Granulation process

Details Granulation process Granulation process

1980-11-18

1982-10-12

Garris, Bradley

Chemistry: physical processes

Physical processes

Agglomerating

34 10, 34 20, 71 6402, 71 6406, 264 7, 264 12, 264 14, 427213, 427214, A01N 2506, B01J 204, B01J 216

Patent

active

043537090

ABSTRACT:
There is disclosed a process of granulation comprising dropping as liquid droplets the melt of a substance solidifiable by cooling or drying through a zone having a sufficient vertical distance to allow solidification of the droplets, forming a fluidized bed of the solidified droplets on the bottom of the said zone, spraying the same or a different melt from the above mentioned substance as fine liquid grains along with a gas stream into the fluidized bed thereby forming a spouted bed of the solidified droplets in the fluidized bed, coating and enlarging the solidified droplets with the fine liquid grains inside the spouted bed, and discharging the obtained large sized granules from the fluidized bed. There is also disclosed an apparatus for practicing the process.

REFERENCES:
patent: 2986475 (1961-05-01), Mesnard et al.
patent: 3231413 (1966-05-01), Berquin et al.
patent: 3457336 (1969-07-01), Harris
patent: 3539326 (1970-11-01), Otsuka et al.
patent: 3933956 (1976-01-01), Mavrovic
patent: 4190622 (1980-02-01), Landis
patent: 4213938 (1980-07-01), Pyzel
patent: 4217127 (1980-08-01), Kono et al.
patent: 4219589 (1980-03-01), Niks et al.
patent: 4226830 (1980-10-01), Davis

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