Preparation of ferromagnetic chromium dioxide

Details Preparation of ferromagnetic chromium dioxide Preparation of ferromagnetic chromium dioxide

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

Affiliated with

Also associated with

Rating

Preparation of ferromagnetic chromium dioxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of ferromagnetic chromium dioxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of ferromagnetic chromium dioxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-611997