IRON CHLORIDE SOLUTION, AND METHOD FOR PRODUCING IRON OXIDE

摘要

PROBLEM TO BE SOLVED: To provide an iron chloride solution obtaining iron oxide for vivid red pigment even by a spray roasting process, and to provide a method for producing the iron oxide. SOLUTION: Regarding the method for producing a ferrous chloride solution, a ferrous chloride solution, in which the content of Fe in a solute is≥99.0 mass% expressed in terms of iron oxide (Fe2O3), is oxidized at a pH of≤6 so as to produce water-containing iron oxide (FeOOH) or magnetite (Fe3O4), and the water-containing iron oxide or magnetite is cleaned and dehydrated, and is thereafter dissolved into hydrochloric acid. COPYRIGHT: (C)2009,JPO&INPIT