The control of particle size distribution of Ammonium Metatungstate is a key step, which directly affects the performance and application of the product.
Raw material control
Select high-quality ammonium paratungstate (APT) as raw material and control impurities and particle size distribution in raw material. High-quality raw materials are the basis for ensuring uniform particle size distribution of the product.
Process control
Preparation method Select the appropriate preparation method according to the target particle size distribution, such as precipitation method, hydrothermal method and sol-gel method. Different preparation methods will get different particle size distribution of ammonium metatungstate.
The sol-gel method usually prepares smaller particle sizes, generally between 10 and 70 nm.
The particles prepared by precipitation and hydrothermal methods are larger, generally between 0.1 and 10 micrometers.
Process parameters
Formulate reasonable production process and technical parameters, such as pH, temperature, reaction time and so on. These parameters have an important effect on the particle size distribution of the product.
Liquid concentration
The concentration of the feed solution has a significant effect on the particle size of the prepared microspheres. The preferred concentration should be in the lower range, e.g. 5%, in order to avoid the increase of particle size caused by too high concentration and the poor drying effect caused by too low concentration.
Process Inspection
Quality inspection and control is carried out during the production process, such as the inspection of particle size distribution, bulk density, moisture and other indicators. Through timely testing and adjustment, to ensure that the product particle size distribution meets the requirements.
Equipment selection
Select appropriate production equipment, such as reactors, filters, dryers and so on. Ensure that the equipment can meet the requirements of the particle size distribution of the product and is free from contamination and damage in the production process.
Quality management
Establish quality management system and implement product quality inspection and assessment. Carry out quality certification and traceability management for the products to ensure that the product quality is stable and meets the requirements.
Optimization and Adjustment
According to the actual production and product quality requirements, constantly optimize and adjust the preparation process and parameters. Through continuous experiment and practice, find the most suitable preparation method and process parameters to obtain the best particle size distribution.
Controlling the particle size distribution of ammonium metatungstate needs to start from raw material control, process control, process inspection, equipment selection, quality management as well as optimization and adjustment. Through reasonable control and adjustment, we can obtain the particle size distribution that meets the requirements and improve the performance and application effect 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
