摘要
考察了沸石的预处理、浸泡时间、固液比及改性沸石的干燥温度等活化条件对氟化物处理效果的影响,得到改性沸石的最佳制备情况:在600℃下充分焙烧2 h,沸石和磷酸的反应时间为12 h,磷酸和沸石的液固比为10∶1,磷改性沸石制得后自然风干,可制得除氟率86%的磷改性沸石。
The experiment of the modified zeolite has inspected various conditions on the effect of fluoride treatment in this paper, such as, the pretreatment, soaking time, solid-liquid ratio, the drying temperature of modified zeolite and so on. And the best preparation of modified zeolite is obtained. Then calcined it for 2 h at 600 ℃. It is 12 h that the reaction time of zeolite and the phosphoric acid. The dosage of phosphoric acid is 10： 1. Lastly, phosphorus modified zeolite is dry in natural. Phosphorus modified zeolite with fluoride removal rate of 86% is obtained.
出处
《山西建筑》
2010年第31期168-169,共2页
Shanxi Architecture
关键词
磷改性沸石
除氟
活化条件
phosphorus modified zeolite, fluoride removal, actived condition
