6. Implementation
Molybdenum powder is used in the production of molybdenum (and its alloys) by vacuum electrofusion or powder metallurgy. Tungsten is often the major impurity, due to the very similar properties of the two materials. Chemical separation (in liquid phase using tributylphosphate or amyl acetate) or ion exchange chromatography in hydrochloric solution are the most appropriate methods.
6.1 Powder metallurgy
This method accounts for over 90% of production. After grinding, mixing, homogenizing and sieving, the powder...
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