发明授权
US4693879A Ultrasonic vibration sieving apparatus and process for purifying carbon black by using the apparatus 失效
超声波振动筛分装置及使用该装置净化炭黑的方法

Ultrasonic vibration sieving apparatus and process for purifying carbon
black by using the apparatus
摘要:
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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