Magnesium carbonate precipitation under the influence of polyacrylamide

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	Magnesium carbonate precipitation under the influence of polyacrylamide
	Guo, Min1,2 ; Li, Quan1 ; Ye, Xiushen1,2 ; Wu, Zhijian1,3
	2010-06-15
发表期刊	POWDER TECHNOLOGY
ISSN	0032-5910
卷号	200 期号:1-2 页码:46-51
关键词	Magnesium Carbonate Polyacrylamide Precipitation Morphology
摘要	The precipitation of magnesium carbonate by the reaction of MgCl(2) with Na(2)CO(3), under the influence of polyacrylamide (PAM) was studied. Factors that affect the precipitation of magnesium carbonate, such as PAM concentration, reaction temperature, and stirring speed, were investigated comprehensively. Scanning electron microscopy (SEM) and X-ray powder diffraction (XRD) methods were used to characterize the carbonate precipitate products. PAM concentration, reaction temperature, and stirring speed have significant effects on the morphology of the carbonate products. The product weight increases slightly with the increase in the amount of PAM added, but decreases slightly with the increase in the reaction temperature, and is almost irrelevant to the stirring speed. The products obtained at 25 and 50 degrees C were all identified as nesquehonite, MgCO(3 center dot)3H(2)O. At 75 degrees C an unidentified amorphous product forms. The use of an additive is found to be an effective method to adjust the morphology of magnesium carbonate. The information gained in this study would be helpful for the preparation of magnesium carbonate or other magnesium compounds with specific morphology. (C) 2010 Elsevier B.V. All rights reserved.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/1915
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Huaqiao Univ, Coll Mat Sci & Engn, Key Lab Funct Mat Fujian Higher Educ, Quanzhou 362021, Peoples R China
推荐引用方式 GB/T 7714	Guo, Min,Li, Quan,Ye, Xiushen,et al. Magnesium carbonate precipitation under the influence of polyacrylamide[J]. POWDER TECHNOLOGY,2010,200(1-2):46-51.
APA	Guo, Min,Li, Quan,Ye, Xiushen,&Wu, Zhijian.(2010).Magnesium carbonate precipitation under the influence of polyacrylamide.POWDER TECHNOLOGY,200(1-2),46-51.
MLA	Guo, Min,et al."Magnesium carbonate precipitation under the influence of polyacrylamide".POWDER TECHNOLOGY 200.1-2(2010):46-51.

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