采用SHS还原法以CaWO4, Mg粉为原料制备钨粉. 研究了CaWO4-Mg合成过程中的物理化学变化, 压坯压力、稀释剂和浸出对燃烧过程和产物的影响. 随着压坯压力的增加, 燃烧产物的空隙率和钨粉颗粒的粒度呈递减趋势. 添加稀释剂(钨粉), 钨粉颗粒的粒度有所增大. 通过进一步碱浸可提高钨粉的纯度. 最终产物的成分光谱分析和粒度分析结果表明: 可得到平均粒径为0.87 μm, 比表面积1.09 m2/g, 纯度≥99.0%的钨粉.
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