| 纳米稀土固体超强酸SO4^2-／TiO2／La^3＋的制备及催化合成尿囊素的研究 |
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| 引用本文： | 申湘忠,谢善梅,胡婷.纳米稀土固体超强酸SO4^2-／TiO2／La^3＋的制备及催化合成尿囊素的研究[J].湖南人文科技学院学报,2008(2):22-26. |
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| 作者姓名： | 申湘忠 谢善梅 胡婷 |
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| 作者单位： | 湖南人文科技学院化学与材料科学系,湖南,娄底,417000 |
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| 摘 要： | 用纳米稀土固体超强酸 SO42-/TiO2/La3 为催化剂,以尿素和乙二醛为原料合成了尿囊素.考察了原料配比、pH值、活化温度、硫酸浓度对催化剂催化活性,以及原料配比、反应温度、反应时间、催化荆用量对尿囊素合成的影响.
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| 关 键 词： | 尿囊素 纳米 稀土固体超强酸SO42-/TiO2/La3 乙二醛 缩合 |
Preparation of Nano-sized SO42-/TiO2/La3+Rare-earth Solid Superacid and Study on Synthesis of Allantoin |
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| SHEN Xiang-zhong,XIE Shan-mei,HU Ting.Preparation of Nano-sized SO42-/TiO2/La3+Rare-earth Solid Superacid and Study on Synthesis of Allantoin[J].Journal of Hunan Institute of Humanities,Science and Technology,2008(2):22-26. |
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| Authors: | SHEN Xiang-zhong XIE Shan-mei HU Ting |
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| Abstract: | The allantoin was synthesized starting from carbamide and glyoxal by rare-earth nano-sized solid superacid SO2-4/TiO2/La3 .The effect on the rate of materials,pH vaule,baking temperature,soaked concentration of H2SO4 on catalytic activity of catalyst were studied. And the effect of mole ratio of carbamide and glyoxal,reaction temperature,reaction time and catalyst amount on yield was investigated. |
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| Keywords: | allantoin nano-sized rare-earth solid superacid SO2-4/TiO2/La3 glyoxal shrink synthesis |
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