| 由白钨酸氢还原制取超细钨粉的工艺研究 |
| |
| 引用本文： | 蔡万玲,张玉英.由白钨酸氢还原制取超细钨粉的工艺研究[J].中国钨业,2010,25(3):27-29. |
| |
| 作者姓名： | 蔡万玲 张玉英 |
| |
| 作者单位： | 1. 新疆教育学院理学分院,新疆,乌鲁木齐,830043
2. 新疆农业大学,新疆,乌鲁木齐,830052 |
| |
| 摘 要： | 以钨酸钠和盐酸为原料,乙酸作助剂,在超声条件下,得到钨酸胶体粒子。通过氢还原制取超细钨粉末,研究了还原温度、装舟量和氢气流量对制取钨粉粒度的影响。结果表明:还原温度是制取超细钨粉的关键因素,在适当的工艺条件下,可以使用钨酸钠制得超细钨粉。
|
| 关 键 词： | 钨酸 氢还原 超细钨粉 |
On the Production Technology of Ultrafine Tungsten Powder Out of White Tungstic Acid by Hydrogen Reduction |
| |
| CAI Wan-ling,ZHANG Yu-ying.On the Production Technology of Ultrafine Tungsten Powder Out of White Tungstic Acid by Hydrogen Reduction[J].China Tungsten Industry,2010,25(3):27-29. |
| |
| Authors: | CAI Wan-ling ZHANG Yu-ying |
| |
| Affiliation: | 1. Department of Science, Xinjiang Education Institute, Urumqi 830043, Xinjiang, China; 2.College of Chemical Engineering, Xinjiang Agricultural University, Urumqi 830052, Xinjiang, China) |
| |
| Abstract: | The nano-particles of the tungstie acid were synthesized out of Na2WO4·2H2O and HCl by ultrasonic method using CH3COOH as addictive. Tungsten nano-powder was prepared by hydrogen reduction from white tungstic acid. The effects of temperature, boat charge and hydrogen flow-rate on granularity of tungsten powder were studied. The results showed that reduction temperature was critical for the preparation of tungsten powder from white tungstic acid under appropriate technological conditions. |
| |
| Keywords: | tungstenic oxide hydrogen reduction ultrafine tungsten powder |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
