The results show that among the three kinds of seeds, the activated red mud has the best desilication effect and the silicon index of desilication solution can meet the requirement.

• 试验表明:活化赤泥的脱硅效果优于拜耳法末次赤泥及溶出赤泥,且脱硅溶液硅量指数可达到指标要求。