Process for reducing the average particle size of ammonium paratungstate powders

摘要

A process for reducing the average particle size of an ammonium paratungstate powder having the steps of heating the ammonium paratungstate powder at a temperature of between about 110 DEG C. to about 205 DEG C. for a time sufficient to reduce the average particle size of the ammonium paratungstate powder by at least 20 percent.