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。
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.
方法以淫羊藿苷和总黄酮的提取转移率为指标，采用正交试验法，考察乙醇浓度、乙醇倍量、提取时间和提取次数对提取效果的影响。
METHODS With the transferring rate as index, the optimum extraction condition for the alcohol concentration, the volume, extra ting time and times were selected by orthogonal design.
方法：采用正交试验法，以总固体物的量和总黄酮为指标，对排石合剂的提取工艺进行了筛选。
Method: With the amounts of total solid substance and total flavone as indexes, the extraction methods were screened by orthogonal design.
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