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| 氧化钒制取碳化钒的热力学分析 | |
| 引用本文： | 吴恩熙,颜练武,胡茂中. 氧化钒制取碳化钒的热力学分析[J]. 硬质合金, 2004, 21(1): 1-4 |
| 作者姓名： | 吴恩熙 颜练武 胡茂中 |
| 作者单位： | 1. 中南大学粉末冶金国家重点实验室,长沙,410083 2. 中南大学粉末冶金国家重点实验室,长沙,410083;株洲硬质合金集团有限公司,株洲,412000 3. 株洲硬质合金集团有限公司,株洲,412000 |
| 基金项目： | 国家863资助项目(2002AA331090)。 |
| 摘 要： | 采用热力学的方法对以五氧化二钒为原料制取碳化钒的工艺过程进行了分析,分析表明:钒氧化物的转化过程中遵守逐级还原理论。钒氧化物碳化过程中,不转化为金属钒,直接转化为碳化钒。在钒氧化物的转化过程中,应尽可能使其转化为二氧化钒。若采用气相还原碳化的方法,可通过调节气体的流量、配比、还原与碳化工艺参数进行质量控制。 |
| 关 键 词： | 五氧化二钒 碳化钒 二氧化钒 还原碳化 |
| 修稿时间： | 2003-09-17 |
Thermadynamic Analysis of Using V2O5 as Raw Material to Obtain VC |
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| Enxi Wu Lian WuYan Mao ZhongHu. Thermadynamic Analysis of Using V2O5 as Raw Material to Obtain VC[J]. Cemented Carbide, 2004, 21(1): 1-4 | |
| Authors: | Enxi Wu Lian WuYan Mao ZhongHu |
| Abstract: | In this paper,the producing process of using V 2 O 5 as raw material to obtain VC was analysised through the means of thermadynamic.The analysis identified that in the process of convertion of V oxides,convertion abide by the principle of reduction step by step.in the process of carburization,the v oxides directly convert into VC rather than V.for the convenience of subsequent process,V 2 O 5 should convert into VO 2 as soon as possible.If take the means of the gas carburizations,it can modify the process of carburization by moderate the flow rate of gas and gas ratio. |
| Keywords: | V 2 O 5 VC VO 2 reduction-carburization |
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