PowderPro AB develops, manufactures, markets and sells equipment for Freeze Granulation, i.e. spray freezing and subsequent freeze drying – Spray Freeze Drying.
Freeze Granulation was developed in late 1980s at Swedish Ceramic Institute and it is also a development of Spray Freeze Drying (SFD) and Spray Freezing into Liquid (SFL).
In mid 70th W.W. Rhodes and S. Prochazka (1975) provided the first publications about Freeze Granulation of ceramic powders without defining the advantage or explaining the positive results.
Freeze granulation, spray freezing and subsequent freeze drying (lyophilization or cryodesiccation), a development of Spray Freeze Drying (SFD) and Spray Freezing into Liquid (SFL), was first developed for granulation of ceramic powders at Swedish Ceramic Institute (SCI) in Göteborg in the late 1980′s. It was early shown to be the most suitable method to provide optimal granule properties for lab and research purposes and, later on, also for pilot and production scale processing of ceramics and other powder-based materials.
During the 1990′s, Freeze Granulation was successfully applied in material and processing developments within many research projects and commercial contract work. Specific powder systems from various companies were tested with very good results, demonstrated by homogeneous granulates and improved final component/material properties. However, no commercial equipment was available and therefore PowderPro AB was founded in January 2000 with the objective to provide equipment for the process.
PowderPro AB develops, manufacture, market and sell granulation equipment and carries out test granulations (standard concept), whereas Swerea IVF conducts developments regarding suspension concepts and granulation methodology.
Several companies and research labs around the world have applied the Freeze Granulation process with the support of PowderPro AB. Typical applications for freeze granulation are homogeneous granulation and drying of ceramic powders; oxides (Al2O3, ZrO2, SiO2), nitrides (Si3N4) and carbides (SiC) and also metal oxides, nanomaterials (nanopowders), diamonds, LED Lighting, explosives (igniters, delay elements) and pharmaceuticals like proteins, enzymes and chemicals.