Ammonium paratungstate is a common catalyst. The production equipment generally includes the following:
- Reaction kettle: ammonium paratungstate is obtained through the reaction of ammonium tungstate and ammonium salt, so a reaction kettle is needed to mix and react the two compounds.
- Filtration equipment: The mixture after reaction needs to remove unwanted solid impurities through filtration equipment.
- Concentration equipment: The filtered mixture needs to be concentrated, usually using evaporator or extractor.
- Drying equipment: The concentrated mixture needs to be dried. Common equipment includes vacuum dryer and oven.
- Crushing equipment: The dried ammonium paratungstate usually needs to be crushed to obtain the required particle size.
The above equipment can be adjusted according to different production scale and production process, and corresponding conveying, control and safety equipment shall also be equipped to ensure the safety and stability of the production process.
