废聚苯乙烯泡沫制备粉状活性炭

Preparation of powdered activated carbon with waste foam polystyrene

针对白色污染，研究了以废聚苯乙烯泡沫为原料制备粉状活性炭的工艺过程。采用化学活化法进行了系列实验，活化时间为120min，活化温度450～700℃，活化剂用量50％-500％。实验结果表明，采用磷酸作为活化剂，活化剂IR：原料为2：1-4：1，产品粉状活性炭性能良好。BET比表面积和亚甲基蓝吸附值分别达到1000m^2／g与10．0mL/0．1g以上。产品平均得率在65％以上，远远高于传统原料木材。

Powdered activated carbons was prepared from waste foam polystyrene by chemical method. Activation time ： 120 min, activation temperature range ：450 - 700 ℃, activation agent range ： 50% - 500%, raw materials range from 2： 1 to 4 ： 1. Phosphoric acid is used as activating agent. The results showed that： the BET surface area is larger than 1 000 m^2/g and the methylene blue adsorption value is higher than 10.0 mL/0. 1 g. The average yield is above 65% ,much higher than the traditional materials wood.