| 水滑石晶体长厚比及晶粒尺寸控制方法研究 |
| Studies on Control of the Aspect Ratio and Particle Size of Hydrotalcite |
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| 摘要: |
| 关键词: 层状双金属氢氧化物 过饱和度 晶粒尺寸 晶化 |
| 基金项目: |
| Abstract: Solutions of Mg(NO3)2·6H2O, Al(NO3)3·9H2O, NaOH and Na2CO3 were mixed in a rotating liquid-memb- rane reactor. The crystal growth process of Mg-Al-CO3 hydrotalcite was then studied by adding different amounts of water to the resulting slurry during the crystallizing process. The initial 6 hours of the crystallization was found to be the key period controlling crystal growth. Adding 150 to 250mL of water to the reaction system at the beginning of crystallization affords Mg-Al-CO3 hydrotalcite with relatively small particle size and large aspect ratio. |
| Keywords: layered double hydroxides supersaturation degree particle size crystallization |
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| 冯桃,李殿卿,Evans D.G.,段雪.水滑石晶体长厚比及晶粒尺寸控制方法研究[J].无机化学学报,2002,18(11):1156-1160. |
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