| 辉钼矿非氧化焙烧工艺的热力学分析 |
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| 引用本文： | 郭培民,王多刚,赵沛.辉钼矿非氧化焙烧工艺的热力学分析[J].有色金属(冶炼部分),2010(2). |
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| 作者姓名： | 郭培民 王多刚 赵沛 |
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| 作者单位： | 钢铁研究总院先进钢铁流程及材料国家重点实验室,北京,100081 |
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| 基金项目： | 国家“十一五”科技支撑课题(2006BAE03A12、2006BAE03A05) |
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| 摘 要： | 通过热力学研究了几种非氧化焙烧工艺处理辉钼矿的可行性工艺路线。采用高温真空分解法直接处理辉钼矿得到金属钼粉,可以直接用于炼钢,适宜的分解条件为:温度为1 700~1 900 K以及真空度小于100 Pa;气体产物硫可在392~490 K进行液化回收。选用氧化钙作固硫剂,碳作还原剂还原辉钼矿,可以得到Mo、Mo2C和CaS混合物,适宜的反应温度应控制在1 200 K以上。选用碳酸钠固硫剂,碳作还原剂还原辉钼矿,产物为Mo、Mo2C和Na2S,通过水洗可以得到纯度较高的钼粉,适宜反应温度应控制在900~1 100 K。
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| 关 键 词： | 辉钼矿 非氧化焙烧 真空分解 固硫剂 |
Thermodynamic Analysis on Non-Oxidation of Molybdenite Roasting Process |
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| GUO Pei-min,WANG Duo-gang,ZHAO Pei.Thermodynamic Analysis on Non-Oxidation of Molybdenite Roasting Process[J].Nonferrous Metals(Extractive Metallurgy),2010(2). |
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| Authors: | GUO Pei-min WANG Duo-gang ZHAO Pei |
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| Affiliation: | The State Key Laboratory for Advanced Iron and Steel Processes and Products/a>;Central Iron and Steel Research Institute/a>;Beijing 100081/a>;China |
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| Abstract: | Feasible processes on non-oxidative treatment of molybdenite roasting was studied by thermodynamic analysis.Molybdenum powder for steelmaking can be obtained by the process of high-temperature vacuum decomposition at the conditions of 1 700~1 900 K and <100 Pa,and gaseous sulfur can be recycled by liquefaction method at 392~490 K.Mo,Mo2C and CaS can be produced over 1 200 K when calcium oxide and carbon are used as desulfurization and reduction agents respectively.Mo,Mo2C and Na2S can be obtained at 900~1 1... |
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| Keywords: | Molybdenite Non-oxidative roasting Vacuum decomposition Desulfurization agent |
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