BR0209180A - Processo de fabricação de ìmãs do tipo ferrita - Google Patents

Processo de fabricação de ìmãs do tipo ferrita

Info

Publication number
BR0209180A
BR0209180A BR0209180-1A BR0209180A BR0209180A BR 0209180 A BR0209180 A BR 0209180A BR 0209180 A BR0209180 A BR 0209180A BR 0209180 A BR0209180 A BR 0209180A
Authority
BR
Brazil
Prior art keywords
raw materials
mixture
main
raw material
clinker
Prior art date
Application number
BR0209180-1A
Other languages
English (en)
Inventor
Antoine Morel
Philippe Tenaud
Original Assignee
Ugimag Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ugimag Sa filed Critical Ugimag Sa
Publication of BR0209180A publication Critical patent/BR0209180A/pt

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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
    • H01F1/032—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 hard-magnetic materials
    • H01F1/10—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 hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0036—Mixed oxides or hydroxides containing one alkaline earth metal, magnesium or lead
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0063—Mixed oxides or hydroxides containing zinc
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0072—Mixed oxides or hydroxides containing manganese
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/009—Compounds containing, besides iron, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G51/00—Compounds of cobalt
    • C01G51/006—Compounds containing, besides cobalt, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2641—Compositions containing one or more ferrites of the group comprising rare earth metals and one or more ferrites of the group comprising alkali metals, alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • 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
    • C01P2006/12—Surface area
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

"PROCESSO DE FABRICAçãO DE ìMãS DO TIPO FERRITA". A presente invenção refere-se ao processo de fabricação de ímãs permanentes de tipo ferrita de fórmula M~ 1-x~ R~ x~ Fe~ 12-y~ T~ y~ O~ 19~ no qual: a) forma-se uma mistura MP das matérias-primas PM~ M~, PM~ F~, PM~ R~ e MP~ T~ relativas respectivamente aos elementos M, R, Fe e T, a matéria-prima MP~ F~ relativa ao elemento Fe, tipicamente o óxido de ferro Fe~ 2~O~ 3~, e a matéria-prima MP~ M~ constituindo as matérias-primas ditas principais, as matérias-primas PM~ R~ e MP~ T~ constituindo matérias-primas MP~ S~ ditas de substituição, b) calcina-se a dita mistura para formar um clínquer B, c) efetua-se uma trituração úmida do dito clínquer, d) concentra-se e compacta-se as ditas partículas sob campo magnético orientador para formar um compacto a verde D, anisotrópico, manipulável e de forma predeterminada, e) sintetiza-se o dito compacto a verde D anisotrópico para obter um elemento sintetizado E. O processo é caracterizado pelo fato de que, na mistura MP na etapa a), pelo menos uma das matérias-primas de substituição PM~ R~ ou MP~ T~ apresenta uma granulometria G~ R~, tipicamente medida pela superfície específica BET em m^ 2^/g e anotada especificamente G~ R~ ou G~ T~ para, respectivamente, as matérias-primas de substituição MP~ R~ ou MP~ T~, escolhida em função da granulometria G~ F~ da matéria-prima principal MP~ F~ e em função da porcentagem mássica % S da dita matéria-prima de substituição PM~ S~ em relação à dita matéria-prima principal MP~ F~. São obtidos, desse modo, ímãs com caráter quadrado e com índice de desempenho global elevado.
BR0209180-1A 2001-04-25 2002-04-23 Processo de fabricação de ìmãs do tipo ferrita BR0209180A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0105569A FR2824178B1 (fr) 2001-04-25 2001-04-25 Procede de fabrication d'aimants du type ferrite
PCT/FR2002/001378 WO2002085810A1 (fr) 2001-04-25 2002-04-23 Procede de fabrication d'aimants du type ferrite

Publications (1)

Publication Number Publication Date
BR0209180A true BR0209180A (pt) 2004-08-03

Family

ID=8862678

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0209180-1A BR0209180A (pt) 2001-04-25 2002-04-23 Processo de fabricação de ìmãs do tipo ferrita

Country Status (9)

Country Link
US (1) US6811718B2 (pt)
EP (1) EP1381578A1 (pt)
JP (1) JP3990291B2 (pt)
KR (1) KR100870690B1 (pt)
CN (1) CN1330605C (pt)
BR (1) BR0209180A (pt)
FR (1) FR2824178B1 (pt)
MX (1) MXPA03009726A (pt)
WO (1) WO2002085810A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1937121B (zh) * 2006-09-21 2010-04-14 上海大学 复相纳米晶永磁铁氧体材料的制备方法
KR101082389B1 (ko) 2011-05-31 2011-11-11 쌍용머티리얼 주식회사 마그네토플럼바이트형 페라이트 자성재료 및 이로부터 유도된 세그멘트형 영구자석
CN102731080B (zh) * 2012-07-13 2014-03-12 当涂县海川磁性材料有限公司 一种制备铁氧体磁性材料用的粉料加工方法
WO2016033563A1 (en) 2014-08-29 2016-03-03 Ecolab Usa Inc. Solid rinse aid composition comprising polyacrylic acid
CN104446412A (zh) * 2014-11-14 2015-03-25 连云港市兆昱新材料实业有限公司 一种基于钕铁硼废料生产的高性能永磁铁氧体预烧料及制备方法
CN115215643A (zh) * 2022-07-21 2022-10-21 成都信息工程大学 一种Nd-Co共取代M型锶铁氧体及其制备方法
CN115974258B (zh) * 2023-01-10 2023-10-17 安徽工业大学 一种去除水体中腐殖酸的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69824362T2 (de) * 1997-02-25 2005-06-16 Tdk Corp. Magnetisches Oxidmaterial, Ferritteilchen, gesinterter Magnet, Verbundmagnet, magnetischer Aufzeichnungsträger und Motor
FR2785281B1 (fr) * 1999-07-05 2001-04-27 Ugimag Sa Procede de fabrication de poudres ou biscuits d'hexaferrites de type m
FR2784498B1 (fr) * 1999-11-30 2001-10-12 Ugimag Sa Procede de fabrication d'aimants du type ferrite

Also Published As

Publication number Publication date
WO2002085810A1 (fr) 2002-10-31
KR100870690B1 (ko) 2008-11-27
JP2004532524A (ja) 2004-10-21
US6811718B2 (en) 2004-11-02
EP1381578A1 (fr) 2004-01-21
KR20040023795A (ko) 2004-03-19
CN1561316A (zh) 2005-01-05
JP3990291B2 (ja) 2007-10-10
FR2824178B1 (fr) 2003-05-30
CN1330605C (zh) 2007-08-08
FR2824178A1 (fr) 2002-10-31
US20030052300A1 (en) 2003-03-20
MXPA03009726A (es) 2004-01-29

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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