Process for producing acicular goethite

Details Process for producing acicular goethite Process for producing acicular goethite

1979-09-20

1981-02-17

Cooper, Jack

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

252 6256, 423633, 423634, C01G 4902

Patent

active

042515041

ABSTRACT:
An alkali hydroxide is added to an aqueous solution of ferrous salt to form a precipitate and a part of the solution is separated to control a ratio of an anion to a ferrous component to less than 1 and the ferrous component is oxidized to acicular goethite by bubbling air through the supernatant and precipitate.

REFERENCES:
patent: 2558304 (1951-06-01), Marcot et al.
patent: 4060596 (1977-11-01), Nakamura
patent: 4136158 (1979-01-01), Okuda et al.

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