The invention relates to carbon black granulates having an APC value, measured at a conveying speed of 8 m/s and a solid load of 27 g/kg, less than or equal to 20 and a 25 [mu]m pressure filter value of less than 5 bar cm2/g. The carbon black granulate is produced by carbon black powder being pre-granulated in a first mixing granulator with addition of a granulation liquid with or without binders and being granulated to a finished state in a second mixing granulator without further addition of granulation liquid. The carbon black granulate can be used as a filler, reinforcing filler, UV stabilizer, conductive carbon black, pigment, or reducing agent.
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机译:本发明涉及具有APC值的炭黑颗粒,其在8m / s的输送速度和27g / kg的固体负荷下测得小于或等于20且25μm的压滤值小于或等于20。大于5 bar cm2 / g。炭黑颗粒是通过将炭黑粉末在第一混合制粒机中预先制粒并加入有或没有粘合剂的制粒液,然后在第二混合制粒机中制粒成最终状态而无需进一步添加制粒液而制成的。炭黑颗粒可用作填料,增强填料,紫外线稳定剂,导电炭黑,颜料或还原剂。
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