利用桐籽壳制备活性炭的工艺研究

对以桐籽壳为原料、用氯化锌法制备活性炭的工艺进行了研究，采用正交试验优化了工艺参数.最佳工艺参数为：料液比质量比1∶2.0、氯化锌质量分数为50%、活化时间60 min、活化温度为60 ℃.在此工艺条件下所制备的活性炭，其碘吸附值为986.35 mg/g，亚甲基蓝吸附值为178.23 mg/g，表观密度为0.423 6 g/mL.

Study on the Process of Activated Carbon Preparation from Tung Shell

The process of activated carbon preparation from tung shell was discussed in the presence of ZnCl2.Based on the orthogonal test,the optimal condition was obtained as follows：the ratio of tung shell to solution（w/w） is 1∶20;the mass fraction of ZnCl2 solution is 50%;the tung shell is treated for 60 min at 60 ℃.The obtained activated carbon has iodine absorption value of 986.35 mg/g,methyl blue absorption value of 178.23 mg/g and apparent density of 0.423 6 g/mL.