Process and apparatus for production of ceramic powders by spray drying
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United States of America Patent
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Nov 11, 1997
Grant Date -
N/A
app pub date -
May 23, 1996
filing date -
Nov 23, 1993
priority date (Note) -
Expired
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Abstract
A process for spray drying of ceramic suspensions for the production of a powder which is dust free, sufficiently stable for storage and with good flow characteristics. The ceramic suspension is spray dried in a chamber (1) to a powder with a water content which is 0.1-10% higher than required in the final powder and hereafter fluidized in a fluid bed (6) with ambient air for an evaporative cooling process, whereby the water content is reduced to the required value at the same time as the powder is cooled. The produced powder has a high water content without tendency to lumping.
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