Preparation and Characterization of γ-Al2O3 by Polyaluminum Chloride with High Al13 Content

›› 2010, Vol. 18 ›› Issue (2): 333-336.

• PRODUCT ENGINEERING AND CHEMICAL TECHNOLOGY • Previous Articles Next Articles

Preparation and Characterization of γ-Al₂O₃ by Polyaluminum Chloride with High Al₁₃ Content

ZHAO Changwei¹, WANG Xiaonian², HE Jinsong¹, LUAN Zhaokun¹, PENG Xianjia¹, JIA Zhiping¹

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:2009-08-28 Revised:2009-12-25 Online:2010-04-28 Published:2010-04-28
Supported by:
Supported by National Natural Science Foundation of China(50708109,40673003);the Scientific Research Foundation for the Returned Overseas Chinese Scholars State Education Ministry(ITLXHG2009071702);the Special Fund from the State Key Laboratory of Environmental Aquatic Chemistry(09Y02ESPCR)

Preparation and Characterization of γ-Al₂O₃ by Polyaluminum Chloride with High Al₁₃ Content

赵长伟¹, 王孝年², 何劲松¹, 栾兆坤¹, 彭先佳¹, 贾智萍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

通讯作者: ZHAO Changwei,E-mail:zhaocw@rcees.ac.cn
基金资助:
Supported by National Natural Science Foundation of China(50708109,40673003);the Scientific Research Foundation for the Returned Overseas Chinese Scholars State Education Ministry(ITLXHG2009071702);the Special Fund from the State Key Laboratory of Environmental Aquatic Chemistry(09Y02ESPCR)

Abstract

Abstract: In this paper a polyaluminum chloride solution with high Al₁₃ content was prepared and used as raw material for preparation of γ-Al₂O₃₃·H₂O and NaOH had little effect on the alumina sample formation.The impurities of NH₄Cl and NaCl in solution can be removed through repeated washing by EDX analysis.Calcination temperature had a significant effect on alumina crystal phase.The alumina sample can transform completely toγ-Al₂O₃ in the subsequent heating from 600℃ to 800℃.It is very interesting that Al₁₃ can be existed inγ-Al₂O₃ phase even after calcinations.The results indicate that polyaluminum chloride with high Al₁₃ content is an effective material to prepareγ-Al₂O₃.

Key words: γ-Al₂O₃, polyaluminum chloride, preparation, Al₁₃

摘要： In this paper a polyaluminum chloride solution with high Al₁₃ content was prepared and used as raw material for preparation of γ-Al₂O₃₃·H₂O and NaOH had little effect on the alumina sample formation.The impurities of NH₄Cl and NaCl in solution can be removed through repeated washing by EDX analysis.Calcination temperature had a significant effect on alumina crystal phase.The alumina sample can transform completely toγ-Al₂O₃ in the subsequent heating from 600℃ to 800℃.It is very interesting that Al₁₃ can be existed inγ-Al₂O₃ phase even after calcinations.The results indicate that polyaluminum chloride with high Al₁₃ content is an effective material to prepareγ-Al₂O₃.

关键词: γ-Al₂O₃, polyaluminum chloride, preparation, Al₁₃

ZHAO Changwei, WANG Xiaonian, HE Jinsong, LUAN Zhaokun, PENG Xianjia, JIA Zhiping. Preparation and Characterization of γ-Al₂O₃ by Polyaluminum Chloride with High Al₁₃ Content[J]. , 2010, 18(2): 333-336.

赵长伟, 王孝年, 何劲松, 栾兆坤, 彭先佳, 贾智萍. Preparation and Characterization of γ-Al₂O₃ by Polyaluminum Chloride with High Al₁₃ Content[J]. , 2010, 18(2): 333-336.

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Preparation and Characterization of γ-Al₂O₃ by Polyaluminum Chloride with High Al₁₃ Content

Preparation and Characterization of γ-Al₂O₃ by Polyaluminum Chloride with High Al₁₃ Content

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