BASIC FERRIC ACETATE PREPARATION METHOD Russian patent published in 2006 - IPC C07C53/10 C07F15/02 

FIELD: industrial inorganic synthesis.

SUBSTANCE: implementation of the method comprises contacting iron in the form of iron powder or iron sidewall adjacent to a body with glacial acetic acid and air oxygen at 17-25°C and vigorous stirring effected by high-speed blade-type mechanical stirrer. Initial acetic acid-to-iron molar ratio is (224÷274):100. Acetic anhydride additive is preferably introduced in amount of 2% based on the initial concentration of acetic acid. When concentration of ferric salt in the mixture reaches 2.70-3.51 mole/kg, stirring is stopped and heavy unreacted iron particles are allowed to settle/ Major mass of product suspension is filtered off and thus obtained basic ferric acetate precipitate is dried. Filtrate, which is saturated acetic acid solution of basic ferric acetate, is returned into reactor to be reprocessed. Yield of desired product achieves 99.2-99.3%.

EFFECT: simplified process and improved economical efficiency due to utilization of inexpensive raw material and accessible oxidant.

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