METHOD OF GRANULATING PARTICULATES Russian patent published in 2014 - IPC B01J2/14 

FIELD: chemistry.

SUBSTANCE: method is carried out through the following consecutive steps: feeding, mixing, moistening with binder, preliminary granulation and granulation by pelletisation. The preliminary granulation step is carried out in a high-speed apparatus with mechanical activation of the initial mixture, to which the binder is added in an amount of 20-35 wt % of the total weight of the binder until establishing plastic strength of the mixture at a level of 20-30 kg/m². The step for granulation by pelletisation is carried out by feeding microgranules obtained at the first granulation step onto the surface of a scuff plate rotating anticlockwise and at a rate higher than the critical rotation speed of the scuff plate. That step is carried out with simultaneous moistening by periodic fine spraying of the binder in amount of 4-15% of the total weight of the binder.

EFFECT: invention enables to granulate multi-component granular mixtures with particle size of 1-7 mm, and mixtures of enzymes and biologically active preparations.

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