Method for Separating Iron from aqueous solution.

摘要

Bivalent iron in the form of a hematite is separated from an aqueous solution, for example a sulfate solution of pH 2.5-4.5, by passing the solution through a tubular reactor, in which a temperature of approximately 170 ° C is maintained and in which an oxidizing gas is injected at multiple injection points arranged along a reactor, so as to oxidize the iron gradually as the solution progresses in the reactor, the hematite precipitate obtained, is well filtered.