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详细研究了丙烷氨氧化催化剂载体SIAL的组成及其相对合且对反应结果的影响。实验发现：载体中Al2O3与SiO2的重量比存在一个最佳值，当Al2O3／SiO2在2．0～2．5时，丙烯腈的收率取得最大值；随着催化剂中载体相对含量的增大，其反应效果得到明显的改观：丙烷的转化率随载体含量的增加而增大，而丙烯腈的选择性在载体／活性组分（重量比）在三1．5附近达到最大，此时COx的选择性最小，当该比例在1．5～2．5时丙烯腈的收率达到最大值。
The effects of composition of propane ammoxidation catalyst support SIAL and its relative combination on the reaction results were studied in detail. It was found that the weight ratio of Al2O3 to SiO2 in the carrier had an optimum value. When the content of Al2O3 / SiO2 was in the range of 2.0-2.5, the yield of acrylonitrile reached the maximum value. With the increase of the relative content of carrier in the catalyst , The reaction effect was significantly improved: the conversion of propane increased with the carrier content increased, while the selectivity of acrylonitrile in the carrier / active component (weight ratio) reaches the maximum in the vicinity of 1.5, when COx The selectivity of the smallest, when the ratio of 1.5 to 2.5 in the yield of acrylonitrile maximum.