Freeze Granulation – Spray Freeze Drying

Nanoparticles

Nanomaterials/Nanotechnology (Nanopowders/Nanoparticles)

Freeze granulation gives the possibility to granulate nanoparticles achieving 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.

Please contact us for more information and a test-granulation of your powder system.

Granule of nanoparticles

Granule of nanoparticles

Nanoparticles (Nanosuspensions) can be granulated and dried into a powder and then re-dispersed to nanoparticles again avoiding agglomeration (aggregates) of nanoparticles, which is not possible with other granulation methods like spray drying.

Nanogranule

Processing of nanoparticles

Processing of nanoparticles

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