摘要
用扫描电镜观察了高纯三氧化钼的形貌 ,高纯三氧化钼是长条状的单颗粒聚集成的团聚体。用激光粒度仪的干法测定了高纯三氧化钼团聚体的激光粒度分布 ,用水作分散剂测定了高纯三氧化钼分散体的激光粒度分布 ,结果表明高纯三氧化钼的激光粒度分布值与电镜测量的颗粒及颗粒团尺寸一致 ,这样的测试方法能全面正确地反映高纯三氧化钼粒度的特征。
The SEM morphology of high-purity trioxide molybdenum powder was observed. High-purity trioxide molybdenum powder was agglomerated particles which consisted of primary strip particles. The particle-size distribution of agglomerated particles was measured using dry-dispersion method of Malvern Mastersizer 2000, and deagglomerated particle-size distribution was determined with water as dispersant. The results showed that the laser particle-size distribution was same as that examined by SEM, and this kind of method could completely and accurately analyze characteristics of particle size of high-purity trioxide molybdenum powder.It was discussed that the laser particle-size distribution of high-purity trioxide molybdenum powder influenced subsequent t hydrogen -reduction process and quality of molybdenum powder.
出处
《中国钼业》
2003年第2期67-70,共4页
China Molybdenum Industry
关键词
高纯三氧化钼
激光粒度分布
团聚颗粒
分散颗粒
High purity trioxide molybdenum,Laser particle-size distribution,Agglomerated particle,Deagglomerated particle
