Spray drying process and apparatus therefor
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United States of America Patent
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Mar 7, 1989
Grant Date -
N/A
app pub date -
Dec 29, 1986
filing date -
Dec 27, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The spray drying process and the apparatus therefor, of the present invention use a spray drying chamber formed by a heat-resistant porous membrane. Said porous membrane enables rapid separation of a discharge gas and a produced powder and accordingly total recovery of the produced powder from the spray drying chamber. Therefore, there occurs no nonuniformity in product composition; cleaning and blowing-off of adhered fine powder can be conducted rapidly and easily even in frequent product change inevitable with a less grade larger quantity production system; as a result, a fine powder of higher quality and higher purity can be produced.
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