A method for the production of titanium and / or zirconium oxide under the simultaneous recovery of phosphorus and metallic titanium and / or zirconium

摘要

A method of treating a titanium or zirconium salt of a phosphorus oxyacid, which comprises heating a mixture of carbon and a titanium or zirconium salt of a phosphorus oxyacid at a temperature exceeding 900 DEG C. in a non-oxidizing atmosphere or heating a titanium or zirconium salt of a phosphorus oxyacid at a temperature exceeding 900 DEG C. in absence of carbon in a carbon monoxide atmosphere, thereby separating the phosphorus oxyacid component as phosphorus vapor and recovering the titanium or zirconium component as solid residue.