Title:
Process for the preparation of finely divided ferromagnetic ferric oxide
United States Patent 2950955
Inventors:
Ernst, Wagner
Publication Date:
08/30/1960
Export Citation:
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Assignee:
Degussa
Primary Class:
423/634
Other Classes:
423/152, G9B/5.261, G9B/5.262
International Classes:
C01G49/06; G11B5/706
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US Patent References:
2635946Process and apparatus for the production of finely divided metallic oxides useful as pigments
1992685Production of ferric oxide by burning ferric chloride
1850286Process for making finely divided metal oxides
1816388Method of producing finely divided metal oxides
Foreign References:
GB677878A
GB726250A