Patent ID: 8241595

Claim:
A method for manufacture of potassium titanate including the steps of: mixing a titanium source and a potassium source while milling them mechanochemically by a vibration mill; firing the milled mixture to prepare potassium dititanate; and subjecting the potassium dititanate to an acid treatment so as to dissolve a potassium content from the potassium dititanate and firing the resultant to manufacture potassium titanate represented by K 2 Ti n O (2n+1) (n=4.0-11.0) in which it has the highest X-ray diffraction intensity peak (2θ) in the range of 11.0°-13.5°, its half width, determined by performing peak searching after smoothing using a weighted average method and background removal using a Sonnevelt-Visser method, is not less than 0.5°, it has a mean particle diameter, measured by a laser diffraction particle-size distribution measurement device, in the range of 5-20 μm, and it has an indeterminate configuration which is not a fibrous, platy or particulate form.