Effects of Temperature on the Preparation of Magnesium Carbonate Hydrates by Reaction of MgCI2 with Na2CO3

查看全文 作　　者：[1]程文婷;[1]李志宝;George P. [2]Demopoulos

机构地区：[1]Key Laboratory of Green Process and Engineering, Institute of Process Engineering, National Engineering Labo-ratory for Hydrometallurgical Cleaner Production Technology, Chinese Academy of Sciences, Beijing 100190,China;[2]Department of Mining,Materials Engineering, McGill University, 3610 University street, Montreal, Quebec,Canada

出　　处：《Chinese Journal of Chemical Engineering》索引2009年第17卷第4期,共6页

基　　金：Supported by the National Natural Science Foundation of China (20876161) and the National Basic Research Program of China (2007CB613501, 2009CB219904). 摘　　要：Homogeneous(unseeded)precipitation of magnesium carbonate hydrates by the reaction of MgCl2 with Na2CO3 in supersaturated solutions between 273 and 363K was investigated.The compositions,morphologies and filtration characteristics of the precipitates were studied in detail.The magnesium carbonate hydrates obtained at 313K and in the range of 343-363K showed good morphologies and filtration characteristics.Magnesium oxides(MgO)with high purity(97.6%-99.4%)were obtained by calcining magnesium carbonate hydrates at 1073K. 关键词：均相反应碳酸镁水合物碳酸钠氯化镁沉淀碳酸钙制备温度

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Effects of Temperature on the Preparation of Magnesium Carbonate Hydrates by Reaction of MgCI2 with Na2CO3

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