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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
ISSN0032-5910
卷号200期号:1-2页码:46-51
文章类型Article
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.
关键词Magnesium Carbonate Polyacrylamide Precipitation Morphology
WOS标题词Science & Technology ; Technology
关键词[WOS]CALCIUM-CARBONATE ; SINGLE-CRYSTAL ; CRYSTALLIZATION ; EVOLUTION ; GROWTH ; MGO ; NESQUEHONITE ; TEMPERATURE ; FABRICATION ; PRECURSORS
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS记录号WOS:000277224700007
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
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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