NL6816682A - Permanently magnetisable substance - Google Patents

Permanently magnetisable substance

Info

Publication number
NL6816682A
NL6816682A NL6816682A NL6816682A NL6816682A NL 6816682 A NL6816682 A NL 6816682A NL 6816682 A NL6816682 A NL 6816682A NL 6816682 A NL6816682 A NL 6816682A NL 6816682 A NL6816682 A NL 6816682A
Authority
NL
Netherlands
Prior art keywords
carrier
loaded
magnetisable substance
permanently magnetisable
iron
Prior art date
Application number
NL6816682A
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 GB1229441D priority Critical patent/GB1229441A/en
Priority to DE19681767918 priority patent/DE1767918A1/en
Priority to FR1577555D priority patent/FR1577555A/fr
Priority to CH1001368A priority patent/CH528135A/en
Priority to BE717597D priority patent/BE717597A/fr
Priority to NO269668A priority patent/NO118973B/no
Priority to ES355781A priority patent/ES355781A1/en
Priority to JP43047452A priority patent/JPS514960B1/ja
Application filed filed Critical
Priority to NL6816682A priority patent/NL6816682A/en
Priority to DE19696900264 priority patent/DE6900264U/en
Priority to DE19691917644 priority patent/DE1917644A1/en
Priority to BE731186D priority patent/BE731186A/xx
Priority to SE05023/69A priority patent/SE352767B/xx
Priority to GB08245/69A priority patent/GB1261399A/en
Priority to FR6910908A priority patent/FR2005878A1/fr
Priority to CH1712369A priority patent/CH546712A/en
Priority to AT1081369A priority patent/AT295175B/en
Priority to GB56715/69A priority patent/GB1291064A/en
Priority to ES373717A priority patent/ES373717A1/en
Priority to BE742017D priority patent/BE742017A/xx
Priority to FR6940166A priority patent/FR2030660A5/fr
Priority to JP44093548A priority patent/JPS4912959B1/ja
Priority to DK619869AA priority patent/DK134932B/en
Priority to DE1958606A priority patent/DE1958606C3/en
Priority to SE16062/69A priority patent/SE352978B/xx
Priority to GB1295440D priority patent/GB1295440A/en
Priority to CH1886869A priority patent/CH558980A/en
Priority to ES374722A priority patent/ES374722A2/en
Priority to JP44102388A priority patent/JPS526958B1/ja
Priority to DE19691963828 priority patent/DE1963828A1/en
Priority to BE743394D priority patent/BE743394A/xx
Priority to FR6944049A priority patent/FR2026578A6/fr
Priority to AT1186469A priority patent/AT297660B/en
Publication of NL6816682A publication Critical patent/NL6816682A/en

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
    • H01F1/01—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
    • H01F1/04—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 metals or alloys
    • H01F1/06—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 metals or alloys in the form of particles, e.g. powder
    • H01F1/063—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 metals or alloys in the form of particles, e.g. powder with a non magnetic core
    • 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
    • H01F1/111—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 with a non-magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Catalysts (AREA)

Abstract

Iron oxide is (co)precipitated, on a suspended carrier, from a solution containing divalent iron and opt. other divalent metal(s) (Co, Ni) by gradually and homogeneously converting the Fe++ at pH 2-6.5 under controlled temp. conditions into trivalent form and then collecting the loaded carrier, followed by washing, drying and heating if necessary. This method allows a much smoother, more even preparation, the carrier can be more heavily loaded (permitting higher magnetization), and filtration is particularly easy.
NL6816682A 1967-07-06 1968-11-21 Permanently magnetisable substance NL6816682A (en)

Priority Applications (33)

Application Number Priority Date Filing Date Title
GB1229441D GB1229441A (en) 1967-07-06 1968-06-28
DE19681767918 DE1767918A1 (en) 1967-07-06 1968-07-02 Process for the production of a deposit of permanently magnetizable oxides or mixed oxides
FR1577555D FR1577555A (en) 1967-07-06 1968-07-03
CH1001368A CH528135A (en) 1967-07-06 1968-07-04 Process for the production of a deposit of permanently magnetisable oxides or mixed oxides, then produced permanently magnetisable oxide or mixed oxide and its use for the production of ferromagnetic bodies
BE717597D BE717597A (en) 1967-07-06 1968-07-04
ES355781A ES355781A1 (en) 1967-07-06 1968-07-05 A procedure for the preparation of a permanently magnetizable oxidis or mixed oxides. (Machine-translation by Google Translate, not legally binding)
NO269668A NO118973B (en) 1967-07-06 1968-07-05
JP43047452A JPS514960B1 (en) 1967-07-06 1968-07-06
NL6816682A NL6816682A (en) 1968-11-21 1968-11-21 Permanently magnetisable substance
DE19696900264 DE6900264U (en) 1968-01-06 1969-01-04 CARRIER FOR MAGNETIC RECORDING AND REPLAY OF INFORMATION
DE19691917644 DE1917644A1 (en) 1968-01-06 1969-04-05 Process for the production of plates, tapes or molded bodies containing permanently magnetizable particles for the magnetic storage of information
BE731186D BE731186A (en) 1968-01-06 1969-04-08
SE05023/69A SE352767B (en) 1968-01-06 1969-04-09
GB08245/69A GB1261399A (en) 1968-01-06 1969-04-09 Process for preparing supported permanently-magnetizable metals or alloys
FR6910908A FR2005878A1 (en) 1968-01-06 1969-04-09
CH1712369A CH546712A (en) 1968-01-06 1969-11-18 METHOD FOR MANUFACTURING A PERMANENTLY MAGNETIZABLE MATERIAL.
AT1081369A AT295175B (en) 1968-01-06 1969-11-19 Process for the production of a permanently magnetizable material
GB56715/69A GB1291064A (en) 1968-01-06 1969-11-19 Permanently magnetizable material
ES373717A ES373717A1 (en) 1968-01-06 1969-11-20 Process for preparing supported permanently-magnetizable metals or alloys
BE742017D BE742017A (en) 1968-01-06 1969-11-21
FR6940166A FR2030660A5 (en) 1968-01-06 1969-11-21
JP44093548A JPS4912959B1 (en) 1968-01-06 1969-11-21
DK619869AA DK134932B (en) 1968-01-06 1969-11-21 Process for the preparation of an iron-containing, permanently magnetizable material with simultaneous precipitation of iron oxide in the form of ferric oxide and a divalent metal from an aqueous solution thereof on a carrier suspended in the solution.
DE1958606A DE1958606C3 (en) 1968-01-06 1969-11-21 Process for the production of a ferrous permanently magnetizable material
SE16062/69A SE352978B (en) 1968-01-06 1969-11-21
GB1295440D GB1295440A (en) 1968-01-06 1969-12-17
CH1886869A CH558980A (en) 1968-01-06 1969-12-18 METHOD FOR MANUFACTURING FERROMAGNETIC MATERIAL.
ES374722A ES374722A2 (en) 1968-01-06 1969-12-19 Process for preparing supported permanently-magnetizable metals or alloys
JP44102388A JPS526958B1 (en) 1968-01-06 1969-12-19
DE19691963828 DE1963828A1 (en) 1968-01-06 1969-12-19 Process for the production of ferromagnetic material
BE743394D BE743394A (en) 1968-01-06 1969-12-19
FR6944049A FR2026578A6 (en) 1968-01-06 1969-12-19
AT1186469A AT297660B (en) 1968-01-06 1969-12-19 Process for the production of tapes, plates, wires or moldings with a content of magnetically active material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6816682A NL6816682A (en) 1968-11-21 1968-11-21 Permanently magnetisable substance

Publications (1)

Publication Number Publication Date
NL6816682A true NL6816682A (en) 1970-05-25

Family

ID=19805227

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6816682A NL6816682A (en) 1967-07-06 1968-11-21 Permanently magnetisable substance

Country Status (1)

Country Link
NL (1) NL6816682A (en)

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Legal Events

Date Code Title Description
BV The patent application has lapsed