WO2023184811A1 - Procédé de production d'acier faisant appel à du minerai de basse qualité résiduaire au lieu de minerai riche en fer en tant que matière première - Google Patents
Procédé de production d'acier faisant appel à du minerai de basse qualité résiduaire au lieu de minerai riche en fer en tant que matière première Download PDFInfo
- Publication number
- WO2023184811A1 WO2023184811A1 PCT/CN2022/109556 CN2022109556W WO2023184811A1 WO 2023184811 A1 WO2023184811 A1 WO 2023184811A1 CN 2022109556 W CN2022109556 W CN 2022109556W WO 2023184811 A1 WO2023184811 A1 WO 2023184811A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ore
- raw material
- steel
- chromium
- instead
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 48
- 239000002699 waste material Substances 0.000 title claims abstract description 29
- 239000002994 raw material Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000011651 chromium Substances 0.000 claims abstract description 32
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 31
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- 238000003723 Smelting Methods 0.000 claims abstract description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006227 byproduct Substances 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 9
- 229910000914 Mn alloy Inorganic materials 0.000 claims abstract description 7
- 239000000571 coke Substances 0.000 claims abstract description 6
- 238000010891 electric arc Methods 0.000 claims abstract description 4
- 238000009628 steelmaking Methods 0.000 claims abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 23
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 14
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 239000011572 manganese Substances 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910000599 Cr alloy Inorganic materials 0.000 claims 1
- 229910000676 Si alloy Inorganic materials 0.000 claims 1
- 238000005275 alloying Methods 0.000 claims 1
- 239000000788 chromium alloy Substances 0.000 claims 1
- 229910001120 nichrome Inorganic materials 0.000 claims 1
- 239000002436 steel type Substances 0.000 claims 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 abstract description 6
- 238000005261 decarburization Methods 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 2
- 230000023556 desulfurization Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
Images
Classifications
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/007—Conditions of the cokes or characterised by the cokes used
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- 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
Definitions
- the molten iron includes the following weight ratio components: C 2.5-4.5%, Cr 2-4%, Ni 1-3.5%, Si 0.5-5%, Mn 0.5 ⁇ 2%, S 0.02 ⁇ 0.3%, P 0.008 ⁇ 0.15%; Al 2 O 3 , CaO and MgO in the sinter are separated in the form of by-product slag;
- the present invention has one or more of the following beneficial effects:
- the manganese, nickel, and chromium in the chromium-nickel steel billet come from the raw materials. There is no need to add silicon-manganese alloy to increase the strength of the steel, shortening the process and reducing costs;
- Figure 1 is a flow chart of a method for producing steel using waste low-grade ore instead of rich iron ore as raw material according to a preferred embodiment of the present invention.
- the raw materials are sintered to obtain sinter, which includes the following weight ratio components: TFe 33.01%, Cr 0.89%, Ni 1.29%, Al 2 O 3 4.88%, SiO 2 17.98%, CaO 13.5%, MgO 12.11%, MnO 0.82%, S 0.019%, P 0.025%;
- the molten iron includes the following weight ratio components: C 3.58%, Cr 2.70%, Ni 3.30%, Si 2.35%, Mn 0.55%, S 0.18%, P 0.088 %; Al 2 O 3 , CaO and MgO in the sinter are separated in the form of by-product slag;
- part of the chromium is removed along with the phosphorus during dephosphorization.
- the abandoned low-grade ore includes the following weight ratio components: TFe 49.02%, Cr 1.53%, Ni 0.70%, Al 2 O 3 6.45%, SiO 2 6.80%, CaO 0.69% , MgO 2.92%, MnO 1.22%, S 0.20%, P 0.011%, moisture 32.20%.
- part of the chromium is removed along with the phosphorus during dephosphorization.
- the abandoned low-grade ore includes the following weight ratio components: TFe 49.0%, Cr 1.03%, Ni 0.70%, Al 2 O 3 5.85%, SiO 2 6.18%, CaO 0.63% , MgO 2.85%, MnO 1.17%, S 0.18%, P 0.019%, moisture 30.21%.
- the sinter includes the following weight ratio components: TFe 47%, Cr 0.90%, Ni 0.68%, Al 2 O 3 8.01%, SiO 2 8.02%, CaO 7.91%, MgO 2.18% , MnO 2.09%, S 0.016%, P 0.041%;
- the chromium-nickel steel billet Q960 includes the following weight ratio components: C 0.18%, Cr 0.54%, Ni 1.32%, Si 0.27%, Mn 0.84%, S 0.015%, P 0.010%, the remainder The amount is Fe and unavoidable impurities.
- the silicon manganese, nickel and chromium in the chromium-nickel steel billet come from the raw materials.
- the present invention has one or more of the following beneficial effects:
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
L'invention concerne un procédé de production d'acier faisant appel à un minerai de basse qualité résiduaire au lieu d'un minerai riche en fer en tant que matière première, comprenant les étapes suivantes consistant à : utiliser un minerai de basse qualité résiduaire au lieu d'un minerai riche en fer classique en tant que matière première, le minerai de basse qualité résiduaire comprenant les constituants suivants en pourcentage en poids : TFe : de 30 à 49,5 % ; Cr : de 0,7 à 2,2 % ; Ni : de 0,5 à 1,5 % ; Al2O3 : de 4,5 à 9 % ; SiO2 : de 4 à 37 % ; CaO : de 0,18 à 1,4 % ; MgO : de 0,8 à 23 % ; MnO : de 0,5 à 2,3 % ; S : de 0,01 à 0,3 % ; P : de 0,008 à 0,05 % ; et de l'eau : de 8 à 40 % ; fritter la matière première pour obtenir un minerai fritté ; ajouter du coke pour la fusion en haut-fourneau du minerai fritté de façon à obtenir du chrome et du nickel contenant du fer fondu et un laitier de sous-produit ; et mener une fusion dans un four à arc électrique ou dans un convertisseur, et mener une décarburation, une déphosphoration, une désoxydation et une désulfuration pour obtenir directement une billette contenant du chrome et du nickel. L'étape d'ajout, pendant un processus de fabrication d'acier faisant appel à un minerai riche en fer classique fondu, d'un alliage de silicium-manganèse et d'un alliage de nickel-chrome afin de satisfaire aux exigences de l'acier fini est omise.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210339048.X | 2022-04-01 | ||
| CN202210339048.XA CN114717411A (zh) | 2022-04-01 | 2022-04-01 | 利用废弃低品位矿代替富铁矿作为原料生产钢的方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023184811A1 true WO2023184811A1 (fr) | 2023-10-05 |
Family
ID=82242541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/109556 WO2023184811A1 (fr) | 2022-04-01 | 2022-08-01 | Procédé de production d'acier faisant appel à du minerai de basse qualité résiduaire au lieu de minerai riche en fer en tant que matière première |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114717411A (fr) |
| WO (1) | WO2023184811A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717411A (zh) * | 2022-04-01 | 2022-07-08 | 巩义市董氏模板有限公司 | 利用废弃低品位矿代替富铁矿作为原料生产钢的方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847440A (zh) * | 2006-04-25 | 2006-10-18 | 吴江市东大铸造有限公司 | 镍铬铁合金及生产方法 |
| CN101092656A (zh) * | 2007-04-30 | 2007-12-26 | 郑州永通特钢有限公司 | 使用含镍、铬的低品位褐铁矿冶炼低磷不锈钢基料的方法 |
| CN101445845A (zh) * | 2008-12-19 | 2009-06-03 | 陈法官 | 利用红土镍矿直接生产奥氏体不锈钢的生产工艺 |
| CN101469391A (zh) * | 2007-12-29 | 2009-07-01 | 中冶东方工程技术有限公司上海分公司 | 一种含Ni不锈钢冶炼方法 |
| CN102220484A (zh) * | 2011-05-27 | 2011-10-19 | 广西盛隆冶金有限公司 | 红土镍矿生产烧结矿的用途及方法 |
| CN102321849A (zh) * | 2011-09-05 | 2012-01-18 | 广西盛隆冶金有限公司 | 一种含镍铬合金钢的制备方法 |
| CN114717411A (zh) * | 2022-04-01 | 2022-07-08 | 巩义市董氏模板有限公司 | 利用废弃低品位矿代替富铁矿作为原料生产钢的方法 |
-
2022
- 2022-04-01 CN CN202210339048.XA patent/CN114717411A/zh active Pending
- 2022-08-01 WO PCT/CN2022/109556 patent/WO2023184811A1/fr unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847440A (zh) * | 2006-04-25 | 2006-10-18 | 吴江市东大铸造有限公司 | 镍铬铁合金及生产方法 |
| CN101092656A (zh) * | 2007-04-30 | 2007-12-26 | 郑州永通特钢有限公司 | 使用含镍、铬的低品位褐铁矿冶炼低磷不锈钢基料的方法 |
| CN101469391A (zh) * | 2007-12-29 | 2009-07-01 | 中冶东方工程技术有限公司上海分公司 | 一种含Ni不锈钢冶炼方法 |
| CN101445845A (zh) * | 2008-12-19 | 2009-06-03 | 陈法官 | 利用红土镍矿直接生产奥氏体不锈钢的生产工艺 |
| CN102220484A (zh) * | 2011-05-27 | 2011-10-19 | 广西盛隆冶金有限公司 | 红土镍矿生产烧结矿的用途及方法 |
| CN102321849A (zh) * | 2011-09-05 | 2012-01-18 | 广西盛隆冶金有限公司 | 一种含镍铬合金钢的制备方法 |
| CN114717411A (zh) * | 2022-04-01 | 2022-07-08 | 巩义市董氏模板有限公司 | 利用废弃低品位矿代替富铁矿作为原料生产钢的方法 |
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| Publication number | Publication date |
|---|---|
| CN114717411A (zh) | 2022-07-08 |
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