A granular surfactant which is obtained, for example, by simultaneous granulation and drying by spraying a solution or slurry, in which a whole or a part of a surfactant is dissolved or dispersed in water or warm water, in a fluidized bed where hot air is introduced, and then by classification of the granules obtained in the above step to remove granules having lower diameters. Typically, a weight ratio of granules having a diameter of 0.1 mm or less is 2.0 wt % or less and a median diameter is 0.17 mm or more. The granular surfactants are easily manufactured and have high water solubility, reduced powder dust, and fluidities.
一种颗粒状表面活性剂,例如,通过将溶液或浆料(其中全部或部分表面活性剂溶解或分散在
水中或温
水中)喷洒在导入热空气的流化床中,同时进行造粒和干燥,然后对上述步骤中获得的颗粒进行分级,以去除直径较小的颗粒,从而获得颗粒状表面活性剂。通常情况下,直径为 0.1 毫米或以下的颗粒的重量比为 2.0 重量百分比或以下,中值直径为 0.17 毫米或以上。颗粒表面活性剂易于制造,
水溶性高,粉尘少,流动性好。