The production process of tungstate acid method in the smelting of ammonium metatungstate can be summarized as follows:
Raw material preparation
The main raw materials are tungstic acid and ammonia water.
Dissolution and reaction
Dissolve tungstic acid with ammonia water and then add it to boiling deionized water.
Heat under stirring and make the pH value of the solution reach 8 through ammonia reaction. This step helps to form a mixed solution of tungstate and ammonia water.
Reaction control
Control the temperature and uniformity of the solution through precise heating and stirring to ensure the smooth progress of the reaction.
In this process, it is necessary to maintain a certain temperature and stirring speed to promote the reaction.
Subsequent treatment
After stopping heating, let the solution cool naturally.
After cooling, remove impurities through filtration and other steps to obtain a pure tungstate solution.
Formation of ammonium metatungstate
Add an appropriate amount of acid (such as acetic acid) to the obtained tungstate solution, and then adjust the pH value to 2-4 with dilute nitric acid.
Continue to heat and concentrate to a relative density of 1.5-2, then stop heating.
After cooling, the ammonium metatungstate product is obtained through filtering and drying.
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 need to take appropriate personal protection measures 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.
Product application
Ammonium metatungstate, as an important inorganic compound, is widely used in many industries such as electronics, metallurgy, petrochemicals and ceramics.
This production process shows the whole process of starting from tungstic acid and ammonia water, through dissolution, reaction, control, subsequent treatment and generation, and finally obtaining the ammonium metatungstate product. Among them, the control of key parameters such as temperature, pH value and reaction time is crucial to 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
