates to a process for the production of stainless steel on the basis of chrome ore and nickel ore in several on the intermediates ferrochrome and ferronickel coordinated process steps.
- the EAF application varies depending on the availability of scrap or the availability of scrap and pig iron.
- the development of the process is currently in the application of pig iron or liquid chromium together with a reduced proportion of low or high alloy scrap, combined with alloys.
- EP 1 641 946 B1 proposes a process for the production of an alloyed molten metal with the aim of minimizing production costs at a higher quality and reducing waste materials such as Cr-containing or Cr- and Ni-containing dust. and slags in the production process.
- the process consists of the following successive process steps in different converters with up and Unterbadblasen, wherein in each process step liquid pig iron is charged from a pig iron mixer in the respective converter:
- Process step producing a pre-alloyed melt with 20.3% Cr and 2% Ni and a temperature of 1560 0 C in a recycling converter.
- Method step introducing a Cr carrier and an additional reducing agent, a slag former and a fossil energy source into the first pre-alloyed melt in a KMS-S converter and preparing an alloyed pre-melt for the third method step with 25.9% Cr and 1.38 % Ni and a temperature of 1500 0 C.
- Process step Final treatment in a K-OBM-S converter and adding in particular ferroalloys with a decarburization process and setting of an alloyed molten steel with the predetermined chemical analysis of 18.14% Cr and 8.06% Ni and a predetermined temperature from 1680 0 C.
- the inventive separation of the production of ferrochrome and ferronickel on two in the process line in parallel before a further processing converter, which can be used as a converter, for example, AOD, AOD-L or MRP, MRP-L, is by the direct use of the two ores Chrome and nickel achieved a significant reduction in steelmaking costs.
- the investment costs of the reduction furnaces (Submerged Are Furnace) with the associated systems are approx. 9 times higher than the classic line EAF-AOD-L, the raw material costs are more favorable in approximately the same ratio. Thus, the investment can be amortized very quickly.
- the process is much easier to run because of the sole DRI (direct reduction of iron) or scrap addition in the converter.
- the two direct reduction processes on the primary side of the process line with the nickel and chromium ore feedstock deliver, for example, approximately 340 kg / t of liquid ferrochrome at about one hour, with about 55% Cr and about 540 kg / ts tah i liquid ferronickel with about 15% of Ni each having about about 1600 0 C.
- the DRI or the carbon scrap also performs the function of cooling the melt to compensate for the high Energysupplementary- by the oxidation reactions of carbon, silicon and zn part of Chrome and iron.
- the converter process ends with slag reduction and fine tuning of the chemical target analysis.
- Phosphorus occurs in the process according to the invention only in smaller quantities, so that this element is unproblematical for the stainless steels to consider te, and higher sulfur contents are removed in the converter process with sufficient efficiency.
- a process line 10 with exemplarily selected individual components, with which the method according to the invention can be performed, shown schematically.
- the material flow direction between the individual components which is indicated by a double arrow in each case, begins in the drawing figure at the top left and runs down to the right.
- process line 10 consists of two direct reduction furnaces, a SAF 3 for the production of ferrochrome and a SAF 4 for the production of ferronickel.
- SAF 3 for the production of ferrochrome
- SAF 4 for the production of ferronickel.
- the raw material mixtures 1, 2 used are shown in the form of different sized aggregates.
- the average compositions of the raw material mixtures 1, 2 for carrying out the primary direct reduction according to the invention are as follows:
- Chromium ore mixture 1 coke, chrome ore with 24 - 37% Cr, approx. 30
- Nickel ore raw material mixture 2 coke, nickel ore with 1, 2 - 1, 5% Ni, approx. 15% Fe.
- the reduction processes carried out with these raw material mixtures 1, 2 in the SAFs 3, 4 deliver, for example in about one hour intervals:
- the metal mixture is then charged with the transport ladle 5 into the further converter 6, in the exemplary embodiment shown this is an AOD-L in which the required last process steps for producing the stainless steel are carried out with the predetermined chemical target analysis.
- the completion of the process line 10 then forms a behind the AOD-L 6 arranged continuous caster (CCM) 8 with an intermediate Ladle Treatment Station (LTS). 7 LIST OF REFERENCE NUMBERS
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture Of Iron (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007050478A DE102007050478A1 (de) | 2007-10-23 | 2007-10-23 | Verfahren zur Rostfreistahlerzeugung mit Direktreduktionsöfen für Ferrochrom und Ferronickel auf der Primärseite eines Konverters |
PCT/EP2008/008928 WO2009053044A1 (de) | 2007-10-23 | 2008-10-22 | Verfahren zur rostfreistahlerzeugung mit direktreduktionsöfen für ferrochrom und ferronickel auf der primärseite eines konverters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2207905A1 true EP2207905A1 (de) | 2010-07-21 |
EP2207905B1 EP2207905B1 (de) | 2013-08-14 |
Family
ID=40239613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08842218.3A Active EP2207905B1 (de) | 2007-10-23 | 2008-10-22 | Verfahren zur rostfreistahlerzeugung mit direktreduktionsöfen für ferrochrom und ferronickel auf der primärseite eines konverters |
Country Status (12)
Country | Link |
---|---|
US (1) | US8133296B2 (de) |
EP (1) | EP2207905B1 (de) |
JP (1) | JP5583585B2 (de) |
KR (1) | KR101174705B1 (de) |
CN (1) | CN101835911A (de) |
AU (1) | AU2008315932B2 (de) |
BR (1) | BRPI0818714B1 (de) |
DE (1) | DE102007050478A1 (de) |
ES (1) | ES2426455T3 (de) |
TW (1) | TWI392742B (de) |
WO (1) | WO2009053044A1 (de) |
ZA (1) | ZA201002190B (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201400624A (zh) * | 2012-06-28 | 2014-01-01 | Yieh United Steel Corp | 利用鎳、鉻礦生產沃斯田鐵系不銹鋼的方法 |
CN103045790B (zh) * | 2012-12-24 | 2016-06-22 | 河北节能耐火材料集团有限公司 | 含镍钢生产工艺 |
CN103146983B (zh) * | 2013-03-18 | 2016-03-23 | 莱芜钢铁集团有限公司 | 一种利用粗镍铁生产含镍钢的方法 |
KR101630953B1 (ko) * | 2014-10-24 | 2016-06-16 | 주식회사 포스코 | 스테인레스강의 제조 방법 |
CN109750137A (zh) * | 2019-01-15 | 2019-05-14 | 明拓集团铬业科技有限公司 | 一种高碳铬铁水直接热兑生产不锈钢的制造方法 |
DE102021214220A1 (de) | 2021-03-08 | 2022-09-08 | Sms Group Gmbh | Verfahren zum Herstellen einer Ferrolegierung mit niedrigem Kohlenstoffgehalt |
DE102021214218A1 (de) | 2021-03-08 | 2022-09-08 | Sms Group Gmbh | Verfahren zum Herstellen einer Ferrolegierung mit niedrigem Kohlenstoffgehalt |
EP4056720A1 (de) | 2021-03-08 | 2022-09-14 | SMS Group GmbH | Verfahren zum herstellen einer ferrolegierung mit niedrigem kohlenstoffgehalt |
EP4056721A1 (de) | 2021-03-08 | 2022-09-14 | SMS Group GmbH | Verfahren zum herstellen einer ferrolegierung mit niedrigem kohlenstoffgehalt |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3728101A (en) * | 1970-11-09 | 1973-04-17 | Armco Steel Corp | Process for making stainless steel |
US3947267A (en) * | 1973-07-23 | 1976-03-30 | Armco Steel Corporation | Process for making stainless steel |
JPS5423016A (en) * | 1977-07-23 | 1979-02-21 | Pacific Metals Co Ltd | Method of producing austenitic stainless steel containing nickel |
US4488903A (en) * | 1984-03-14 | 1984-12-18 | Union Carbide Corporation | Rapid decarburization steelmaking process |
JPH07100810B2 (ja) * | 1989-02-21 | 1995-11-01 | 日本鋼管株式会社 | 含Ni,Cr溶湯の製造方法 |
JPH02221336A (ja) * | 1989-02-21 | 1990-09-04 | Nkk Corp | Ni鉱石の溶融還元法 |
US5039480A (en) * | 1989-02-21 | 1991-08-13 | Nkk Corporation | Method for manufacturing molten metal containing Ni and Cr |
JPH0791600B2 (ja) * | 1989-03-09 | 1995-10-04 | 日本鋼管株式会社 | Ni鉱石の溶融還元法 |
JPH0277534A (ja) * | 1989-05-31 | 1990-03-16 | Kawasaki Steel Corp | クロム鉱石の溶融還元法 |
US5178666A (en) * | 1991-12-03 | 1993-01-12 | Inco Limited | Low temperature thermal upgrading of lateritic ores |
FI934698A (fi) | 1993-10-25 | 1995-04-26 | Outokumpu Steel Oy | Menetelmä ja laitteisto ruostumattoman teräksen valmistamiseksi |
ATA155793A (de) | 1993-08-04 | 1996-04-15 | Voest Alpine Ind Anlagen | Verfahren zum herstellen einer metallschmelze und anlage zur durchführung des verfahrens |
JP2803534B2 (ja) * | 1993-10-28 | 1998-09-24 | 日本鋼管株式会社 | 転炉の吹錬制御方法 |
AT400245B (de) * | 1993-12-10 | 1995-11-27 | Voest Alpine Ind Anlagen | Verfahren und anlage zum herstellen einer eisenschmelze |
US5514337A (en) * | 1994-01-11 | 1996-05-07 | American Research Corporation Of Virginia | Chemical sensor using eddy current or resonant electromagnetic circuit detection |
JPH07207313A (ja) * | 1994-01-14 | 1995-08-08 | Sumitomo Metal Ind Ltd | 錫めっき鋼板スクラップの溶解方法 |
WO1997020954A1 (en) | 1995-12-06 | 1997-06-12 | Wmc Resources Ltd. | Simplified duplex processing of nickel ores and/or concentrates for the production of ferronickels, nickel irons and stainless steels |
DE19621143A1 (de) * | 1996-01-31 | 1997-08-07 | Mannesmann Ag | Verfahren zur Erzeugung nichtrostender Stähle |
FR2753205B1 (fr) | 1996-09-12 | 1998-12-04 | Usinor Sacilor | Procede pour realiser un laitier moussant au-dessus d'un acier inoxydable en fusion dans un four electrique |
DE19748310C1 (de) | 1997-10-31 | 1998-12-17 | Siemens Ag | Verfahren und Einrichtung zur Steuerung der Schaumschlackenbildung in einem Lichtbogenofen |
JP3567705B2 (ja) * | 1997-12-01 | 2004-09-22 | Jfeスチール株式会社 | ニッケル含有鋼の溶製方法 |
JP3711738B2 (ja) * | 1998-03-17 | 2005-11-02 | Jfeスチール株式会社 | スラグの有効利用方法 |
DE19820943A1 (de) | 1998-05-11 | 1999-11-18 | Henkel Kgaa | Alkylsulfat-Granulate |
SE512757C2 (sv) | 1998-09-03 | 2000-05-08 | Uddeholm Technology Ab | Tillsats av dopingmedel vid tillverkning av stål i ljusbågsugn, dopingmedlet samt användning av detta |
NO311226B1 (no) | 1999-10-18 | 2001-10-29 | Norsk Hydro As | Skumming av slagg |
AU5506001A (en) * | 2000-05-10 | 2001-11-20 | Ranjan Sen | Improved process for the production of stainless steels and high chromium steelsand stainless steelproduced thereby |
US6689198B2 (en) | 2002-01-15 | 2004-02-10 | Multisorb Technologies, Inc. | Self-retaining adsorbent unit |
DE10201108A1 (de) * | 2002-01-15 | 2003-07-24 | Sms Demag Ag | Verfahren zur pyrometallurgischen Behandlung von Metallen, Metallschmelzen und/oder Schlacken sowie eine Injektorvorrichtung |
DE10209472B4 (de) * | 2002-03-05 | 2004-08-26 | Sms Demag Ag | Verfahren zum Erzeugen von nichtrostendem Stahl, insbesondere von chrom- oder chromnickelhaltigem Edelstahl |
DE10227031A1 (de) * | 2002-06-17 | 2004-01-08 | Sms Demag Ag | Verfahren und Produktionsanlage zum Erzeugen von Produkten aus C-Stahl oder aus Rostfrei-Stahl |
US20030230163A1 (en) * | 2002-06-18 | 2003-12-18 | Fritz-Peter Pleschiutschnigg | Method of and plant for producing products from carbon or stainless steel |
DE10323505A1 (de) | 2003-05-24 | 2004-12-09 | Sms Demag Ag | Verfahren zur Erzeugung einer Schaumschlacke auf hochchromhaltigen Schmelzen in einem Elektroofen |
AT412349B (de) * | 2003-06-25 | 2005-01-25 | Voest Alpine Ind Anlagen | Verfahren zur herstellung einer legierten metallschmelze und erzeugungsanlage hierzu |
-
2007
- 2007-10-23 DE DE102007050478A patent/DE102007050478A1/de not_active Withdrawn
-
2008
- 2008-10-22 EP EP08842218.3A patent/EP2207905B1/de active Active
- 2008-10-22 BR BRPI0818714A patent/BRPI0818714B1/pt not_active IP Right Cessation
- 2008-10-22 ES ES08842218T patent/ES2426455T3/es active Active
- 2008-10-22 TW TW097140411A patent/TWI392742B/zh not_active IP Right Cessation
- 2008-10-22 KR KR1020107008801A patent/KR101174705B1/ko active IP Right Grant
- 2008-10-22 JP JP2010530334A patent/JP5583585B2/ja not_active Expired - Fee Related
- 2008-10-22 WO PCT/EP2008/008928 patent/WO2009053044A1/de active Application Filing
- 2008-10-22 US US12/734,341 patent/US8133296B2/en active Active
- 2008-10-22 AU AU2008315932A patent/AU2008315932B2/en not_active Ceased
- 2008-10-22 CN CN200880112850A patent/CN101835911A/zh active Pending
-
2010
- 2010-03-26 ZA ZA2010/02190A patent/ZA201002190B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009053044A1 * |
Also Published As
Publication number | Publication date |
---|---|
BRPI0818714B1 (pt) | 2017-03-28 |
BRPI0818714A2 (pt) | 2015-08-25 |
KR101174705B1 (ko) | 2012-08-16 |
ZA201002190B (en) | 2010-11-24 |
TW200920852A (en) | 2009-05-16 |
BRPI0818714A8 (pt) | 2016-05-03 |
US20100288078A1 (en) | 2010-11-18 |
JP2011500965A (ja) | 2011-01-06 |
EP2207905B1 (de) | 2013-08-14 |
KR20100056570A (ko) | 2010-05-27 |
AU2008315932A1 (en) | 2009-04-30 |
CN101835911A (zh) | 2010-09-15 |
DE102007050478A1 (de) | 2009-04-30 |
JP5583585B2 (ja) | 2014-09-03 |
US8133296B2 (en) | 2012-03-13 |
WO2009053044A1 (de) | 2009-04-30 |
ES2426455T3 (es) | 2013-10-23 |
TWI392742B (zh) | 2013-04-11 |
AU2008315932B2 (en) | 2011-04-14 |
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