盐卤硼酸盐化学XXX-MgO·2B_2O_3-18%MgCl_2-H_2O过饱和溶液结晶动力学  

Chemistry of Borate in Salt Lake Brine X X IX ──Crystallization Kinetics of Mg-borates from MgO. 2B2O3-18%MgCI2-H2O Supersaturated Solution

作　　者：朱黎霞[1] 高世扬[1] 夏树屏[1] 张逢星[2] 

机构地区：[1]中国科学院青海盐湖研究所西安二部,西安710043 [2]西北大学化学系

出　　处：《无机化学学报》2000年第5期722-728,共7页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目!(No.29971032)

摘　　要：对ＭｇＯ·２Ｂ_２Ｏ_３－１８％ＭｇＣｌ_２－Ｈ_２Ｏ过饱和溶液在不同温度条件下的结晶动力学过程进行测定，给出结晶动力学方程。析出固相采用Ｘ－射线粉末衍射、红外光谱和热分析进行物相鉴定。提出使用结晶法合成章氏硼镁石的新方法。The crystallization processes of Mg-borates from MgO. 2 B2O3 - 18 % MgCl2 - H2O supersaturated solution at different temperature have been studied by kinetic method and the crystallization kinetic equations were fitted with the experimental data by computer. The solid phases were identified by IR-spectra, X-ray powder diffraction and TC-DTG-DSC thermal analysis. The new synthetic method of hungchaoite has been firstly proposed.

关 键 词：章氏硼镁石 硼酸镁盐 结晶动力学 过饱和溶液 

分 类 号：O614.22[理学—无机化学] O643.12[理学—化学]