| 摘要 |
PROBLEM TO BE SOLVED: To provide an industrially and economically advantageous method for producing rutile-type, rod-shaped titanium dioxide which is excellent in whiteness. SOLUTION: In the production method of the rutile-type, rod-shaped titanium dioxide, hydrous titanium oxide is heated and fired at 900-1,200°C together with, against the total weight of TiO<SB>2</SB>in hydrous titanium oxide, 0.1-1.5 wt.% aluminum compound calculated in terms of Al<SB>2</SB>O<SB>3</SB>, 0.1-1.5 wt.% sodium compound calculated in terms of Na<SB>2</SB>O, 0.1-1.5 wt.% potassium compound calculated in terms of K<SB>2</SB>O and 0.1-1.5 wt.% phosphorus compound in terms of P<SB>2</SB>O<SB>5</SB>. COPYRIGHT: (C)2004,JPO&NCIPI
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