PROCESS FOR THE EXTRACTION OF RECOVERABLE ELEMENTS CONTAINED IN A RESIDUE CONTAINING TITANIUM IN THE SULPHATE STATE

摘要

Process for extracting valuable elements from industrial residues containing titanium in the form of sulphate and which may contain sulphates of other elements, characterized in that the solid starting material is suspended in an aqueous liquid, in kaolin is added and then the solution thus obtained is heated between 80 degrees C and 160 degrees C for a period of 0.5 to 6 hours, after which the residual solution is separated, the elements of which are recoverable and the precipitate which contains the recoverable elements. /P P The process thus described makes it possible to recover titanium in the form of a hydrated oxide as well as other elements such as iron, ammonium, etc.