利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.008 秒)

    PROCESS FOR PRODUCING A COATED FERTILIZER
    2.
    发明公开
    PROCESS FOR PRODUCING A COATED FERTILIZER 有权
    VERFAHREN ZUR HERSTELLUNG EINES BESCHICHTETENDÜNGEMITTELS

    公开(公告)号：EP2748124A1

    公开(公告)日：2014-07-02

    申请号：EP12756675.0

    申请日：2012-08-24

    申请人： Ekompany Agro B.V.

    发明人： KAATHOVEN VAN, Hendrikus Gijsbertus Adrianus ,  XUAN BUI, Hoa

    IPC分类号： C05G3/00 ,  B01J2/00 ,  B01J2/30 ,  C08G18/10 ,  C08G18/12 ,  C08G18/36 ,  C09D175/04

    CPC分类号： C05G3/0029 ,  B01J2/006 ,  B01J2/12 ,  C05B7/00 ,  C05C1/00 ,  C05C9/00 ,  C05D1/00 ,  C08G18/10 ,  C09D175/04 ,  C08G18/36

    摘要： The present invention relates to a process for producing polyurethane coated fertilizer granules comprising core granules in a rotating drum, wherein the drum comprises an inlet and an outlet and n application zones arranged along the longitudinal direction of the drum between the inlet and the outlet, n being an integer of at least 2 and wherein each of the application zones is followed by a curing zone. The curing zone after each application zone is arranged to allow an interval of 2-15 minutes, preferably 3-5 minutes, before the application in the successive application zone, wherein the polyol and the isocyanate are applied in the first application zone at a ratio of 0.5-4 wt%, preferably 1 -3 wt% of the core granules. The process comprises the steps of: A) continuously feeding the core granules to the inlet of the rotating drum, thereby providing a flow of the core granules in the direction from the inlet to the outlet, B1 ) applying a polyol and an isocyanate to the core granules in each of the n application zones, the ratio of hydroxyl groups in the polyol to NCO groups in the isocyanate at the end of each of the application zones being in the range from about 0.9 to about 1.3, B2) reacting the polyol and the isocyanate to form a tack-free polyurethane layer in each of the n curing zones and C) continuously collecting the polyurethane coated fertilizer granules from the outlet.

    摘要翻译： 一种制造在旋转滚筒中具有核心颗粒的聚氨酯涂覆肥料颗粒的方法，其中所述滚筒具有入口和出口以及在所述入口和所述出口之间沿所述滚筒的纵向布置的n个施加区域，n为整数 至少2个，并且其中每个施用区域之后是固化区。 每个施用区域之后的固化区域被布置成允许间隔2-15分钟，优选3-5分钟，然后在连续施加区域中施用，其中多元醇和异氰酸酯以第一施用区域的比例 为核心颗粒的0.5-4重量％，优选1-3重量％。 该方法具有以下步骤：A）将核心颗粒连续供给到旋转鼓的入口，从而在从入口到出口的方向上提供芯颗粒的流动，B1）将多元醇和异氰酸酯施加到 在每个施加区域中的每一个中的核心颗粒，在每个施用区域的末端的异氰酸酯中的多元醇中的羟基与NCO基团的比例在约0.9至约1.3的范围内，B2）使多元醇和 异氰酸酯，以在n个固化区中的每一个中形成无粘性聚氨酯层，和C）从出口连续收集聚氨酯涂覆的肥料颗粒。