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    • 9. 发明公开
    • METHOD FOR PRODUCING DRY ORGANIC PIGMENT
    • VERFAHREN ZUR HERSTELLUNG EINES TROCKENEN ORGANISCHEN PIGMENTS
    • EP2085432A1
    • 2009-08-05
    • EP07829889.0
    • 2007-10-16
    • DIC Corporation
    • OGATA, AkihiroKOBAYASHI, Nagatoshi
    • C09B67/06C09B67/04C09B67/20C09B29/15
    • C09B67/0003
    • The present invention provides a method for producing dry organic pigment, comprising the successive steps of, in this order: a first step wherein a wet organic pigment is obtained by drying an organic pigment presscake at 70 to 150°C to a moisture content of 5 to 30%, and a second step wherein a dry organic pigment is obtained by pulverizing and drying the wet organic pigment at a temperature that is higher than the temperature employed in the first step but lower than the decomposition temperature of the organic pigment. The method for producing dry organic pigment enables the dry organic pigment to be obtained with superior productivity while consuming less energy than conventional methods.
    • 本发明提供一种干燥有机颜料的制造方法,其顺序依次是:第一步骤,其中通过将有机颜料滤饼在70〜150℃下干燥至含水量为5,得到湿有机颜料 至30%,第二步,其中通过在比第一步骤中使用的温度高但低于有机颜料的分解温度的温度下对湿有机颜料进行粉碎和干燥获得干燥的有机颜料。 生产干燥有机颜料的方法能够以优于生产率获得干燥的有机颜料,同时消耗比常规方法更少的能量。