摘要
本文采用自制升华炉制备升华三氧化钼。考察了影响升华率的主要因素其中包括升华温度、升华时间、原料品位、料层厚度等对升华氧化钼制备过程升华率的影响。结果显示,同种原料,升华率随着温度的升高,时间的延长逐渐增加;其他条件不变的情况下,料层厚度对物料的升华率影响不明显;通过对比不同升华温度所得产品的化学指标,得到产品中K含量随着升华温度的降低呈现降低趋势。通过透射电镜分析,得到升华三氧化钼为球形,形貌规整统一。
We used the self-made furnace to prepare the sublimation of Mo O3. The main factors affecting the sublimation rate were investigated,including the sublimation temperature,sublimation time,raw material grade,charge amount,etc. The results showed that for the same material,sublimation rates increased with the increasing of temperature and time gradually; While the other conditions remain unchanged,charge amount of the sublimation rate effects on the material is not obvious; by comparing different sublimation temperature of the product obtained from the chemical index,K content in the product is showed a decreasing trend with sublimation temperature reduction. By TEM,the sublimation of Mo O3 is spherical,uniform morphology.
出处
《中国钼业》
2016年第1期44-47,共4页
China Molybdenum Industry
关键词
升华
三氧化钼
升华率
sublimation
molybdenum trioxide
sublimation rate
