Process for preparing potassium ferrate (K.sub.2 FeO.sub.4)

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal

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423179, 423275, 423594, C01G 4900

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044055730

ABSTRACT:
Disclosed is a process for making potassium ferrate (K.sub.2 FeO.sub.4) by reacting substantially pure KOH, C1.sub.2, and a ferric salt in the presence of a stabilizing proportion of at least one ferrate-stabilizing compound (e.g., a combination of an alkali metal silicate and an alkali metal iodine-containing salt). The formed K.sub.2 FeO.sub.4 is separated and recovered from other reaction co-products [KCl, H.sub.2 O, KOCl, and Fe(OH).sub.3 ] and excess KOH. Other specific improvements include the following:

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