The fluorine content in cleaned coal will be nearly same as its original matrix by two grade defluorination treatment.
用二级脱氟处理方法可使高纯煤中氟含量达到实际应用所允许的要求，接近原煤中的氟含量。
The mechanisms and some affect factors for chemical disposal defluorination of wet-process phosphoric acid were introduced.
介绍了湿法磷酸化学法脱氟的脱氟机理和影响脱氟率的多种因素。
Some theoretical search has been made in this paper on defluorination of potable water by electrocoagulation, characteristics are introduced.
本文探索了电凝聚饮用水除氟的一些理论。介绍了此法的工艺特点。
Using paraffin amine as dissolvent and kerosene as diluent for the purification and defluorination of wet process phosphoric acid by solvent extraction was studied.
为对湿法磷酸进行净化脱氟 ，用胺类溶剂作萃取剂 ，煤油作稀释剂 ，对湿法磷酸进行了溶剂萃取脱氟的工艺研究。
Hydroxyapatite method has advantage over the methods such as actived alumina, bone char and electrodialysis commonly used in defluorination of drinking water. It is for this re...
羟基磷灰石的降氟方法优于目前较普及的活性氧化铝、骨碳和电渗析除氟法。
The phosphor yield of domestic feed grade calcium monophosphate production processes is low, and there are a few production plants using the phosphoric acid concentration defluorination method.
国内饲料磷酸氢钙生产工艺的磷得率低，磷酸浓缩脱氟法的生产厂少。
The phosphor yield of domestic feed grade calcium monophosphate production processes is low, and there are a few production plants using the phosphoric acid concentration defluorination method.
国内饲料磷酸氢钙生产工艺的磷得率低，磷酸浓缩脱氟法的生产厂少。
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