Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (5): 1034-1038.

• 研究简报 • 上一篇    

聚乙二醇对聚合氯化铝制备γ-Al2O3的影响

赵长伟1; 王孝年2; 何劲松1; 王园园1; 栾兆坤1   

  1. 1 State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 2 The Equipment Research Institute of PLA’s Second Artillery, Beijing 100085, China
  • 收稿日期:2011-07-11 修回日期:2012-03-05 出版日期:2012-10-28 发布日期:2012-03-05

Effect of polyethylene glycol on the properties of γ-Al2O3 formation by polyaluminum chloride

ZHAO Changwei1; WANG Xiaonian2; HE Jingsong1; WANG Yuanyuan1; LUAN Zhaokun1   

  1. 1 State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
    2 The Equipment Research Institute of PLA’s Second Artillery, Beijing 100085, China
  • Received:2011-07-11 Revised:2012-03-05 Online:2012-10-28 Published:2012-03-05

摘要： A polyaluminium chloride solution with high Al13 content self-prepared was used as material for preparing the spherical γ-Al2O3 by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al2O3. The physical property was characterized by 27Al NMR (nuclear magnetic resonance) spectra, X-ray diffraction, FT-IR (Fourier transform infrared spectroscopy) and TG-DTA (thermogravimetric-differential thermal analysis). The results showed that surface area, pore volume and pore size of γ-Al2O3 all increased with the increase of polyethylene glycol molecular mass in the experimental research range, and polyethylene glycol 10000 was the most suitable pore forming additive. γ-Al2O3 with surface area of 339 m2•g?1, pore volume of 0.59 cm3•g?1 and pore diameter of 6.9 nm were obtained at 450 °C.

关键词: &, gamma, -Al2O3, polyaluminum chloride, preparation, polyethylene glycol

Abstract: A polyaluminium chloride solution with high Al13 content self-prepared was used as material for preparing the spherical γ-Al2O3 by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al2O3. The physical property was characterized by 27Al NMR (nuclear magnetic resonance) spectra, X-ray diffraction, FT-IR (Fourier transform infrared spectroscopy) and TG-DTA (thermogravimetric-differential thermal analysis). The results showed that surface area, pore volume and pore size of γ-Al2O3 all increased with the increase of polyethylene glycol molecular mass in the experimental research range, and polyethylene glycol 10000 was the most suitable pore forming additive. γ-Al2O3 with surface area of 339 m2•g?1, pore volume of 0.59 cm3•g?1 and pore diameter of 6.9 nm were obtained at 450 °C.

Key words: &, gamma, -Al2O3, polyaluminum chloride, preparation, polyethylene glycol

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