| 热分解对镍化合物粉末粒度与形貌的影响 |
| |
| 引用本文： | 黄凯,郭学益,张多默.热分解对镍化合物粉末粒度与形貌的影响[J].湿法冶金,2010,29(1):16-19. |
| |
| 作者姓名： | 黄凯 郭学益 张多默 |
| |
| 作者单位： | 1. 北京科技大学,冶金与生态工程学院,北京,100083
2. 中南大学,冶金科学与工程学院,湖南,长沙,410083 |
| |
| 摘 要： | 对尿素均匀沉淀、碳酸铵沉淀和草酸盐沉淀所得镍的化合物粉末及其热处理样品，采用SEM、XRD、激光粒度分析仪和氮吸附仪进行表征。结果表明：不同沉淀体系形成的粉末粒度和形貌等各不相同，且在热分解过程中的变化行为也不同。较低温度下（如400℃）的热分解产物较好地继承了沉淀粉末的原有特征；温度过高时（如900℃）则易导致显著的烧结团聚。
|
| 关 键 词： | 镍化合物 沉淀 热分解 粉末特征 |
Effect of Pyrolysis on Particle Size and Morphology of Precipitated Nickel Compounds |
| |
| HUANG Kai,GUO Xue-yi,ZHANG Duomo.Effect of Pyrolysis on Particle Size and Morphology of Precipitated Nickel Compounds[J].Hydrometallurgy of China,2010,29(1):16-19. |
| |
| Authors: | HUANG Kai GUO Xue-yi ZHANG Duomo |
| |
| Affiliation: | HUANG Kai1,GUO Xue-yi2,ZHANG Duo-mo2(1.School of Metallurgical , Ecological Engineering,University of Science , Technology Beijing,Beijing 100083,China,(2.School of Metallurgical Science , Engineering,Central South University,Changsha,Hu\'nan 410083,China) |
| |
| Abstract: | The nickel compounds precipitated by homogenous precipitation with urea,fast precipitation with ammonium carbonate,or interface induced precipitation with solid oxalate acid,respectively,and their pyrolysis products,are all used for investigating their particle size distribution and morphology.It is found that the precipitated powders from different solution represent different particle characteristics and specific evolution behavior during pyrolysis process.It can be confirmed that at low temperature(e.g.4... |
| |
| Keywords: | precipitated nickel compounds pyrolysis behavior evolution of powder characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
