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Silica sol is a colloidal-sized particle that stabilizes the system in water. Because silica sol has excellent solubility, permeability, permeability and properties, and fire resistance, it can be used on textile surfaces, papermaking, steel casting, metal processing, ceramics, etc. It has been widely used in coatings, coatings, adhesives and other industries, and can play different roles in improving the quality of industrial products, simplifying production processes, and saving resources.


Silicon metal manufacturers will share the methods of preparing silica sol in China in detail, which are: ion exchange method, acid neutralization method, electroosmosis method, silica fume dissolution method and peptization method.

The ion exchange method is adopted by most domestically, but the process route of this method consumes a lot of energy;
                                              


During the electrolysis and electroosmosis process, the precipitation may occur in possible operations, the voltage and duration are relatively high, and the silica sol is easy to be converted;

The acid neutralization method has poor stability and the peptization method requires high conditions.

However, the preparation of silica sol with metal silicon powder has simple process, lower cost and better product quality, and is more suitable for small and medium-sized enterprises to produce.
                                                                       

Experiments show that the more the amount of metal silicon powder, the higher the content of SiO2 in the silica sol and the better the quality of the silica sol. 

However, adding too much metal silicon powder will cause vacuum filtration and recycling of metal silicon powder. Bringing certain difficulties, and also considering economic reasons, the amount of metal silicon powder should be 160 parts.

The above is a detailed sharing of the preparation method of silica sol by the silicon metal manufacturer. I hope it will be helpful to you. For more questions about silicon metal, please feel free to consult us.