WERKWIJZE VOOR HET BEREIDEN VAN EEN TITAANDIOXYDE- -CONCENTRAAT UIT EEN IJZERBEVATTEND TITAANMINERAAL.

摘要

A titanium concentrate is made from an ilmenite or other iron-containing titanium ore by treatment with aqueous hydrochloric acid of the azeotropic concentration while maintaining this concentration by continuously removing excess water by distillation. Preferably, when as much iron as practicable or desired has dissolved, the distillate is returned, or water from some other source added, to the mixture, which is then boiled further for a short time under total reflux to precipitate titanium which may have dissolved.