The dried precipitate is ball milled or otherwise thoroughly blended and then fired in said reducing atmosphere at a temperature in {HEAD ~ the range} from about 900 C to about 1300 C, preferably from {TAIL ~ about 1000 C} to about 1200 C. Alternatively, the wet precipitate can be heated or fired first, and then ball milled or otherwise thoroughly blended afterward 
preferably from
The dried precipitate is ball milled or otherwise thoroughly blended and then fired in said reducing atmosphere at a temperature in { HEAD ~ the range } from about 900 C to about 1300 C , preferably from { TAIL ~ about 1000 C } to about 1200 C. Alternatively , the wet precipitate can be heated or fired first , and then ball milled or otherwise thoroughly blended afterward
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