磷酸法制备山楂籽粉末活性炭技术的研究

摘要

In this paper, the activated carbon preparation technology from hawthorn seeds was investigated. Firstly, the related factors that can influence the preparation of activated carbon were run. According to the Single-factor experiment, the optimal condition was established using Plackett-Burman design and Box-Benhnken design. The final result indicated that the best condition was impregnated time 37.3 h, L/P 1∶1.1, the density of phosphoric acid 72.8%, carbonized time1.6 h, carbonized temperature 500℃, the product yield and methylene blue decolorization were 41.11%, 14 mL, respectively.%运用响应面法对磷酸浸泡制备山楂籽粉末活性炭的工艺条件进行了优化。采用单因素试验、Plackett-Burman设计及Box-Behnken设计，确定了山楂籽粉末活性炭最佳制备条件：浸泡时间37.3 h、固液比1∶1.1（1 g山楂籽粉末∶1.1 mL磷酸）、磷酸浓度72.8%、碳化时间1.6 h，炭化温度500℃。该条件下山楂籽活粉末性炭的产率为41.11%，亚甲基蓝的吸附值为14 mL。