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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 528The Preparation of High Alumina Content Alumina...

The Preparation of High Alumina Content Alumina Sol

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Abstract:

The alumina sol with high content of Al₂O₃was prepared by peptizing aluminum hydroxide powder. The properties of the alumina sol were characterized by Fourier transform-infrared (FT-IR) spectrum, zeta potential analyzer, X-ray diffraction (XRD) and Transmission electron microscope (TEM). The results show that the sol with high content of Al₂O₃can be easily prepared by peptizing the soluble aluminum hydroxide powder, the smaller of the size of aluminum hydroxide powder, the higher of the aluminum content of the alumina sol. Two-step peptization process is optimum, the effect of peptization aluminum hydroxide powder using AlCl₃ :HCl=1:4 solution as peptizer is best, the alumina sol sample with pH value of 2.5 and alumina content 11% had good stability. A great application potential of the high alumina content sol has been displayed in preparing FCC catalysts.

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Materials and Mechanical Engineering

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Periodical:

Applied Mechanics and Materials (Volume 528)

Pages:

118-126

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.528.118

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Online since:

February 2014

Authors:

Jian Jun Yin*, Min Li, Zhong Dong Zhang, Dong Wang, Shuai Shao, Xiong Hou Gao

Keywords:

Alumina Sol, Aluminum Hydroxide Powder, Peptization Process, Peptizer

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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