Compositions – Magnetic – Free metal or alloy containing
Patent
1985-08-07
1987-06-02
Cooper, Jack
Compositions
Magnetic
Free metal or alloy containing
252 6251, 252 6256, C01G 37027
Patent
active
046701770
ABSTRACT:
Ferromagnetic chromium dioxide is prepared by converting oxides of trivalent and hexavalent chromium under superatmospheric pressure and at elevated temperatures in the presence of water and with the addition of an antimony compound as a modifier and, if required, further additives in an amount of not more than 15% by weight, by a method in which the antimony compound is present in the form of a water-soluble salt whose anion contains one or more organic molecular moieties which are oxidized in concentrated chromic acid.
REFERENCES:
patent: 3034988 (1962-05-01), Ingraham et al.
patent: 3278263 (1966-10-01), Cox
patent: 3449073 (1969-06-01), Balthis, Jr. et al.
patent: 3687851 (1972-08-01), Hartmann et al.
patent: 3778373 (1973-12-01), Robbins
patent: 4340494 (1982-07-01), Ohlinger et al.
patent: 4524008 (1985-06-01), Chen
Mueller Norbert
Ohlinger Manfred
Rudolf Peter
Wettstein Eugen
BASF - Aktiengesellschaft
Cooper Jack
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