Production Technology:
AMT can be made in different way, mainly: There are different processes for APT which depends on different types and impurities contained of tungsten concentrate.
1.Wolframite high-pressure alkali digestion (caustic soda)-ion exchange-evaporation and crystallization;
2.Wolframite high-pressure alkali digestion (caustic soda)-solvent extraction-evaporation and crystallization;
3. Scheelite high-pressure soda digestion-ion exchange- evaporation and crystallization;
4. Scheelite high-pressure soda digestion- solvent extraction - evaporation and crystallization;
5. Scheelite high-pressure alkali villaumite digestion- ion exchange- evaporation and crystallization;
6.Scheelite high-pressure alkali villaumite digestion -solvent extraction-evaporation and crystallization;
7. Scheelite Hydrochloric acid decomposition ¨C fluorine dissolution- evaporation and crystallization
