Process for making manganese dioxide

Details Process for making manganese dioxide Process for making manganese dioxide

1975-04-23

1977-02-01

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 4502

Patent

active

040062171

ABSTRACT:
Manganese dioxide is prepared from a manganese (III)-containing oxide by disproportionating the latter with a perhalo acid to yield both manganese dioxide and a solution containing manganese (II) ions, and, if desired, removing the manganese dioxide precipitate from the manganese (II) ion solution. The manganese (II) solution wherein the manganese exists as a manganese (II) perhalate can then be quantitatively oxidized to manganese dioxide by ozone.

REFERENCES:
patent: 1330738 (1920-02-01), Ellis et al.
patent: 1358626 (1920-11-01), Ellis
patent: 3702889 (1972-11-01), Goldman
Beleu et al., "Chemistry and Industry (London)", Nov. 18, 1967, pp. 1958-1959.
Smith, "Talanta", vol. 15, 1968, pp. 489-496.
Gmelin Band Sauerstoff, 8 Aufl., Lieferung 4, Seite 1181.

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