Ultrasonic vibration sieving apparatus and process for purifying carbon black by using the apparatus
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United States of America Patent
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Sep 15, 1987
Grant Date -
N/A
app pub date -
Oct 9, 1985
filing date -
Oct 9, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for purifying carbon black which contains solid impurities by removing the solid impurities thererom, which process comprises suspending said carbon black uniformly in water to obtain a carbon black aqueous slurry and subjecting the slurry to sieving treatment by an ultrasonic vibration sieving apparatus.
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