摘要
对物理化学实验-活性炭吸附醋酸实验进行改进,探索影响实验因素,利用Design-expert8.0软件对实验条件进行优化。利用单因素实验考察温度、活性炭粒度大小、吸附时间、活化时间对吸附量的影响,考察改进前后的对比,确定最佳实验条件。温度升高,吸附能降低,搅拌效果比振荡效果更好,粒度越小,吸附能力越强,但是粒度过小,过滤速度慢,最终确定粒度大小40~60目、搅拌60 min吸附趋于平衡,80℃活化时间控制在120 min以上,实验效果最佳。此实验改进斱案仪器设备简单,操作简便,数据准确,值得在全院范围内进行推广。
In order to improve the experiment of physical chemistry experiment-the adsorption of acetic acid on activated carbon, the influencing factors were explored, and the experimental conditions were optimized by using the software of Design-exchange 8.0. At first, the effect of temperature, particle size, adsorption time and activation time on the adsorption was investigated by single factor experiments. The results showed that, the temperature increased,the adsorption energy decreased, and the mixing effect was better than that of the oscillation. The smaller the particle size, the stronger the adsorption ability, but the smaller the particle size, the slower the filtration speed, and the suitable size of the particle was 40~60 and suitable stirring time was 60 min. When the activation time at 80 ℃ was above 120 min, the experimental effect was the best. The improved experiment is simple, simple and accurate, and is worth popularizing.
引文
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