An experiment of stability of diatomaceous silica was performed. The results show that pH value and temperature dominant......

系统地论述了活性ＳｉＯ２对湿法磷酸生产的结晶，过滤，设备腐蚀，结垢以及净化等操作过程的影响．同时报导了用硅藻土脱氟的试验研究．......