Studies on the Analysis of Crude Metallic Titanium

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Crude titanium metal contains titanium carbide, nitride, and dioxide, together with a small amount of impurities such as iron, aluminium, silicon, manganese, and magnesium. The determinations of those were attempted. In the determination of metallic titanium, the heating of the metal in oxygen stream resulted in the oxidations of metallic titanium, carbide and nitride, and the amount of the carbide and nitride could be obtained from the determination of carbon and nitrogen. By correcting those values, the amount of metallic titanium is calculated Titanium carbide was determined by the usual method of carbon determination, and the determination of titanium nitride was submitted to the Kjeldahl method after dissolving in sulfuric acid. Titanium dioxide can be determined from the residue obtained by the chlorine method and also by calculation, subtracting the amount of titanium in metallic titanium, titanium carbide, and titanium nitride from the total amount of titanium. Silicon was determined by the gravimetric method and iron by colorimetry of the thiocyanate. Aluminium was determined gravimetrically by the oxine method, and manganese by colorimetry after it was dissolved in sulfuric acid and oxidized with silver nitrate and ammonium persulfate. Magnesium was dissolved in sulfuric acid, and titanium was removed with ammonium chloride and ammonium hydroxide, and the filtrate was used for the determination of magnesium by the phosphate method.
東北大学の論文
1954-00-00

Studies on the Analysis of Crude Metallic Titanium

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