4. Classifying, separating, and assorting solids
  5. Fluid suspension
  6. Liquid

Nittetsu Mining Company, Ltd.

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Froth flotation process for recovering sheelite

Classifying – separating – and assorting solids – Fluid suspension – Liquid
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Process for recovering tungsten from alkaline leaching solution

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
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