Patent ID: 8110172
Filing Date: 2012-02-07
Classification: C01G,C01P,Y10T

Abstract:
1. A method of making agglomerated valve metal oxide particles, comprising combining a volatizable or vaporizable liquid with a starting valve metal oxide to form a wet starting valve metal oxide and heat treating the wet starting valve metal oxide to form agglomerated particles, wherein said agglomerated particles have a pore size distribution that is at least 10% greater than a pore size distribution of said starting valve metal oxide, and wherein said agglomerated particles have a BET surface area that is at least 90% of a BET surface area of said starting valve metal oxide, and then de-agglomerating said agglomerated particles by multi-stage milling to form de-agglomerated particles, wherein said starting valve metal oxide particles comprise Nb 2 O 5 , or an oxygen-reduced niobium oxide.