Process for producing alkali metal ferrates utilizing hematite a

Details Process for producing alkali metal ferrates utilizing hematite a Process for producing alkali metal ferrates utilizing hematite a

1984-03-16

1985-10-08

Carter, H. T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C01G 4900

Patent

active

045459746

ABSTRACT:
Alkali metal iron (IV) and iron (VI) ferrates are produced by forming a particulate mixture of reactants including an alkali metal nitrogen oxygen compound and an iron material selected from the group of iron oxide, Fe.sub.2 O.sub.3, Fe.sub.3 O.sub.4 and an iron compound which self-reacts at a temperature less than about 1100.degree. C. to form Fe.sub.2 O.sub.3. The mixture of reactants is subjected to a predetermined elevated temperature for a predetermined time duration sufficient to bring about a reaction between the reactants which produces at least one of iron (IV) and iron (VI) ferrates. The molar ratio of alkali metal nitrogen oxygen compound to the iron material is preferably in the range extending between about 4:1 and about 8:1.

REFERENCES:
patent: 2835553 (1958-05-01), Harrison et al.
Bailar et al, "Comprehensive Inorganic Chemistry", Pergamon Press, N.Y., vol. 3, 1973.

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