Compositions – Magnetic – Iron-oxygen compound containing
Patent
1988-04-18
1991-09-10
Cooper, Jack
Compositions
Magnetic
Iron-oxygen compound containing
C04B 3500, C01G 4906
Patent
active
050471619
ABSTRACT:
Isometric cobalt- and titanium-containing magnetic iron oxides are prepared by reacting acicular iron(III) oxide hydroxides with compounds of divalent cobalt and iron and compounds of tetravalent titanium in aqueous alkaline suspension at elevated temperature.
REFERENCES:
patent: 3912646 (1975-10-01), Leitner et al.
patent: 4115106 (1978-09-01), Snavely et al.
Hattori et al "Joint Intermag-MMM Conference" (Jul., 1979).
Hibst Hartmut
Jakusch Helmut
Steck Werner
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