EP4469609A1 - Composition de liant pour le briquetage et/ou la pelletisation de fines de minerai de fer ou d'aluminium et de résidus de minerai de fer ou d'aluminium et procédés associés - Google Patents
Composition de liant pour le briquetage et/ou la pelletisation de fines de minerai de fer ou d'aluminium et de résidus de minerai de fer ou d'aluminium et procédés associésInfo
- Publication number
- EP4469609A1 EP4469609A1 EP23706235.1A EP23706235A EP4469609A1 EP 4469609 A1 EP4469609 A1 EP 4469609A1 EP 23706235 A EP23706235 A EP 23706235A EP 4469609 A1 EP4469609 A1 EP 4469609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composite
- iron
- aluminum
- polymer
- aluminum ore
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005453 pelletization Methods 0.000 title description 7
- 239000000203 mixture Substances 0.000 title description 6
- 239000011230 binding agent Substances 0.000 title description 3
- 239000002131 composite material Substances 0.000 claims abstract description 69
- 229920000642 polymer Polymers 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 21
- 238000005054 agglomeration Methods 0.000 claims abstract description 11
- 230000002776 aggregation Effects 0.000 claims abstract description 11
- 239000008188 pellet Substances 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 235000013379 molasses Nutrition 0.000 claims description 8
- 229910052698 phosphorus Inorganic materials 0.000 claims description 8
- 239000011574 phosphorus Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 7
- 239000004484 Briquette Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 6
- 229920000881 Modified starch Polymers 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 6
- 235000019426 modified starch Nutrition 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 150000003863 ammonium salts Chemical class 0.000 claims description 3
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 229920003169 water-soluble polymer Polymers 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 12
- 150000003926 acrylamides Chemical class 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 235000012216 bentonite Nutrition 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
-
- 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
- C22B1/24—Binding; Briquetting ; Granulating
-
- 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
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
Definitions
- the disclosed technology generally provides for an iron or aluminum-ore composite and method of preparing a composite with a water-soluble binding polymer for agglomeration of iron or aluminum ore fines and residues in the briquetting and/or pelletization process.
- the disclosed technology generally provides for an iron or aluminum-ore composite and method of preparing an iron or aluminum-ore based composite.
- an iron or aluminum-ore based composite comprises i) a plurality of iron or aluminum ore particles, the iron or aluminum ore particles comprising iron or aluminum ore fines and/or iron or aluminum ore residues; ii) at least one water-soluble polymer, the polymer being either a liquid or a solid, wherein said polymer is prepared by polymerizing (i) at least one anionic monomer (a) selected from acrylic acid, a salt of acrylic acid, methacrylic acid, a salt of methacrylic acid, and/or combinations thereof; and (ii) an acrylamide monomer of the formula: wherein m and n independently represent a number between 150,000 and 250,000.
- the composite comprises a moisture content of less than about 15% wt. relative to the total weight of the composite.
- the composite is in the form of a pellet or in the form of a briquette.
- the composite does not comprise molasses, but may contain starch, and/or starch derivatives.
- the polymer has a M w molecular weight ranging from approximately 14 x 10 6 to 18 x 10 6 Daltons .
- polymer (i) is not neutralized, or (ii) is totally or partially neutralized.
- the totally or partially neutralized polymer is neutralized by NaOH, KOH, ammonium derivatives, ammonia, amino-alkali substances, and/or combinations thereof.
- the amino-alkali substances comprise triethanolamine or 2-amino-2-methyl-propanol (AMP).
- a method of preparing an iron or aluminum-ore based composite comprises (a) contacting a plurality of iron or aluminum ore particles with at least one water-soluble binding polymer to form an agglomeration, and (b) forming a composite.
- contacting the plurality of iron or aluminum ore particles with the binding polymer does not increase the amount of phosphorus present in the composite.
- contacting the plurality of iron or aluminum ore particles with the binding polymer does not increase the amount of silicon present in the composite.
- forming a composite comprises feeding the agglomeration into a mixer and press to form a plurality of briquettes and/or pellets. In some embodiments, forming a composite is carried out in the absence of molasses, starch, and/or starch derivatives.
- the composite comprises a moisture content of less than about 15% wt. relative to the total weight of the composite.
- Figure 1 is a general schematic process diagram of a typical briquetting process in which the disclosed water-soluble binding polymer composition may be utilized.
- the disclosed technology generally provides for an iron or aluminum-ore composite and method of preparing a composite, and more specifically, an iron or aluminum-ore composite and method of preparing a composite with a water-soluble binding polymer for agglomeration of iron or aluminum ore fines and residues in the briquetting and/or pelletization process, where the resulting briquettes and/or pellets can be used as feed to the blast furnace.
- an iron or aluminum-ore based composite comprises a plurality of iron or aluminum ore particles and at least one water-soluble binding polymer.
- the composite comprises a plurality of iron or aluminum ore particles and at least one water-soluble binding polymer.
- the iron or aluminum ore particles comprise iron or aluminum ore fines and/or iron or aluminum ore residues. It should be understood that the iron or aluminum ore fines and/or residues as described herein can be obtained from a variety of different sources.
- the iron or aluminum ore particles can be recovered from, for example, but not limited to, mini-mills (e.g. steel dust with electrostatic precipitation in electric arc furnace), integrated plants from raw material management (storage/transfer/grinding/sizing), from blast furnace (hydrocyclones) and from converters (coarse, dust).
- the water-soluble binding polymer is a liquid, and in some embodiments, the water-soluble binding polymer is a solid. In some embodiments, the water-soluble binding polymer is prepared in the absence of acrylamide and/or an acrylamide derivative, and in other embodiments, the water- soluble binding polymer is prepared with an acrylamide and/or an acrylamide derivative.
- the water-soluble binding polymer as disclosed herein is prepared by polymerizing (i) at least one anionic monomer (a) selected from acrylic acid, a salt of acrylic acid, methacrylic acid, a salt of methacrylic acid, and/or combinations thereof, and (ii) an acrylamide of formula: wherein m and n independently represent a number between 150,000 and 250,000.
- the M w molecular weight of the polymer may be between about 14 x 10 6 and 18 x 10 6 Daltons. In other embodiments, the M w molecular weight may be between about 15 x 10 6 and 17 x 10 6 Daltons.
- the polymer (i) is not neutralized, or (ii) is totally or partially neutralized. In such embodiments, wherein the polymer is totally or partially neutralized, the polymer is neutralized by NaOH, KOH, ammonium derivatives, ammonia, amino-alkali substances, and/or combinations thereof.
- the amino-alkali substances can comprise triethanolamine or 2-amino-2-methyl- propanol (AMP).
- the iron or aluminum-ore based composite is in the form of a pellet or in the form of a briquette.
- the composite does not comprise molasses, but can comprise starch, and/or starch derivatives. Because the iron or aluminum-ore composite of the disclosed technology does not include molasses, undesired elements, such as, for example, phosphorus and silicon, are not introduced into the briquette or pellet, thus improving the quality of the briquettes and/or pellets obtained.
- the iron or aluminum-ore based composite comprises a moisture content of less than about 15% wt. relative to the total weight of the composite. In some embodiments, the moisture content is less than about 12% wt. relative to the total weight of the composite, and in other embodiments, the moisture content is less than about 10% wt. relative to the total weight of the composite.
- a method of preparing an iron or aluminum-ore based composite comprises (a) contacting a plurality of iron or aluminum ore particles with at least one water-soluble binding polymer to form an agglomeration, and (b) forming a composite.
- the method first provides for contacting a plurality of iron or aluminum ore particles with at least one water-soluble binding polymer to form an agglomeration.
- the binding polymer may be applied to the iron or aluminum ore particles by intimate mixing. Upon contact of the binding polymer and the iron or aluminum particles, an agglomeration of these particles is facilitated.
- the water-soluble binding polymer of the present method is prepared by adding a prepared liquid solution of the acrylamide and/or an acrylamide derivative, and in other embodiments, the water-soluble binding polymer is prepared with a solid acrylamide and/or an acrylamide polymer.
- forming a composite is carried out in the absence of molasses, and possibly, but not necessarily, in the absence of starch, and/or starch derivatives. Since formation of the composite does not include these substances, undesired elements, such as, for example, phosphorus and silicon, are not introduced into the briquette or pellet. It should be understood that any recovered iron or aluminum ore composites may include trace amounts of phosphorus and/or silicon based on the source of the iron or aluminum ore residues or recovered fines. However, the disclosed method does not increase the amount of phosphorus and/or silicon that is ultimately present in the final composite.
- contacting the plurality of iron or aluminum ore particles with the binding polymer does not increase the amount of phosphorus present in the composite that is formed. In some embodiments, contacting the plurality of iron or aluminum ore particles with the binding polymer does not increase the amount of silicon present in the composite that is formed.
- forming a composite comprises feeding the agglomeration into a mixer and press to form a plurality of briquettes and/or pellets.
- the composite as described herein comprises a moisture content of less than about 15% wt. relative to the total weight of the composite. In other embodiments, the composite comprises a moisture content of less than about 12% wt. relative to the total weight of the composite, and in other embodiments, the moisture content is less than about 10% wt. relative to the total weight of the composite.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
L'invention concerne un composite à base de minerai de fer ou d'aluminium et un procédé de préparation du composite par (a) mise en contact d'une pluralité de particules de minerai de fer ou d'aluminium avec au moins un polymère de liaison hydrosoluble pour former une agglomération, et (b) formation d'un composite.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2200765 | 2022-01-28 | ||
| PCT/US2023/060993 WO2023147263A1 (fr) | 2022-01-28 | 2023-01-20 | Composition de liant pour le briquetage et/ou la pelletisation de fines de minerai de fer ou d'aluminium et de résidus de minerai de fer ou d'aluminium et procédés associés |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4469609A1 true EP4469609A1 (fr) | 2024-12-04 |
Family
ID=85283815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23706235.1A Pending EP4469609A1 (fr) | 2022-01-28 | 2023-01-20 | Composition de liant pour le briquetage et/ou la pelletisation de fines de minerai de fer ou d'aluminium et de résidus de minerai de fer ou d'aluminium et procédés associés |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250101543A1 (fr) |
| EP (1) | EP4469609A1 (fr) |
| KR (1) | KR20240142494A (fr) |
| CN (1) | CN118591644A (fr) |
| CA (1) | CA3248606A1 (fr) |
| WO (1) | WO2023147263A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893847A (en) * | 1970-08-07 | 1975-07-08 | Catoleum Pty Ltd | Composition of matter and process |
| JP5063978B2 (ja) * | 2006-10-20 | 2012-10-31 | 新日本製鐵株式会社 | 焼結原料の造粒方法 |
| BRPI0801555B1 (pt) * | 2008-03-06 | 2015-12-01 | Bentonit União Nordeste Sa | composição aglomerante para pelotização de minério de ferro e processo para pelotização de minério de ferro |
| CN105567953A (zh) * | 2015-12-28 | 2016-05-11 | 杨群 | 一种含铁有机冶金球团粘结剂及其制备方法 |
| WO2018148506A1 (fr) * | 2017-02-10 | 2018-08-16 | Cytec Industries Inc. | Formulations de liant et leurs utilisations pour former des produits agglomérés de matériau particulaire |
-
2023
- 2023-01-20 EP EP23706235.1A patent/EP4469609A1/fr active Pending
- 2023-01-20 CA CA3248606A patent/CA3248606A1/fr active Pending
- 2023-01-20 US US18/834,150 patent/US20250101543A1/en active Pending
- 2023-01-20 KR KR1020247028666A patent/KR20240142494A/ko active Pending
- 2023-01-20 CN CN202380018728.4A patent/CN118591644A/zh active Pending
- 2023-01-20 WO PCT/US2023/060993 patent/WO2023147263A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| KR20240142494A (ko) | 2024-09-30 |
| US20250101543A1 (en) | 2025-03-27 |
| CN118591644A (zh) | 2024-09-03 |
| WO2023147263A1 (fr) | 2023-08-03 |
| CA3248606A1 (fr) | 2023-08-03 |
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