采用添加含硅助剂的方法，可有效抑制碱性体系中分子筛的溶解流失，大幅度延长催化剂稳定运转周期。

Adding an additive into the solution could inhibit the dissolution erosion of silicon from the catalyst, and the stable running period of the catalyst was prolonged.

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目的解决经典化学法测定硅铁中杂质元素周期长、操作复杂、步骤繁琐的问题。

Aim To resolve the problems of long period, complex operation and many steps when determining impure elements in ferrosilicon by classic methods.

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测试结果表明，利用腐蚀方法得到的硅的(111)晶面周期结构平整光滑。

The results of testing show that the silicon (111) crystal plane is very smoothing by etching method.

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