FR2320905A1 - Procede de preparation de spheres de magnetite au moyen d'un appareil de chauffage a arc - Google Patents

Procede de preparation de spheres de magnetite au moyen d'un appareil de chauffage a arc

Info

Publication number
FR2320905A1
FR2320905A1 FR7624104A FR7624104A FR2320905A1 FR 2320905 A1 FR2320905 A1 FR 2320905A1 FR 7624104 A FR7624104 A FR 7624104A FR 7624104 A FR7624104 A FR 7624104A FR 2320905 A1 FR2320905 A1 FR 2320905A1
Authority
FR
France
Prior art keywords
heating apparatus
arc heating
preparing magnetite
spheres
magnetite spheres
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
Application number
FR7624104A
Other languages
English (en)
Other versions
FR2320905B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2320905A1 publication Critical patent/FR2320905A1/fr
Application granted granted Critical
Publication of FR2320905B1 publication Critical patent/FR2320905B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • G11B5/70689—Magnetite
    • 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
    • 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
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/653—Processes involving a melting step
    • 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
    • C01P2004/32—Spheres
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Furnace Details (AREA)
  • Discharge Heating (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
FR7624104A 1975-08-11 1976-08-06 Procede de preparation de spheres de magnetite au moyen d'un appareil de chauffage a arc Granted FR2320905A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60357875A 1975-08-11 1975-08-11

Publications (2)

Publication Number Publication Date
FR2320905A1 true FR2320905A1 (fr) 1977-03-11
FR2320905B1 FR2320905B1 (fr) 1982-12-31

Family

ID=24416039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7624104A Granted FR2320905A1 (fr) 1975-08-11 1976-08-06 Procede de preparation de spheres de magnetite au moyen d'un appareil de chauffage a arc

Country Status (7)

Country Link
US (1) US4071588A (fr)
JP (1) JPS6021926B2 (fr)
CA (1) CA1086914A (fr)
CH (1) CH605415A5 (fr)
DE (1) DE2634617A1 (fr)
FR (1) FR2320905A1 (fr)
GB (1) GB1557729A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411050A1 (fr) * 1977-12-08 1979-07-06 Alusuisse Procede pour donner une forme spherique par fusion a des particules de ferrite

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616348A5 (fr) * 1977-04-29 1980-03-31 Alusuisse
US4162291A (en) * 1977-10-12 1979-07-24 Westinghouse Electric Corp. Liquid silicon casting control mechanism
JPS5820486Y2 (ja) * 1978-02-24 1983-04-28 凸版印刷株式会社 充填ノズル
US4264354A (en) * 1979-07-31 1981-04-28 Cheetham J J Method of making spherical dental alloy powders
JPS58192202U (ja) * 1982-06-16 1983-12-21 須川工業株式会社 粘着性食品の定量取出し機
JPS6111301A (ja) * 1984-06-15 1986-01-18 日本油脂株式会社 油中水型エマルション爆薬を包装機へ供給する装置
JPS6197135A (ja) * 1984-10-16 1986-05-15 Sumitomo Metal Ind Ltd フェライト用酸化鉄の製造方法
US4668853A (en) * 1985-10-31 1987-05-26 Westinghouse Electric Corp. Arc-heated plasma lance
JPH0235601Y2 (fr) * 1986-08-06 1990-09-27
US4864096A (en) * 1987-12-18 1989-09-05 Westinghouse Electric Corp. Transfer arc torch and reactor vessel
JPH0537094U (ja) * 1991-10-23 1993-05-21 四国化工機株式会社 具入り粘性食品の充填装置
US7118728B2 (en) * 2002-05-08 2006-10-10 Steward Advanced Materials, Inc. Method and apparatus for making ferrite material products and products produced thereby
KR102352824B1 (ko) 2017-11-09 2022-01-17 레온 지도키 가부시키가이샤 식품 재료 토출 장치 및 그 운전 방법, 포피 식품 제조 장치
US11167256B2 (en) * 2019-07-01 2021-11-09 Oakwood Laboratories, Llc System and method for making microspheres and emulsions

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197810A (en) * 1961-10-09 1965-08-03 Oesterr Studien Atomenergie Method and an apparatus for manufacturing ball-shaped particles
FR1414352A (fr) * 1963-11-18 1965-10-15 Knapsack Ag Procédé de préparation de magnétite pulvérulente à particules de surface lisse et arrondie
US3708409A (en) * 1969-05-22 1973-01-02 Ionarc Smelters Ltd Chemical process in high enthalpy thermal environment and apparatus therefor
FR2163565A1 (fr) * 1971-12-15 1973-07-27 Westinghouse Electric Corp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749763A (en) * 1971-08-03 1973-07-31 Humphreys Corp Processing of silicate ores and product thereof
GB1493394A (en) * 1974-06-07 1977-11-30 Nat Res Dev Plasma heater assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197810A (en) * 1961-10-09 1965-08-03 Oesterr Studien Atomenergie Method and an apparatus for manufacturing ball-shaped particles
FR1414352A (fr) * 1963-11-18 1965-10-15 Knapsack Ag Procédé de préparation de magnétite pulvérulente à particules de surface lisse et arrondie
US3708409A (en) * 1969-05-22 1973-01-02 Ionarc Smelters Ltd Chemical process in high enthalpy thermal environment and apparatus therefor
FR2163565A1 (fr) * 1971-12-15 1973-07-27 Westinghouse Electric Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411050A1 (fr) * 1977-12-08 1979-07-06 Alusuisse Procede pour donner une forme spherique par fusion a des particules de ferrite

Also Published As

Publication number Publication date
US4071588A (en) 1978-01-31
GB1557729A (en) 1979-12-12
JPS6021926B2 (ja) 1985-05-30
CA1086914A (fr) 1980-10-07
JPS5222600A (en) 1977-02-19
DE2634617A1 (de) 1977-02-17
FR2320905B1 (fr) 1982-12-31
CH605415A5 (fr) 1978-09-29

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Legal Events

Date Code Title Description
ST Notification of lapse