JPS55104923A - Hexagonal flake form iron oxide particle - Google Patents

Hexagonal flake form iron oxide particle

Info

Publication number
JPS55104923A
JPS55104923A JP1209880A JP1209880A JPS55104923A JP S55104923 A JPS55104923 A JP S55104923A JP 1209880 A JP1209880 A JP 1209880A JP 1209880 A JP1209880 A JP 1209880A JP S55104923 A JPS55104923 A JP S55104923A
Authority
JP
Japan
Prior art keywords
iron oxide
oxide particle
flake form
form iron
hexagonal flake
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
JP1209880A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6341853B2 (enExample
Inventor
Furantsu Geruharuto
Funto Furantsu
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of JPS55104923A publication Critical patent/JPS55104923A/ja
Publication of JPS6341853B2 publication Critical patent/JPS6341853B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C09C1/245—Oxides of iron of plate-like shape
    • 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
    • C01G49/06—Ferric oxide [Fe2O3]
    • 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
    • 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
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C01P2004/22—Particle morphology extending in two dimensions, e.g. plate-like with a polygonal circumferential shape
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/62—L* (lightness axis)
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/65—Chroma (C*)
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C01P2006/66—Hue (H*)
    • 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
    • C01P2006/80—Compositional purity
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)
JP1209880A 1979-02-07 1980-02-05 Hexagonal flake form iron oxide particle Granted JPS55104923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792904491 DE2904491A1 (de) 1979-02-07 1979-02-07 Plaettchenfoermige eisenoxidpigmente und verfahren zu deren herstellung sowie deren verwendung

Publications (2)

Publication Number Publication Date
JPS55104923A true JPS55104923A (en) 1980-08-11
JPS6341853B2 JPS6341853B2 (enExample) 1988-08-19

Family

ID=6062304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1209880A Granted JPS55104923A (en) 1979-02-07 1980-02-05 Hexagonal flake form iron oxide particle

Country Status (4)

Country Link
US (1) US4404254A (enExample)
EP (1) EP0014382B1 (enExample)
JP (1) JPS55104923A (enExample)
DE (2) DE2904491A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154318A (en) * 1979-05-16 1980-12-01 Agency Of Ind Science & Technol Manufacture of imbricate iron oxide
JPS63112663A (ja) * 1986-10-24 1988-05-17 バスフ　アクチェンゲゼルシャフト 酸化鉄をベースとする薄板状顔料及びその製法
JPH01304160A (ja) * 1988-05-31 1989-12-07 Toda Kogyo Corp 耐熱性板状タン色系顔料粉末及びその製造法
JPH11240724A (ja) * 1997-11-19 1999-09-07 Bayer Ag 熱に対して安定な酸化鉄黄色顔料
JP2023518997A (ja) * 2020-03-27 2023-05-09 ランクセス・ドイチュランド・ゲーエムベーハー 強く着色されたマンガンフェライト着色顔料

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195329A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57195327A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
DE3124746A1 (de) * 1981-06-24 1983-01-13 Basf Ag, 6700 Ludwigshafen Plaettchenfoermige pigmente der formel al(pfeil abwaerts)x(pfeil abwaerts)fe(pfeil abwaerts)2(pfeil abwaerts)-(pfeil abwaerts)x(pfeil abwaerts)o(pfeil abwaerts)3(pfeil abwaerts), deren herstellung und verwendung
JPS58203625A (ja) * 1982-05-24 1983-11-28 Toshiba Corp 磁気記録媒体
JPS6069822A (ja) * 1983-08-19 1985-04-20 Toshiba Corp 磁気記録媒体
DE3440911C2 (de) * 1984-11-09 1997-08-21 Bayer Ag Verfahren zur Herstellung plättchenförmiger Eisenoxidpigmente
DE3512124A1 (de) * 1985-04-03 1986-10-16 Bayer Ag, 5090 Leverkusen Eisenoxidrotpigmente mit verbesserten koloristischen eigenschaften, verfahren zu deren herstellung sowie ihre verwendung
GB2173811B (en) * 1985-04-05 1988-08-24 Tdk Corp Magnetic recording medium
JPS62128911A (ja) * 1985-11-28 1987-06-11 Daikin Ind Ltd 炭化コバルトを含有する粒子
DE3784085T2 (de) * 1986-03-20 1993-05-27 Hitachi Maxell Magnetischer aufzeichnungstraeger.
GB8625656D0 (en) * 1986-10-27 1986-11-26 British Nuclear Fuels Plc Inorganic ion exchange material
DE3860614D1 (de) * 1987-02-16 1990-10-25 Toda Kogyo Corp Plattenfoermige magnetit- und maghemitpartikeln und verfahren zu deren herstellung.
DE3868089D1 (de) * 1987-03-11 1992-03-12 Tayca Corp Glimmerartige, mit titandioxid ueberzogene eisenoxidpigmente und verfahren zu deren herstellung.
DE3709217A1 (de) * 1987-03-20 1988-09-29 Basf Ag Plaettchenfoermige pigmente auf basis eisenoxid
DE3719804A1 (de) * 1987-06-02 1989-03-16 Basf Ag Verfahren zur herstellung von plaettchenfoermigen zweiphasenpigmenten
EP0306224B1 (en) * 1987-08-28 1991-10-16 Toda Kogyo Corp. Iron oxide pigment showing golden color and process for producing the same
JPH0824894B2 (ja) * 1987-12-07 1996-03-13 トヨタ自動車株式会社 塗装仕上げ方法
JPH0247209A (ja) * 1988-08-04 1990-02-16 Sakai Chem Ind Co Ltd 板状バリウムフエライト微粉末の製造方法
WO1990005367A1 (fr) * 1988-11-08 1990-05-17 Tdk Corporation Poudre magnetique, procede de production, support d'enregistrement magnetique et procede d'enregistrement magnetique
DE3907915A1 (de) * 1989-03-11 1990-09-13 Bayer Ag Feinteilige magnetische hexaferrite mit geringer temperaturabhaengigkeit der koerzitivkraft sowie deren verwendung
EP0401000B1 (en) * 1989-05-31 1995-07-26 Toda Kogyo Corp. Plate-like magnetite particles and process for producing the same
JP2727230B2 (ja) * 1989-06-05 1998-03-11 戸田工業株式会社 塗料組成物
DE3930601A1 (de) * 1989-09-13 1991-03-14 Basf Ag Verfahren zur herstellung von plaettchenfoermigen hematitpigmenten
JP2736691B2 (ja) * 1989-10-11 1998-04-02 戸田工業株式会社 板状マグヘマイト粒子粉末及びその製造法
JP2901697B2 (ja) * 1990-04-18 1999-06-07 戸田工業株式会社 樹脂用耐老化性鉄系着色剤
DE4139052A1 (de) * 1991-11-28 1993-06-03 Bayer Ag Thermostabile eisenoxidpigmente, verfahren zu ihrer herstellung sowie deren verwendung
JP3444919B2 (ja) * 1992-04-18 2003-09-08 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフトング 導電性顔料
US5421878A (en) * 1992-10-23 1995-06-06 Bayer Ag Pure-colored iron oxide direct red pigments, a process for their production and their use
JP3579432B2 (ja) * 1992-12-17 2004-10-20 チタン工業株式会社 光沢顔料およびその製造法
US5496622A (en) * 1993-07-26 1996-03-05 Konica Corporation Magnetic recording medium comprising an underlayer containing α-iron oxide powder and a magnetic layer containing ferromagnetic metallic powder
GB9407512D0 (en) * 1994-04-15 1994-06-08 Ici Plc Catalysts
GB9413602D0 (en) * 1994-07-06 1994-08-24 Johnson Matthey Plc Pigmentary material
US5443628B1 (en) * 1994-08-08 1998-06-09 Videojet Systems Int High temperature jet printing ink
DE19525503A1 (de) 1995-07-13 1997-01-16 Basf Ag Goniochromatische Glanzpigmente auf Basis transparenter, nichtmetallischer, plättchenförmiger Substrate
US5958125A (en) * 1996-07-05 1999-09-28 Schmid; Raimund Goniochromatic luster pigments based on transparent, nonmetallic, platelet-shaped substrates
US6022619A (en) * 1998-01-15 2000-02-08 Kuhn; Hans H. Textile composite with iron oxide film
GB2333518A (en) * 1998-01-26 1999-07-28 Laporte Industries Ltd Process for making black iron oxide pigment
DE19808657A1 (de) 1998-03-02 1999-09-09 Basf Ag Goniochromatische Glanzpigmente auf Basis mehrfach beschichteter Eisenoxidplättchen
ITMO20010232A1 (it) * 2001-11-27 2003-05-27 Franco Ambri Metodo per l'ottenimento di coloranti per la ceramica ed il vetro, particolarmente per supporti e rivestimenti, e coloranti cosi' ottenibili
ES2301364B1 (es) * 2006-05-24 2009-05-01 Fritta, S.L. Formulacion para producir efectos metalicos.
US8511895B2 (en) * 2009-06-26 2013-08-20 Green Bag, Llc Biodegradable lawn waste collection system
DE102010054803A1 (de) 2010-12-16 2012-06-21 Merck Patent Gmbh Pigmentgranulate
CN109072010B (zh) * 2016-06-02 2022-09-23 M技术株式会社 透明材料用紫外线和/或近红外线遮断剂组合物

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891902C (de) * 1939-06-25 1953-10-01 Bayer Ag Verfahren zur Herstellung von braunen Eisenoxydpigmenten
US2558303A (en) * 1947-08-07 1951-06-26 American Cyanamid Co Production of iron oxide pigments
DE1219612B (de) * 1962-10-10 1966-06-23 Bayer Ag Verfahren zur Herstellung von mit transparenten Bindemitteln zu transparent gefaerbten Dispersionen verarbeitbaren, gegebenenfalls ferromagnetischen, im wesentlichen Eisenoxid enthaltenden, temperaturbestaendigen Pigmenten
DE1219009B (de) * 1963-06-26 1966-06-16 Bayer Ag Verfahren zur Herstellung von gamma-FeOOH
DE1191063B (de) * 1963-09-27 1965-04-15 Bayer Ag Verfahren zur Herstellung von manganhaltigen Eisenoxidpigmenten
JPS4829718B1 (enExample) * 1969-11-13 1973-09-12
US3987156A (en) * 1969-11-13 1976-10-19 Agency Of Industrial Science & Technology Method for manufacture of micaceous α-iron oxide
JPS517176B2 (enExample) * 1971-11-12 1976-03-05
JPS549557B2 (enExample) * 1972-09-05 1979-04-25
US3864463A (en) * 1973-05-10 1975-02-04 Du Pont Process for manufacture of alpha Fe{hd 2{b O{HD 3{B platelets
JPS5243480B2 (enExample) * 1973-12-13 1977-10-31
US4108787A (en) * 1974-12-20 1978-08-22 Fuji Photo Film Co., Ltd. Process for producing ferromagnetic iron oxide
DE2537684C3 (de) * 1975-08-23 1980-07-31 Bayer Ag, 5090 Leverkusen Aktive Korrosionsschutzpigmente auf Eisenoxidbasis
DE2633597C2 (de) * 1976-07-27 1983-01-13 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von nadel- bis prismenförmigen ferrimagnetischen Eisenoxidpigmenten zur magnetischen Signalaufzeichnung
US4053325A (en) * 1976-09-14 1977-10-11 Pfizer Inc. Heat stable iron oxides
JPS54151598A (en) * 1978-05-20 1979-11-28 Agency Of Ind Science & Technol Manufacture of plate iron oxide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55154318A (en) * 1979-05-16 1980-12-01 Agency Of Ind Science & Technol Manufacture of imbricate iron oxide
JPS63112663A (ja) * 1986-10-24 1988-05-17 バスフ　アクチェンゲゼルシャフト 酸化鉄をベースとする薄板状顔料及びその製法
JPH01304160A (ja) * 1988-05-31 1989-12-07 Toda Kogyo Corp 耐熱性板状タン色系顔料粉末及びその製造法
JPH11240724A (ja) * 1997-11-19 1999-09-07 Bayer Ag 熱に対して安定な酸化鉄黄色顔料
JP2023518997A (ja) * 2020-03-27 2023-05-09 ランクセス・ドイチュランド・ゲーエムベーハー 強く着色されたマンガンフェライト着色顔料

Also Published As

Publication number Publication date
US4404254A (en) 1983-09-13
JPS6341853B2 (enExample) 1988-08-19
DE2904491A1 (de) 1980-08-21
EP0014382A3 (en) 1980-09-17
EP0014382A2 (de) 1980-08-20
DE3060602D1 (en) 1982-08-19
EP0014382B1 (de) 1982-06-30

Similar Documents

Publication Publication Date Title
GB2064133B (en) Particle shape determination
NZ194065A (en) Hydraulic cement with low particle size
JPS56105410A (en) Reduction of paticulate iron ore to sponge iron particle
AU540674B2 (en) Iron silicate
JPS55104922A (en) Cobalt compounded ferrimagnetic iron oxide and its manufacture
JPS56105401A (en) Magnetic particle protected with chromium oxide
JPS5662912A (en) Reduction of particulate iron ore to sponge iron particle
JPS5655500A (en) Fine particle bleaching composition
JPS5630985A (en) Alkylated diazaaspiroodecanes* its manufacture and its use as photostabilizer
JPS53133582A (en) Compound powder particle and manufacture thereof
AU537482B2 (en) Pelletising siliceous iron ore with mgo
JPS5651457A (en) Antitumoral compound and its manufacture
JPS5641835A (en) Manufacture of needleelike highly magnetic iron particle
AU522889B2 (en) Metallic iron particles
AU537083B2 (en) Iron ore pellets containing coarse ore particles
JPS5647453A (en) Improved paint composition and its manufacture
JPS5687604A (en) Particle coating
GB2065493B (en) Reducing particle loss from fluidsed beds
JPS55137654A (en) Particle detector
AU530658B2 (en) Reduction of iron oxides
JPS5616076A (en) Iron powder dryer
JPS5692125A (en) Yellow iron oxide pigment and its manufacture
GB2017936B (en) Particle size determination
JPS5631084A (en) Dispersing composition
GB2057104B (en) Reducing iron oxide