BR0200104A - Processo para a produção de partìculas de magnetita - Google Patents
Processo para a produção de partìculas de magnetitaInfo
- Publication number
- BR0200104A BR0200104A BR0200104-7A BR0200104A BR0200104A BR 0200104 A BR0200104 A BR 0200104A BR 0200104 A BR0200104 A BR 0200104A BR 0200104 A BR0200104 A BR 0200104A
- Authority
- BR
- Brazil
- Prior art keywords
- component
- mol
- magnetite particles
- suspension
- iron
- Prior art date
Links
- 239000002245 particle Substances 0.000 title abstract 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 239000000725 suspension Substances 0.000 abstract 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 150000002506 iron compounds Chemical class 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/08—Ferroso-ferric oxide [Fe3O4]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/22—Compounds of iron
- C09C1/24—Oxides of iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/41—Particle morphology extending in three dimensions octahedron-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
- Developing Agents For Electrophotography (AREA)
- Soft Magnetic Materials (AREA)
Abstract
"PROCESSO PARA A PRODUçãO DE PARTìCULAS DE MAGNETITA". Esta invenção refere-se a um processo para produzir partículas de magnetita tendo uma coercibilidade de 6,366 kA/m a 10,345 kA/m (= 80 a 130 Oe) e um formato octaédrico de partícula, compreendendo o aquecimento de um componente alcalino e de um componente ferro(II) sob a forma de uma solução aquosa a uma temperatura de 50<198>C a 100<198>C, em que a relação molar do componente ferro(II) para um equivalente do componente alcalino é de 0,38 a 0,45, e tratamento da suspensão com um agente oxidante em uma taxa de oxidação de 20 a 50 % em mol de Fe(II)/h até que o composto de ferro tenha um conteúdo de Fe(III) de mais de 65 % em mol, e então adicionar novamente um componente Fe(II) sob a forma de uma solução aquosa em uma proporção molar de Fe(II) para um equivalente de componente alcalino total utilizado de 0,47 a 0,49, e tratar a suspensão com um agente oxidante, a uma taxa de oxidação de 20 a 50 % em mol de Fe(II)/h até que o composto de ferro tenha um conteúdo de Fe(III) de mais de 65 % em mol, e filtração da suspensão, e lavagem, secagem e moagem do resíduo.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10101769A DE10101769A1 (de) | 2001-01-17 | 2001-01-17 | Verfahren zur Herstellung von Magnetitteilchen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0200104A true BR0200104A (pt) | 2002-10-22 |
Family
ID=7670726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0200104-7A BR0200104A (pt) | 2001-01-17 | 2002-01-16 | Processo para a produção de partìculas de magnetita |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US6767529B2 (pt) |
| EP (1) | EP1225154B1 (pt) |
| JP (1) | JP4153698B2 (pt) |
| CN (1) | CN1199866C (pt) |
| AR (1) | AR032237A1 (pt) |
| AT (1) | ATE509892T1 (pt) |
| AU (1) | AU1018602A (pt) |
| BR (1) | BR0200104A (pt) |
| CA (1) | CA2367079A1 (pt) |
| DE (1) | DE10101769A1 (pt) |
| ES (1) | ES2364629T3 (pt) |
| HK (1) | HK1046266A1 (pt) |
| MX (1) | MXPA02000594A (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10209150A1 (de) * | 2002-03-01 | 2003-09-11 | Bayer Ag | Verfahren zur Herstellung von Magnetitteilchen und deren Verwendung |
| CN100461309C (zh) * | 2006-01-27 | 2009-02-11 | 中国科学院过程工程研究所 | 高饱和磁化强度的磁粉及其制备方法和用途 |
| ES2296522B1 (es) * | 2006-05-26 | 2009-04-01 | Europea De Minerales Y Derivados, S.L. | Masa pesada para la fabricacion de productos con alta capacidad de radio-proteccion. |
| US7597958B2 (en) | 2007-02-23 | 2009-10-06 | Toda Kogyo Corporation | Black magnetic iron oxide particles having a specific dissolution of sulfur element |
| DE102008015365A1 (de) * | 2008-03-20 | 2009-09-24 | Merck Patent Gmbh | Magnetische Nanopartikel und Verfahren zu deren Herstellung |
| BR112013033063A2 (pt) * | 2011-06-30 | 2017-01-24 | Nanogreen Biorefineries Inc | conversão catalítica de biomassa |
| CN104628073B (zh) * | 2015-01-28 | 2016-08-17 | 天津城建大学 | 一种用于废水处理的纳米铁的制备方法 |
| CN105771992B (zh) * | 2016-05-13 | 2019-02-12 | 北京三聚环保新材料股份有限公司 | 一种低成本催化剂的制备方法与应用 |
| CN109665566A (zh) * | 2019-01-23 | 2019-04-23 | 深圳市长隆科技有限公司 | 一种磁性纳米四氧化三铁的制备方法与污水处理方法 |
| TR201903564A2 (tr) | 2019-03-08 | 2019-03-21 | Safas Saf Plastik Sanayi Ve Ticaret Anonim Sirketi | Stres ve ağri azaltici bi̇r malzeme olarak magneti̇t parti̇külleri̇ i̇çeren sürekli̇ blok esnek poli̇üretan köpük üretmek i̇çi̇n yöntem |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE216040C (pt) | ||||
| DE284478C (pt) | 1913-07-10 | 1915-05-28 | ||
| JPS5110198A (pt) | 1974-07-15 | 1976-01-27 | Toda Kogyo Corp | |
| JPS5528203B2 (pt) | 1974-10-14 | 1980-07-26 | ||
| DE2618058A1 (de) | 1976-04-24 | 1977-11-10 | Bayer Ag | Verfahren zur kontinuierlichen herstellung von eisenoxidschwarzpigmenten |
| CA1149582A (en) | 1979-02-09 | 1983-07-12 | Pfizer Limited | Synthetic rhombohedrol magnetite pigment |
| DE3209469A1 (de) | 1981-03-19 | 1982-09-30 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von eisenoxidschwarz-pigmenten mit verbesserter saeurebestaendigkeit und deren verwendung |
| DD216040A1 (de) | 1983-06-17 | 1984-11-28 | Dieter Naumann | Verfahren zur herstellung von eisenoxidschwarzpigmenten |
| DE3500470A1 (de) | 1985-01-09 | 1986-07-10 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung heller farbreiner eisenoxidrotpigmente |
| DE3821342A1 (de) * | 1988-06-24 | 1989-12-28 | Bayer Ag | Neue eisenoxidpigmente, verfahren zu ihrer herstellung sowie deren verwendung |
| US5389482A (en) * | 1992-04-23 | 1995-02-14 | Toda Kogyo Corp. | Magnetic particle powder included in magnetic toners for magnetic image character recognition |
| JP3470929B2 (ja) * | 1995-07-04 | 2003-11-25 | 三井金属鉱業株式会社 | マグネタイト粒子およびその製造方法 |
| JP3594160B2 (ja) * | 1996-08-30 | 2004-11-24 | 三井金属鉱業株式会社 | マグネタイト粒子およびその製造方法 |
| JPH10101339A (ja) * | 1996-09-27 | 1998-04-21 | Titan Kogyo Kk | マグネタイト粒子粉末及びその製造方法並びにその応用 |
-
2001
- 2001-01-17 DE DE10101769A patent/DE10101769A1/de not_active Withdrawn
-
2002
- 2002-01-04 EP EP02000125A patent/EP1225154B1/de not_active Expired - Lifetime
- 2002-01-04 AT AT02000125T patent/ATE509892T1/de active
- 2002-01-04 ES ES02000125T patent/ES2364629T3/es not_active Expired - Lifetime
- 2002-01-09 AR ARP020100063A patent/AR032237A1/es active IP Right Grant
- 2002-01-10 CN CNB021018235A patent/CN1199866C/zh not_active Expired - Lifetime
- 2002-01-10 JP JP2002003373A patent/JP4153698B2/ja not_active Expired - Lifetime
- 2002-01-10 CA CA002367079A patent/CA2367079A1/en not_active Abandoned
- 2002-01-14 US US10/047,315 patent/US6767529B2/en not_active Expired - Lifetime
- 2002-01-16 BR BR0200104-7A patent/BR0200104A/pt not_active Application Discontinuation
- 2002-01-16 AU AU10186/02A patent/AU1018602A/en not_active Abandoned
- 2002-01-16 MX MXPA02000594A patent/MXPA02000594A/es not_active Application Discontinuation
- 2002-10-30 HK HK02107886.0A patent/HK1046266A1/zh unknown
-
2004
- 2004-06-09 US US10/863,957 patent/US20040219095A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20040219095A1 (en) | 2004-11-04 |
| DE10101769A1 (de) | 2002-07-18 |
| EP1225154A3 (de) | 2003-12-03 |
| CN1365950A (zh) | 2002-08-28 |
| US6767529B2 (en) | 2004-07-27 |
| EP1225154A2 (de) | 2002-07-24 |
| JP2002338249A (ja) | 2002-11-27 |
| AU1018602A (en) | 2002-07-18 |
| EP1225154B1 (de) | 2011-05-18 |
| ES2364629T3 (es) | 2011-09-08 |
| US20020130296A1 (en) | 2002-09-19 |
| ATE509892T1 (de) | 2011-06-15 |
| HK1046266A1 (zh) | 2003-01-03 |
| MXPA02000594A (es) | 2002-11-29 |
| AR032237A1 (es) | 2003-10-29 |
| CA2367079A1 (en) | 2002-07-17 |
| JP4153698B2 (ja) | 2008-09-24 |
| CN1199866C (zh) | 2005-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |