| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a valve metal-oxide powder, in particular Nb<SB POS="POST">2</SB>O<SB POS="POST">5</SB>powder and Ta<SB POS="POST">2</SB>O<SB POS="POST">5</SB>powder, which are particularly suitable for solid-state reactions, for example, for use as a catalyst or for the production thereof and as electroceramics or for the production thereof; and a simple method for producing the valve metal-oxide powder. <P>SOLUTION: The valve metal-oxide powder has a spherical morphology, a D<SB POS="POST">50</SB>value of 10-80 μm, and a large BET surface area. In the method for producing the valve metal-oxide powder, the valve metal-oxide powder is produced by precipitating a fluoride-containing valve metal compound with a base at elevated temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
