Freeze Granulation for optimal granule properties compared with spray drying. Homogeneous granules with no void formation, no migration of fine particles or binders, and no formation of hard dry shell.
What is the difference between spray drying and Freeze Granulation? For more info, please go to our Pros & Cons.
The best way to find out if Freeze Granulation is suitable for your material is to let us do a test granulation. Freeze Granulation will be more expensive than spray drying as it is a two-step process. The relative difference depends on the scale and Freeze Granulation is more suitable for small or medium size batches where the demands on granule quality is high whereas spray drying is most suitable for large scale processing.
We have long experience in handling and processing of nanoparticles/nanopowders, for example, mix and granulate different powders and binders for to achieve improved homogeneity and increased performance of the final product.
Freeze granulation gives the possibility to granulate nanoparticles/nanopowdersachieving granules with high degree of homogeneity which are easily re-dispersed (if applicable) in a liquid or dis-integrated at a pressing operation. This is owing to the week inter-particle bonding compare to what is obtained in conventional drying. Consequently, the nanosized material properties will be preserved, i.e. nano will still be nano. Freeze-drying also prevents oxidation of metals or non-oxide materials as conventional drying do not, especially critical for nanopowders.
If you would like to test-granulate your powders or chemicals using Freeze Granulation, please contact us for details. You send your material and binders to us, we make the test-granulation using freeze granulation and then send the granulated material (granulaes) back to you for your evaluation and testing.
Freeze granulation is considered to be a natural tool in most kind of material processing and development where optimal material performance is to be reached. PowderPro provides test granulations to reduced cost to evaluate the performance regarding your specific material system and application.
When purchasing of granulation equipment, PowderPro provides help in concepts for suspension formulation/preparation and how to operate the equipment to achieve high yield and high-quality granules.