Multi-stage process for continuous coating of fertilizer particl

Details Multi-stage process for continuous coating of fertilizer particl Multi-stage process for continuous coating of fertilizer particl

1991-10-09

1993-05-18

Beck, Shrive

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

427221, 71 6402, 71 6406, 71 6407, 118303, 118DIG5, B05D 700

Patent

active

052119858

ABSTRACT:
An apparatus and method for continuously producing polymer coated particles, and in particular, a polymer coated fertilizer, wherein the coating material used is, for example, an aqueous film forming latex. The coating process is conducted with a plurality of fluidized beds, connected in series, under conditions such that, preferably, the relative humidity of the air in the initial coating zones is maintained below the critical relative humidity of the particle to be coated.

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