| 陶瓷级碳化硅微粉提纯试验研究 |
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| 引用本文： | 赵平,张艳娇,刘广学,邵伟华,常学勇.陶瓷级碳化硅微粉提纯试验研究[J].非金属矿,2009,32(4). |
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| 作者姓名： | 赵平 张艳娇 刘广学 邵伟华 常学勇 |
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| 作者单位： | 中国地质科学院郑州矿产综合利用研究所,郑州,450006;国家非金属矿资源工程技术利用研究中心,郑州,450006 |
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| 摘 要： | 某常压烧结陶瓷级碳化硅微粉要求原料平均粒度D50<0.8μm,对原料中杂质铁、碳、硅的含量要求较严格,通过选矿和化学处理方法可使其杂质含量达到标准需求,超细磨前利用浮选分离游离碳,采用脉动高梯度强磁选机可除去70%以上铁矿物,加烧碱化学处理除去单质硅和游离硅,细磨后用混合酸进一步降低铁含量,得到杂质含量合格的产品.
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| 关 键 词： | 碳化硅 选矿 提纯 陶瓷原料 |
Experimental Study on Purification of Ceramic Grade SiC Powder |
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| Zhao Ping,Zhang Yanjiao,Liu Guangxue,Shao Weihua,Chang Xueyong.Experimental Study on Purification of Ceramic Grade SiC Powder[J].Non-metallic Mines,2009,32(4). |
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| Authors: | Zhao Ping Zhang Yanjiao Liu Guangxue Shao Weihua Chang Xueyong |
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| Affiliation: | Zhao Ping1,2 Zhang Yanjiao1,2 Liu Guangxue1,2 Shao Weihua1,2 Chang Xueyong1,2(1 Zhengzhou Institute of Multipurpose Utilization of Mineral Resources,CAGS,Zhengzhou 450006,2 China National Engineering Research Center for Utilization of Industrial Minerals,Zhengzhou 450006) |
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| Abstract: | The quality requirements of atmospberic-pressure-sintered ceramic grade silicon carbide are as following: the average particle size should be less than 0.8μm, the content of impurities, such as iron,carbon and silicon, should be low. Through beneficiation and chemical processing the content of impurities can meet the requirement. In this experiment the carbon was removed with flotation before ultrafine milling, 70% of iron was separated by high gradient magnetic separator, metal and free silicon were removed by NaOH, and trace iron was removed by mixed acid after fine milling, and the qualified product could be obtained finally. |
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| Keywords: | silicon carbide mineral processing purification ceramic raw material |
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