Process for preparing high purity Mn.sub.3 O.sub.4

Details Process for preparing high purity Mn.sub.3 O.sub.4 Process for preparing high purity Mn.sub.3 O.sub.4

1987-06-15

1989-03-14

Doll, John

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423 50, C01G 4502

Patent

active

048123021

ABSTRACT:
A process for the preparation of high purity manganous-manganic oxide (Mn.sub.3 O.sub.4) is provided, wherein particulate manganese metal suspended in an aqueous solution containing a water soluble ammonium salt is oxidized in the presence of an oxidizing agent at a temperature of at least 30.degree. C.

REFERENCES:
patent: 3715764 (1973-02-01), Chu
patent: 3767780 (1973-10-01), Bellas et al.
patent: 4137291 (1979-01-01), Cardwell et al.
patent: 4411878 (1983-10-01), Welsh
Chemistry, Bailar, Jr. et al., Academic Press, 1978, pp. 419-420.
A Comprehensive Treatise on Inorganic and Theoretical Chemistry, Mellor, Longmans, Green and Co., 1932, vol. XII, pp. 186-187, 231-232.
Kirk-Othmer Encyclopedia of Chemical Technology, 2nd ed., vol. 13, pp. 17-18.

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