Method for concentrating metal chloride in an iron (III) chloride-containing hydrochloric acid solution and separating it from the solution

摘要

A method for concentrating a metal chloride in an iron (III) chloride-containing hydrochloric acid solution and separating the metal chloride from the solution, wherein iron is precipitated from the solution as iron oxide, preferably hematite, and a filtration device A process is described which is characterized by removing the non-hydrolyzable metal chloride thereby filtered off in at least a part of the hydrochloric acid filtrate after filtering in.