A method for manufacturing titanium oxide.

摘要

The invention relates to a method for manufacturing titanium oxide. In the method of the invention a sulfuric acid solution containing predominantly titanium ion together with one or more kinds of metal ions is brought into contact with an organic solvent. That solvent is one containing one or more species selected from oxygen-containing organic solvents, alkyl amines, and alkyl aryl amines and is used to extract the titanium ions in the form of a sulfuric acid complex from the sulfuric acid solution. Thereafter, the organic solvent containing the extracted titanium is brought into contact with water or a dilute aqueous sulfuric acid solution inversely to extract the titanium from the organic solvent into the water or the dilute sulfuric acid solution and to regenerate the organic solvent.