Inorganic Ceramic Membrane System for Nano Powder Washing & Purification
In the wet chemical production of nano ultrafine powder, multiple anionic and cationic impurity ions remain after synthetic chemical reactions. Residual impurities will degrade the performance of nano ultrafine powder without thorough cleaning. Therefore, slurry washing of ultrafine finished products is essential in the production process to eliminate impurity ions and boost product purity.
Traditional washing processes adopt plate-and-frame filtration, high-speed centrifugation and other methods. Nevertheless, these conventional technologies suffer multiple drawbacks: slow filtration speed, severe powder loss and turbid filtrate, excessive washing water consumption, environmental pollution, material waste and heavy labor workload.
Application of Ceramic Membrane Technology in Nano Powder Separation and Purification
To tackle the above technical pain points, BluewavBio integrates advanced membrane separation technology into nano powder manufacturing based on years of practical membrane engineering experience. Up to now, Hecheng Filtration has delivered more than ten successful industrial projects for nano powder manufacturers.
The inorganic ceramic membrane system uses porous inorganic ceramic as the support substrate, coated with functional membrane layers and sintered under high temperature. It features high separation precision, outstanding wear resistance and stable continuous operation. Compared with organic polymer membranes, inorganic ceramic membranes demonstrate superior anti-fouling performance, strong acid & alkali resistance and wide temperature tolerance when treating industrial fluids. Hence, they are widely used for separating complex fluids with high solid content, high viscosity and rigid solid particles.
Typical application scenarios of ceramic membranes for nano powder washing and purification cover: nano catalysts, nano metal oxides such as titanium oxide, zinc oxide and alumina; nano inorganic salts including barium titanate and barium carbonate; nano metal hydroxides like zirconium hydroxide; silver powder and other particle suspensions.
Ceramic membrane separation breaks technical bottlenecks including slow impurity removal, low powder yield and discontinuous batch production. It efficiently eliminates impurity ions from raw slurry to produce ultrafine, high-purity nano powder.
Membrane Process for Nano Powder Separation & Purification
Advantages of Ceramic Membrane Technology for Nano Powder Separation & Purification
① Ultra-high filtration precision and excellent retention rate for ultrafine powder with nearly zero material loss. The retentate slurry can reach a solid concentration of 20%, and the permeate liquid maintains high clarity;
② Superior washing performance with no dissolved powder, enabling production of ultrafine powder with extremely high purity;
③ Inorganic ceramic membrane elements withstand high temperature, strong acids and strong alkalis with long service life;
④ Fully adjustable washing process parameters to improve the dispersibility of nano powder;
⑤ Main equipment frame constructed with sanitary-grade stainless steel;
⑥ Customizable control systems including manual, semi-automatic and full PLC automatic operation as required, with simple operation and maintenance;
⑦ Waste washing water can be further treated by RO reverse osmosis membranes, and recycled clean permeate is reused in the washing procedure to cut water consumption and operating costs.
BluewavBio is a professional manufacturer of membrane separation equipment staffed with senior engineers specializing in membrane industrial applications. Through years of technical research and industrial practice, we have mastered advanced ultrafiltration, nanofiltration, reverse osmosis and ceramic membrane technologies. We customize lab-scale, pilot-scale and full industrial membrane equipment for global clients. If you encounter any technical challenges in membrane filtration, feel free to contact us, and our professional engineering team will provide dedicated technical support and solutions.