The production process of tungstic acid method in ammonium metatungstate smelting and production can be clearly summarized as follows:
- Raw material preparation
Main raw materials: tungstic acid and ammonia water
- Dissolution and reaction
Dissolve tungstic acid with ammonia water and add it to boiling deionized water.
Heat the ammonia under stirring to make the pH value of the solution reach 8.
- Reaction control
Control the temperature and uniformity of the solution through precise heating and stirring.
Ensure that the reaction process is carried out at an appropriate temperature and stirring speed.
- Subsequent treatment
After stopping heating, let the solution cool naturally.
After the solution is cooled, remove impurities through filtration and other steps to obtain a pure tungstate solution.
- Formation of ammonium metatungstate
Add an appropriate amount of acetic acid to the obtained tungstate solution.
Use dilute nitric acid to adjust the pH value of the solution to 2-4.
Continue to heat the concentrated solution and stop heating when the relative density is 1.5-2.
Cool the filtered solution, add ethanol and stir thoroughly, and filter after sedimentation.
The obtained crystals are dried and crushed at 80°C to obtain ammonium metatungstate products.
- Precautions
During the entire production process, the temperature, pH value and reaction time of each step need to be strictly controlled to ensure the quality and purity of the product.
Operators should wear appropriate protective equipment to avoid dangers such as accidental inhalation and ingestion.
Storage should be in a ventilated, dry and cool warehouse to avoid direct sunlight and high temperature.
This production process starts with raw material preparation, and finally obtains ammonium metatungstate products after steps such as dissolution and reaction, reaction control, subsequent treatment and the generation of ammonium metatungstate. Each step requires precise control of relevant parameters to ensure the quality and purity of the product.
More details of ammonium metatungstate product, please visit website: http://ammonium-metatungstate.com/
Please contact CHINATUNGSTEN for inquiry and order of ammonium metatungstate:
Email: sales@chinatungsten.com
Tel.: 86 592 5129595
