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材料研究学报  2008, Vol. 22 Issue (6): 585-588    
  研究论文 本期目录 | 过刊浏览 |
球形氢氧化镁的制备及其晶体生长动力学
王伟1; 顾惠敏1; 翟玉春1†; 戴永年2
1.东北大学材料与冶金学院 沈阳 110004
2.昆明理工大学 材料与冶金工程学院 昆明 650093
A kinetics study on growth process of Mg(OH)2 crystal
 WANG Wei1; GU Huimin1; ZHAI Yuchun1†; DAI Yongnian2
1.School of Material and Metallurgy; Northeastern University; Shenyang 110004
2.Faculty of Materials and Metallurgical Engineering; Kunming University of Science and Technology; Kunming 650093
引用本文:

王伟; 顾惠敏; 翟玉春; 戴永年. 球形氢氧化镁的制备及其晶体生长动力学[J]. 材料研究学报, 2008, 22(6): 585-588.
, , , . A kinetics study on growth process of Mg(OH)2 crystal[J]. Chin J Mater Res, 2008, 22(6): 585-588.

全文: PDF(961 KB)  
摘要: 

制备花状球形氢氧化镁粉体, 研究了几种关键因素对镁回收率的影响和氢氧化镁的晶体生长动力学. 结果表明, 随着反应溶液中Mg2+初始浓度和pH值的提高, 镁的回收率提高;提高反应温度使镁的回收率提高, 但当温度超过60℃后,反应溶液中氨的大量挥发使其pH值迅速降低, 因而镁回收率下降; 陈化可以提高镁的回收率, 当陈化时间超过60 min后因镁已完全沉淀, 回收率不再提高.在最佳工艺条件下用氨法制备的氢氧化镁颗粒为花状球形, 形状规则, 分散性好, 粒度均匀,粒径约2 μm, 单片厚度约30 nm. 晶体生长动力学研究表明,析出Mg(OH)2晶体的质量和Mg(OH)2晶粒平均粒径随着时间呈指数增长.

关键词 无机非金属材料 氢氧化镁 氨法 花状球形 晶体生长动力学    
Abstract

Flower-like spherical Mg(OH)2 powder was prepared. The effects of several key factors on recovery rate of Mg and the crystal growth kinetics of Mg(OH)2 were studied. The results show that with the increasing of initial concentration of Mg2+ and pH value, the recovery rate of Mg increases; increase the reaction temperature, the recovery rate increases, but when the temperature is above 60 °C, the pH value of reaction system decreases rapidly due to the volatilization of ammonia, and the recovery rate decreases; ageing process can increase the recovery rate of Mg, when the ageing time is above 60 min, because Mg has been precipitated completely, the recovery rate increases no more. Mg(OH)2 grains prepared by ammonia precipitation method under prime conditions are flower-like spherical, the shape is regular, the dispersivity is good, the granularity is uniform, the grain size is about 2 μm, the thickness of flake is about 30 nm. The mass of Mg(OH)2 precipitated and the average diameters of Mg(OH)2 grains increase exponentially with the reaction time.

Key wordsinorganic non-metallic materials    Mg(OH)2, ammonia precipitation method    flower-like spherical    crystal growth kinetics
收稿日期: 2008-09-01     
ZTFLH: 

TB321

 
基金资助:

国家重点基础研究发展计划(2007CB613603)

1 WU Jiansong, KUANG Wenhua, LIANG Haiqun, Research and manufacture progress of flame-retard magnesium hydroxide, Journal of Salt and Chemical Industry, 37(2), 35(2008)
(吴健松, 匡文华, 梁海群, 阻燃型氢氧化镁研制进展, 盐业与化工, 37(2), 35(2008))
2 Xu Hui, Deng Xinrong, Preparation and properties of superfine Mg(OH)2 flame retardant, Transactions of Nonferrous Metals Society of China, 16, 488(2006)
3 Hua Gui, Xiaohong Zhang, Weifu Dong, Qingguo Wang, Jianming Gao, Zhihai Song, Jinmei Lai, Yiqun Liu, Fan Huang, Jinliang Qiao, Flame retardant synergism of rubber and Mg(OH)2 in EVA composites, Polymer Communication, 48, 2537(2007)
4 U.Hippi, J.Mattila, M.Korhonen, J.Sepp¨al¨a, Compatibilization of polyethylene/aluminum hydroxide (PE/ATH) and polyethylene/magnesium hydroxide (PE/MH) composites with functionalized polyethylenes, Polymer, 44, 1193(2003)
5 CHEN Yukun, XU Chuanhui, JIA Demin, CHEN Kefu, Progress in research of Mg(OH)2 flame retardant polymer, China Synthetic Resin and Plastics, 24, 64(2007)
(陈玉坤, 徐传辉, 贾德民, 陈克复, Mg(OH)2 阻燃聚合物的研究进展, 合成树脂及塑料, 24, 64(2007))
6 Longzhen Qiu, Rongcai Xie, Peng Ding, Baojun Qu, Preparation and characterization of Mg(OH)2 nanoparticles and flame-retardant property of its nanocomposites with EVA, Composite Structures, 62, 391(2003)
7 ZHAO Hua, LIU Runjing, HU Yongqi, LIU Hongjie, ZHAO Fengyun, HU Qingfu, The import and export of magnesium salt and itzs price analysis, Inorganic Chemicals Industry, 38(8), 11(2006)
(赵华, 刘润静, 胡永琪, 刘洪杰, 赵凤云, 胡庆福, 镁盐进出口情况及其价格分析, 无机盐工业, 38(8), 11(2006))
8 ZHENG Shuilin, DU Gaoxiang, LI Yang, GAO Feng, GAO Bing, Study on use of brucite for preparation of superfine magnesium hydroxide, Mining & Metallurgy, 2, 43(2004)
(郑水林, 杜高翔, 李杨, 高峰, 高斌, 用水镁石制备超细氢氧化镁的研究, 矿冶, 2, 43(2004))
9 Q.L. Wu, L.Xiang, Y.Jin, Influence of CaCl2 on the hydrothermal modification of Mg(OH)2, Powder Technology, 165, 100(2006)
10 Du Gaoxiang, Wang Baikun, Preparation of plate-shape nano-Mg(OH)2 powder from magnesite tailing, Earth Science Frontiers, 15(4), 142(2008)
11 Henrist C., Mathieu J. P., Vogels C., Rulmont A., Cloots R.. Morphological study of magnesium hydroxide nanoparticles precipitated in dilute aqueous solution, J. Crystal Growth. 249, 321(2003)
12 Jyh-ping Hsu, Anca Nacu. Preparation of submicron-sized Mg(OH)2 particles through precipitation, Colloids and Surfaces A: Physicochem. Eng. Aspects, 262, 220(2005)
13 ZHANG Kecong, ZHANG Lehui, Crystal Growth, (Beijing: Science Press, 1981) p.51 
(张克从, 张乐潓, 晶体生长, (北京: 科学出版社, 1981) p.51)

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