Fluidized bed granulator
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United States of America Patent
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Aug 25, 1992
Grant Date -
N/A
app pub date -
Jan 25, 1989
filing date -
Jul 6, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In conventional fluidized granulators whose housing is made of a steel plate, a powder tends to cause blocking if it is highly hygroscopic, and the bag filter used therein causes clogging. These problems have been solved in the present invention by forming the housing of a fluidized granulator with a porous membrane in place of the conventional steel plate. This fluidized granulator produces granules or a coated powder by spraying powder with water, a binder fluid or a coating fluid while maintaining the powder in a fluidized state.
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