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Powder manufacturing & Recovery
In many industrial applications, the benefits of microfiltration lie in the ability to concentrate fine powder slurries by extracting water or solvents from them or to recover high-value powders lost in upstream processes. In the case of powder recovery, these industrial by-products have no practical uses and are characterized as solid waste. Crystar® FT is a suitable alternative to slurry evaporation, or an effective pre-treatment prior to it, in a variety of inorganic and organic powder manufacturing and recovery applications. It provides energy savings over evaporation and displays significantly reduced water consumption in powder processing applications.
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An Energy-Efficient Process with Crystar® FT
Crystar® ceramic membranes have successfully been used as an alternative to slurry evaporation in the manufacturing and recovery of high-value powders. These powders or powder slurries can usually be obtained through evaporation; a process that consumes large amounts of energy and water. Crystar® microfiltration represents a massive improvement in terms of efficiency, reduction in energy of powder processing, and concentration factors that can eliminate the need for more energy demanding evaporation systems.
In these critical powder processing operations Saint-Gobain’s Crystar® crossflow membranes offer the following benefits:
- high permeate fluxes for a fast and efficient powder concentration process,
- sharp selectivity thanks to the well-engineered and controlled layer of recrystallized silicon carbide,
- the possibility to work in harsh environments (solvents for instance) thanks to outstanding chemical resistance of Crystar® ceramic membranes,
- long lifetime thanks to the superior abrasion resistance of silicon carbide and the special capping technology used in Crystar® crossflow membranes.
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