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Silica sol concentration

The concentration stage in the production of silica sol is a process with high energy consumption and long cycle. The traditional concentration methods usually involve reducing pressure for dehydration to obtain the desired concentration of silica sol. The ultrafiltration membrane concentration method has lower energy consumption per unit output, shorter cycle, and lower equipment investment. Therefore, it is an effective way to reduce product costs and improve product quality. 


Through extensive application engineering of ceramic membranes for the concentration of silica sol, reliable techniques and parameters for the application of ceramic membranes in silica sol concentration have been mastered. This has achieved a technological breakthrough in membrane separation research: Compared with organic ultrafiltration membranes, the extremely high processing capacity of organic ultrafiltration membranes can concentrate silica sol to 30%. Once the concentration exceeds 30%, the organic ultrafiltration membranes suffer severe wear, rapid loss, and are prone to irreversible damage. At this point, new membrane elements must be replaced. Inorganic ceramic membranes can concentrate silica sol to over 40% and can quickly restore production capacity after cleaning and continue to be used. 


Inorganic ceramic membranes not only can effectively remove water from dilute sols, but also can remove suspended matter or particles, thereby improving the efficiency and quality of filtration. They are easy to clean, have strong recyclability, save manpower and material resources, and greatly extend the service life of the equipment, bringing benefits to manufacturers of silicon sols. 


Wuhan Bona is a professional manufacturer of membrane separation equipment, with a group of experienced engineers in membrane engineering applications. After years of technological development and engineering practice, it has mastered advanced ultrafiltration, nanofiltration, reverse osmosis and ceramic membrane technologies. It focuses on designing and producing pilot, pilot-scale and industrial equipment for customers. If you encounter any problems in membrane filtration, please feel free to contact us at any time. Our professional technicians will be able to assist you.