Method for recycling silicon carbide waste
The invention discloses a silicon carbide waste recycling method which comprises the following steps that S100, silicon carbide waste generated in the process of synthesizing high-purity silicon carbide powder through a PVT method is collected, and the silicon carbide waste is selected from one or t...
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| creator | LUO YEDONG HUANG SHIXI QU YONGJIE HONG ZHIWEI ZHAO XINTIAN ZHANG WENZHONG HAO HAN ZHU ZHENWANG ZHOU XUN |
| description | The invention discloses a silicon carbide waste recycling method which comprises the following steps that S100, silicon carbide waste generated in the process of synthesizing high-purity silicon carbide powder through a PVT method is collected, and the silicon carbide waste is selected from one or two of first waste and second waste, the first waste material is powder with the particle size of 5-80 meshes obtained by grinding and screening waste graphite paper in the process of synthesizing high-purity silicon carbide powder by a PVT method, and the second waste material is silicon carbide fine material with the particle size of less than 40 meshes obtained by screening in the process of synthesizing the high-purity silicon carbide powder by the PVT method; s200, mixing the silicon carbide waste, silicon powder and graphite powder according to the molar ratio of Si to C being (1: 1)-(1.5: 1) to obtain a mixed material; and S300, synthesizing the high-purity silicon carbide powder by taking the mixed material |
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| title | Method for recycling silicon carbide waste |
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