Carbon black pellets
    3.
    发明申请
    Carbon black pellets 审中-公开
    炭黑颗粒

    公开(公告)号:US20070203284A1

    公开(公告)日:2007-08-30

    申请号:US11742016

    申请日:2007-04-30

    IPC分类号: C01B31/08

    摘要: A method for producing carbon black pellets in a ring layer mixing granulator where the feed amount of unpelletized carbon black is kept constant and the water is dispensed via two nozzle holders positioned as close as possible to the inlet, each with two nozzles, where the spray cones make an angle between 10 and 90° to the direction of flow of the carbon black, at a pressure of 3-5 bar measured at the nozzles. Carbon black pellets are disclosed with an oil absorption number greater than 100 ml/100 g and an oil absorption number of the pressed carbon black greater than 78 ml/100 g, where the pellet fraction with a diameter greater than 2.5 mm is less than 3.5 wt %, the pellet fraction with a diameter of 0.71-1.0 mm is greater than 22 wt %, and the individual pellet hardness of the fraction with the 0.71-1.0 mm diameter is between 7.0 and 25.0 g. Also disclosed are carbon black pellets with an oil absorption number less than 90 ml/100 g, and an oil absorption number of the pressed carbon black less than 78 ml/100 g, where the pellet fraction with a diameter of 0.71-1.0 mm is less than 30 wt % and the individual pellet hardness of the fraction with the 0.71-1.0 mm diameter is between 7.0 and 25.0 g. The carbon black pellets can be used in polymer and rubber mixtures, paints, dyes or pigments.

    摘要翻译: 在环状混合造粒机中生产碳黑粒料的方法,其中未分级炭黑的进料量保持恒定,并且通过两个喷嘴保持器分配水,每个喷嘴保持器尽可能靠近入口定位,每个具有两个喷嘴,其中喷嘴 锥体在炭黑的流动方向上以与喷嘴一致的3-5巴的压力形成10至90度的角度。 公开了具有大于100ml / 100g的吸油量和压缩炭黑的吸油量大于78ml / 100g的炭黑颗粒,其中直径大于2.5mm的颗粒组分小于3.5 重量%,直径为0.71-1.0mm的颗粒组分大于22重量%,直径为0.71-1.0毫米的级分的单个颗粒硬度为7.0至25.0克。 还公开了吸油量小于90ml / 100g的碳黑颗粒,压制炭黑的吸油量小于78ml / 100g,其中直径为0.71-1.0mm的颗粒组分为 小于30重量%,并且具有0.71-1.0mm直径的级分的单个颗粒硬度为7.0至25.0g。 炭黑颗粒可用于聚合物和橡胶混合物,油漆,染料或颜料中。