Method for manufacture of iron oxide flakes

Details Method for manufacture of iron oxide flakes Method for manufacture of iron oxide flakes

1979-03-15

1980-11-11

Cooper, Jack

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

23300, 23305F, 106304, 423266, 423275, C01G 4906

Patent

active

042332834

ABSTRACT:
In the manufacture of iron oxide flakes by the steps of mixing an aqueous ferric salt solution with an aqueous alkali solution for thereby inducing an amorphous precipitate and subjecting the precipitate to a hydrothermal treatment, iron oxide flakes of an increased flake size are obtained by adding boric acid or a salt thereof to the mixture prior to the step of hydrothermal treatment.

REFERENCES:
patent: 2989411 (1961-06-01), Suchow
patent: 3087829 (1963-04-01), Linton
patent: 3382174 (1968-05-01), Hund

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