Patent ID: 8771618
Filing Date: 2014-07-08
Classification: B82Y,C01D,C01G,C01P,C04B,H01L,Y10T

Abstract:
1. A method of producing particulate alkali metal niobate represented by the following formula (1): wherein M represents one element selected from alkaline metals, the particulate alkali metal niobate having a substantially rectangular cuboid shape, the method comprising the steps of: (a) mixing a niobium-containing solution with an alkaline solution having a concentration of 0.1 to 30 mol/L, to prepare a suspension; (b) allowing the suspension to stand still for 12 to 48 hours at a temperature between 80° C. and 150° C.; (c) performing a solvothermal reaction of the suspension at a temperature between 150° C. and 300° C. for 1 to 12 hours; and (d) separating the particulate alkali metal niobate from a reaction mixture.