Mineral Phase and Physical Properties of Red Mud Calcined at Different Temperatures

doi:10.1155/2012/628592

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	Mineral Phase and Physical Properties of Red Mud Calcined at Different Temperatures
	Wu, Chuan-sheng 1,2,3,4; Liu, Dong-yan 1,3,4
	2012
发表期刊	Journal of Nanomaterials
ISSN	1687-4110
EISSN	1687-4129
卷号	2012
摘要	Different characterizations were carried out on red mud uncalcined and samples calcined in the range of 100 degrees C-1400 degrees C. In the present paper, the phase composition and structural transition of red mud heated from room temperature are indicated by XRD, TG-DTA, and SEM techniques. The mean particle diameter, density, and bond strength of these samples also have been investigated. The results indicate the decomposition of gibbsite into Al2O3 and H2O between 300 degrees C and 550 degrees C and calcite into CaO and CO2 in the interval of 600-800 degrees C. Tricalcium aluminate and gehlenite are formed in the range of 800-900 degrees C. Combined with the SEM images, the results of physical property testing show that the particle size and the strength each has a continuous rise during the heat treatment from 150 degrees C to 1350 degrees C. But the value of density will undergo a little drop before 450 degrees C and then increases to a higher value at the temperature of 1200 degrees C. These obtained results provide an important base for the further studies of comprehensive utilization of red mud.
DOI	10.1155/2012/628592
收录类别	SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000311172400001
出版者	HINDAWI LTD
原始文献类型	Article
出版地	LONDON
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/3626
专题	重庆电子科技职业大学
作者单位	1.Chongqing Univ, Coll Civil Engn, Chongqing 400044, Peoples R China; 2.Chongqing Vocat Inst Engn, Coll Civil Engn, Chongqing 400037, Peoples R China; 3.Chongqing Univ, Lab New Technol Construct Cities Mt Area, Chongqing 400045, Peoples R China; 4.Minist Educ, Chongqing 400045, Peoples R China
推荐引用方式 GB/T 7714	Wu, Chuan-sheng,Liu, Dong-yan. Mineral Phase and Physical Properties of Red Mud Calcined at Different Temperatures[J]. Journal of Nanomaterials,2012,2012.
APA	Wu, Chuan-sheng,&Liu, Dong-yan.(2012).Mineral Phase and Physical Properties of Red Mud Calcined at Different Temperatures.Journal of Nanomaterials,2012.
MLA	Wu, Chuan-sheng,et al."Mineral Phase and Physical Properties of Red Mud Calcined at Different Temperatures".Journal of Nanomaterials 2012(2012).

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