改进热过滤操作提高学生实验的易操作性

Improving the Process of Heat Filtration Makes it Easier for Student to Operate the Experiment

改进的热过滤操作 ,通过采用对滤液直接加热产生蒸汽的方式 ,充分利用了蒸汽的热能使漏斗中的待滤液保持高温 ,使重结晶的热过滤操作顺利、简单易行 ,且重结晶的收率提高 .

It is an improved heat filter operation by means of heating the filter liquor directly to produce steam. It has fully utilized the heat energy of vapor to keep liquor in funnel at a high temperature and to facilitate the heat filtration in a recrystalization process. It is simple and easy and has increased the recovery of recrystalization.