TAMI (IMI) Central R&D; Inst.
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Accessibility Statement

Powder chemistry

TAMI has very broad experience in manipulating solid material – from powders to granules and back. We have the following in-house capabilities, which are also accompanied by physico-chemical and wet chemical analysis:

Mixing and agglomeration processes: Feasibility trials, product development from lab to pilot scale; scale-up.

  • Compaction
    • Compaction is a powder agglomeration process, where materials undergo extreme pressure. TAMI has expertise in compacting a wide range of organic and inorganic products and other materials. Available equipment ranges from lab-scale presses to a pilot scale roll compactor with a capacity of up to 100 kg per hour.
  • Granulation
    • Granulation is an agglomeration process, based on agitating the powders and forming large granules from fine particles. Several granulation processes are available at TAMI: plate granulation, drum granulation and high-shear granulation from a lab scale to a pilot scale of 5 kg per batch.
  • Blending
    • Blending or mixing is a process of making a heterogeneous mix more homogeneous. Several mixer types, ranging from a portable concrete/mortar mixer to paddle and high-shear mixers, are available at IMI.


De-agglomeration, size-reduction processes: Identifying the best milling option for a specific application, process optimization and particle size analysis, and scale-up.

  • Crushing
    • Crushing is a size reducing operation, utilized to break large rocks into smaller rocks in beneficiation processes. Crushing is done by putting the material between two parallel or tangential solid surfaces and applying a force to bring the surfaces together. Two pilot-scale types of crushers, a Jaw crusher and a Roller crusher, are available at TAMI. We have the know-how to use them on Potash, Phosphate, and other type of ores.
  • Dry Milling
    • Dry milling is a process of grinding, de-agglomerating and homogenizing feedstock into narrow particle size ranges. A wide range of dry mills: Pin mills, Blade mills, Hammer mills, Rod mills and Ball mills, from leading manufacturers, are available on both the lab and pilot scale.
  • Wet milling
    • Wet milling is a process in which particles dispersed in a liquid are ground by the impact of shearing, crushing or attrition. Wet milling is usually applied when the raw materials are available in the form of a slurry or when the target particle size distribution is not in the range for dry milling. Ball-type wet milling for a coarser process, and Bead milling for submicronic size distributions, are both available on the pilot scale.