Process for the preparation of a powder comprising one or more complexing agent salts
    7.
    发明授权
    Process for the preparation of a powder comprising one or more complexing agent salts 有权
    制备包含一种或多种络合剂盐的粉末的方法

    公开(公告)号:US09540597B2

    公开(公告)日:2017-01-10

    申请号:US13501390

    申请日:2010-10-11

    摘要: A process for the preparation of a powder comprising one or more complexing agent salts of the general formula comprises atomizing an aqueous solution comprising the one or more complexing agent salts in the presence of a crystalline fine dust of the same complexing agent salts and a drying step, wherein the concentration of the one or more complexing agent salt is from 10 to 80% by weight, based on the total weight of the aqueous solution, with an upper limit for the average particle diameter of the crystalline fine dust which is lower by at least a factor of 2 than the lower limit of the average particle diameter of the powder obtained after the process, and the fraction of the crystalline fine dust is from 0.1 to 20% by weight, based on the weight of the powder obtained after the process.

    摘要翻译: 提出了一种制备包含一种或多种通式络合剂盐的粉末的方法,其起始于包含浓度为10-80重量%的一种或多种络合剂盐的水溶液,基于总量 在喷雾干燥过程中,包括雾化步骤和干燥步骤,其中所述雾化步骤是通过加入与存在于所述雾化步骤中的相同络合剂盐的结晶细粉末来进行的 水溶液或一种或多种与其不同的络合剂盐,结晶细粉尘的平均粒径的上限比所得粉末的平均粒径的下限低至少2倍 在该方法之后,以0.1至20重量%的比例,基于该方法后获得的粉末的重量。