一种木质素磺酸钠/聚苯乙烯基活性炭微球的制备方法

本发明涉及一种木质素磺酸钠/聚苯乙烯基活性炭微球的制备方法,属于活性炭技术领域。本方法以粉状木质素磺酸钠为原料制备活性炭前驱体,然后进行炭活化制备活性炭微球,制备方法所用原材料价格便宜,与现有技术相比省略了粉状原料或粉状炭使用粘结剂成型的工艺步骤,避免了容易造成环境污染的粘结剂的使用,有利于保护环境。本方法使用一步炭活化法,因此制备步骤简单,可操作性强,温度调控方便,使用水蒸气活化避免了化学活化中活化剂使用造成的环境污染,适用于本发明产品的大规模工业生产。

This invention pertains to a preparation method for sodium lignosulfonate/polystyrene-based activated carbon microspheres, falling within the technical field of activated carbon. This method uses powdery sodium lignosulfonate as the raw material to prepare an activated carbon precursor, followed by carbonization and activation to obtain the target activated carbon microspheres. The raw materials used in this preparation method are low-cost. Compared with existing technologies, this method omits the process step of molding powdery raw materials or powdery activated carbon with binders, thereby avoiding the use of binders that tend to cause environmental pollution, which is beneficial to environmental protection. This method adopts a one-step carbonization and activation process, resulting in simple preparation steps, strong operability, and convenient temperature regulation. Using steam activation avoids the environmental pollution caused by the use of activators in chemical activation, making this method suitable for large-scale industrial production of the products of this invention.