| New technique of comprehensive utilization of spent Al2O3 -based catalyst |
| |
| 作者姓名： | 冯其明 陈云 邵延海 张国范 欧乐明 卢毅屏 |
| |
| 作者单位： | School of Resources Processing and Bioengineering, Central South University. Changsha 410083, China |
| |
| 基金项目： | Project（2003UDBEA00C020） supported by the Collaborative Project of School and Province of Yunnan Province |
| |
| 摘 要： | A new technology was developed to recover multiple valuable elements from the spent Al2O3-based catalyst by X-ray phase analysis and exploratory experiments. The experimental results show that in the condition of roasting temperature of 750 ℃ and roasting time of 30 min, molar ratio of Na2O to Al2O3 of 1.2, the leaching rates of alumina, vanadium and molybdenum in the spent catalyst are 97.2%, 95.8% and 98.9%, respectively. Vanadium and molybdenum in sodium aluminate solution can be recovered by precipitators A and B, and the precipitation rates of vanadium and molybdenum are 94. 8% and 92. 6%. Al（OH）3 was prepared from sodium aluminate solution in the carbonation decomposition process, and the purity of Al2O3 is 99. 9% after calcination, the recovery of alumina reaches 90. 6% in the whole process; the Ni-Co concentrate was leached by sulfuric acid, a nickel recovery of 98. 2% and cobalt recovery over 98.5% can be obtained under the experimental condition of 30% H2SO4, 80 ℃, reaction time 4 h, mass ratio of liquid to solid 8, stirring rate 800 r/min.
|
| 关 键 词： | 催化剂 钒 综合利用 钼 浸出速率 氧化铝 |
| 文章编号： | 1005-9784（2006）02-0151-05 |
| 收稿时间： | 2005-06-11 |
| 修稿时间： | 2005-07-15 |
New technique of comprehensive utilization of spent Al2O3-based catalyst |
| |
| Feng Qi-ming , Chen Yun , Shao Yan-hai , Zhang Guo-fan , Ou Le-ming and Lu Yi-ping.New technique of comprehensive utilization of spent Al2O3 -based catalyst[J].Journal of Central South University of Technology,2006,13(2):151-155. |
| |
| Authors: | Feng Qi-ming Chen Yun Shao Yan-hai Zhang Guo-fan Ou Le-ming and Lu Yi-ping |
| |
| Affiliation: | (1) School of Resources Processing and Bioengineering, Central South University, 410083 Changsha, China |
| |
| Abstract: | A new technology was developed to recover multiple valuable elements from the spent Al2O3-based catalyst by X-ray phase analysis and exploratory experiments. The experimental results show that in the condition of
roasting temperature of 750 °C and roasting time of 30 min, molar ratio of Na2O to Al2O3 of 1.2, the leaching rates of alumina, vanadium and molybdenum in the spent catalyst are 97.2%, 95.8% and 98.9%, respectively.
Vanadium and molybdenum in sodium aluminate solution can be recovered by precipitators A and B, and the precipitation rates
of vanadium and molybdenum are 94.8% and 92.6%. Al(OH)3 was prepared from sodium aluminate solution in the carbonation decomposition process, and the purity of Al2O3 is 99.9% after calcination, the recovery of alumina reaches 90.6% in the whole process; the Ni-Co concentrate was leached
by sulfuric acid, a nickel recovery of 98.2% and cobalt recovery over 98.5% can be obtained under the experimental condition
of 30% H2SO4, 80°C, reaction time 4 h, mass ratio of liquid to solid 8, stirring rate 800 r/min.
Foundation item: Project(2003UDBEA00C020) supported by the Collaborative Project of School and Province of Yunnan Province |
| |
| Keywords: | spent Al2 O3-based catalyst vanadium molybdenum comprehensive utilization roasting with sodium leaching rate |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
|
