Process for making iron oxide of controlled particle size

Details Process for making iron oxide of controlled particle size Process for making iron oxide of controlled particle size

1978-06-23

1980-05-06

Gantz, Delbert E.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423634, C01G 4902

Patent

active

042017610

ABSTRACT:
A process for preparing iron oxide with a controlled purity and large particle size which comprises oxidizing at a constant pH a vigorously agitated aqueous suspension of iron oxide crystals while continuously, but slowly adding a water soluble iron solution and continuously withdrawing a portion of the aqueous solution containing large size iron oxide crystals as product.

REFERENCES:
patent: 3082067 (1963-03-01), Hund
patent: 3931025 (1976-01-01), Woditsch et al.

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