DE1262986B - Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche - Google Patents

Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche

Info

Publication number
DE1262986B
DE1262986B DEK51396A DEK0051396A DE1262986B DE 1262986 B DE1262986 B DE 1262986B DE K51396 A DEK51396 A DE K51396A DE K0051396 A DEK0051396 A DE K0051396A DE 1262986 B DE1262986 B DE 1262986B
Authority
DE
Germany
Prior art keywords
magnetite
atomized
smooth
weight
production
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
Application number
DEK51396A
Other languages
German (de)
English (en)
Inventor
Dipl-Chem Dr Klaus Feldmann
Dipl-Chem Dr Wilfried Gerhardt
Dipl-Chem Dr Heinz Harnisch
Dipl-Chem Dr Joachim Kandler
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.)
Knapsack AG
Original Assignee
Knapsack 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
Priority to GB1050495D priority Critical patent/GB1050495A/en
Application filed by Knapsack AG filed Critical Knapsack AG
Priority to DEK51396A priority patent/DE1262986B/de
Priority to CH1359864A priority patent/CH487076A/de
Priority to BE655786D priority patent/BE655786A/xx
Priority to FR995024A priority patent/FR1414352A/fr
Priority to US411927A priority patent/US3309435A/en
Priority to AT970364A priority patent/AT249639B/de
Publication of DE1262986B publication Critical patent/DE1262986B/de
Pending legal-status Critical Current

Links

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
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/445—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a compound, e.g. Fe3O4
    • 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]
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/40—Arrangements for supplying or controlling air or other gases for drying solid materials or objects using gases other than air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/10—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
    • F26B3/12—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions
    • 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
    • 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
    • H01F1/11—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 in the form of particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • 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
    • C01P2006/10—Solid density
    • 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Compounds Of Iron (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Hard Magnetic Materials (AREA)
DEK51396A 1963-11-18 1963-11-18 Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche Pending DE1262986B (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1050495D GB1050495A (https=) 1963-11-18
DEK51396A DE1262986B (de) 1963-11-18 1963-11-18 Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche
CH1359864A CH487076A (de) 1963-11-18 1964-10-21 Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberfläche
BE655786D BE655786A (https=) 1963-11-18 1964-11-16
FR995024A FR1414352A (fr) 1963-11-18 1964-11-16 Procédé de préparation de magnétite pulvérulente à particules de surface lisse et arrondie
US411927A US3309435A (en) 1963-11-18 1964-11-17 Process for the manufacture of rounded powdered magnetite particles
AT970364A AT249639B (de) 1963-11-18 1964-11-17 Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberfläche

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK51396A DE1262986B (de) 1963-11-18 1963-11-18 Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche

Publications (1)

Publication Number Publication Date
DE1262986B true DE1262986B (de) 1968-03-14

Family

ID=7225973

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK51396A Pending DE1262986B (de) 1963-11-18 1963-11-18 Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche

Country Status (6)

Country Link
US (1) US3309435A (https=)
AT (1) AT249639B (https=)
BE (1) BE655786A (https=)
CH (1) CH487076A (https=)
DE (1) DE1262986B (https=)
GB (1) GB1050495A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010539A1 (en) * 1994-10-04 1996-04-11 The Australian National University Preparation of metal oxide powders using activated ball milling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113587624B (zh) * 2021-07-29 2022-07-12 泰和县鹏翔挂车制造有限公司 一种焊剂烘干机

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704599A (en) * 1926-05-08 1929-03-05 Metallgesellschaft Ag Disintegrated alumina
US2878518A (en) * 1955-03-12 1959-03-24 Knapsack Ag Process for preparing ferrosilicon particles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010539A1 (en) * 1994-10-04 1996-04-11 The Australian National University Preparation of metal oxide powders using activated ball milling

Also Published As

Publication number Publication date
US3309435A (en) 1967-03-14
AT249639B (de) 1966-09-26
GB1050495A (https=)
BE655786A (https=) 1965-03-16
CH487076A (de) 1970-03-15

Similar Documents

Publication Publication Date Title
DE2440205A1 (de) Verfahren zur herabsetzung des schwefelgehalts von geschmolzenem eisen
DE2625939C2 (de) Mischung zum Modifizieren des eutektischen Bestandteils von eutektischen und untereutektischen Aluminium-Silizium-Gußlegierungen
AT396784B (de) Verfahren und gemisch zum formen einer zusammenhängenden feuerfest-masse auf einer oberfläche
DE2505934A1 (de) Dentalamalgam und verfahren zu dessen herstellung
DE2924896C2 (https=)
EP0360223A2 (de) Mittel zur Entschwefelung von Eisenschmelzen und ein Verfahren zur Herstellung des Mittels sowie ein Verfahren zur Entschwefelung von Eisenschmelzen mit dem Mittel
DE1254129B (de) Verfahren zur Herstellung fester Partikel fuer Schwertrueben
DE2631906C2 (de) Metallpulvermischung zur Herstellung von Zahnamalgam durch Verreiben mit Quecksilber
DE3003915A1 (de) Verfahren zum herstellen von stahl
DE2553420A1 (de) Verfahren zur herstellung einer immersionsduese (eintauchduese) und eines langen spunds zum kontinuierlichen giessen von stahl
DE2821407C2 (de) Molybdän-Titan-Zirkonium-Aluminium-Vorlegierungen
DE1262986B (de) Verfahren zur Herstellung von Magnetit in Pulverform mit glatter und abgerundeter Oberflaeche
DE2913207A1 (de) Kalkhaltiges mittel zum behandeln von eisenschmelzen
DE1483688B2 (de) Verfahren zur pulvermetallurgischen Herstellung poröser Aluminiumlegierungsgegenstände
DE2248128C2 (de) Erschmolzene feuerfeste Gußmasse und deren Verwendung
DE2123313B2 (de) Verfahren zur herstellung von huettenkoks
DE3238240C2 (https=)
DE4033182C2 (https=)
DE1571672C3 (https=)
DE2346778A1 (de) Flussmittel zum giessen von stahl
DE2013038B2 (de) Verfahren zur herstellung von kupfer oder silber enthaltenden wolfram- oder molybdaen-pulvermischungen
DE1282867B (de) Verfahren zur Herstellung von Ferrophosphorpulver
DD149796A5 (de) Neuer bleizusatz und sein herstellungsverfahren
DE1467737A1 (de) Metallothermisches Gemisch
DE3544562C2 (de) Feinkörniges Mittel zur Entschwefelung von Eisenschmelzen