微通道内表面单孔的空心硅铝复合微球的制备（英文）

Si/Al composite hollow spheres with a surface hole were prepared with the co-axial microchannel in a one-step method. It is easy to use the technique for size control and continuous operation. At Si/Al ratio between 4 and 5, a hole forms on the surface, due to the fast gelation process and high visc...

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Bibliographic Details
Published in中国化学工程学报：英文版 no. Z1; pp. 1352 - 1356
Main Author 王晋媛 王玉军 骆广生
Format Journal Article
LanguageEnglish
Published 2014
Subjects
hole
Hollow
Microchannel
Silica-alumina
Single
Sphere
surface
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Summary:Si/Al composite hollow spheres with a surface hole were prepared with the co-axial microchannel in a one-step method. It is easy to use the technique for size control and continuous operation. At Si/Al ratio between 4 and 5, a hole forms on the surface, due to the fast gelation process and high viscosity of the sol. Scanning electron microscopy, nitrogen adsorption–desorption isotherms, and mercury intrusion method are used to characterize the samples. The hole size is 40–150 μm and the particle size is 450–600 μm. The size can be adjusted by the flow rate of the oil phase.
Bibliography:Jinyuan Wang;Yujun Wang;Guangsheng Luo;State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University
11-3270/TQ
ISSN:1004-9541
2210-321X