The present invention is a method for preparing a functional inorganic filler using silica, and prepared a high functional porous composite particles by dry grinding method using a planetary mill, a kind of high energy mill, this method is a porous catalyst carrier in various catalyst industries In addition to performing the role smoothly, it is to prepare a material that can improve the flowability and mixing properties when used with various fillers.;In the present invention, the high-energy planetary mill type was used as the grinding machine, and the porous composite particles were produced by performing dry grinding by adjusting the loading amount of the grinding media ball, adjusting the sample filling rate, and controlling the grinding time.
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