Process for the production of manganese dioxide

Details Process for the production of manganese dioxide Process for the production of manganese dioxide

1985-06-27

1986-05-20

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

429224, C01G 4502

Patent

active

045900590

ABSTRACT:
Manganese dioxide is produced from manganous salts by mixing a manganous salt with an alkali metal permanganate and/or ammonium permanganate followed by heating such mixture to about 150.degree. C. under an oxygen-containing atmosphere until at least 85% of the manganous salt is converted to manganese dioxide and then further elevating the temperature to about 250.degree. C. and maintaining this temperature until the surface area of the manganese dioxide is between about 3 square meters per gram and about 12 square meters per gram.

REFERENCES:
patent: 1078788 (1913-11-01), Kaplan
patent: 1184854 (1916-05-01), Holmes
patent: 4476104 (1984-10-01), Mellors
Advanced Inorganic Chemistry, F. A. Cotton and G. Wilkinson (3rd Ed. 1972) p. 852.

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