Method of concentrating slurried kaolin
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United States of America Patent
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-
Aug 18, 1987
Grant Date -
N/A
app pub date -
Jul 19, 1985
filing date -
Jul 19, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A beneficiated kaolin clay slurry is concentrated from a solids content of about 50% to 60% by weight to a solids content of at least 65% by weight by evaporating water therefrom by passing the aqueous clay slurry through one or more non-contact evaporated heat exchangers. The kaolin clay slurry is passed in indirect heat exchange relationship with a heating vapor, with the heating vapor comprising water vapor previously evaporated from the aqueous clay slurry.
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