摘要
配制MgO·1.5B2 O3- 18%MgCl2 -H2 O过饱和溶液在 0°C恒温静止 ,对该过饱和溶液结晶析出多水硼镁石 (2MgO·3B2 O3·15H2 O)的动力学过程进行了研究。结晶诱导期较长 ,晶体生长缓慢 ,结晶达平衡需要较长时间。探讨了析出固相的结晶反应机理和硼在溶液中的存在形式 。
WT5BZ]The supersaturated solution of MgO·1.5B 2O 3-18%MgCl 2-H 2O was prepared and kept in thermostat of 0±0.1°C. The crystallization processes of Mg-borate from the solution have been studied by the kinetic method. Inderite (2MgO·3B 2O 3·15H 2O) crystallized out from the solution. The solid phase was identified by chemical analysis, FT-IR spectra, X-ray powder diffration and thermal analysis. The experimental data were fitted and the crystallization kinetic equation was given, meanwhile the reaction mechanism of crystallization was proposed and discussed.
出处
《盐湖研究》
CSCD
2000年第2期11-15,共5页
Journal of Salt Lake Research
基金
国家自然科学基金!(2 96 710 32 )
关键词
硼酸盐
结晶动力学
过饱和溶液
盐湖
Borate, Crystallization kinetic, Supersaturated solution
