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针对我国盐湖硼资源的特点 ,模拟合成MgO·4B2 O3 18%MgSO4 H2 O过饱和溶液 ,在 2 0℃恒温静置 ,跟踪结晶动力学过程。析出固相采用X ray粉末衍射、红外光谱和热分析进行物相鉴定。拟合并给出结晶动力学方程 ,同时对结晶机制进行了探讨
Aiming at the characteristics of boron resources in salt lake of our country, a supersaturated solution of MgO · 4B2 O3 18% MgSO4 H 2 O was synthesized and kept at a constant temperature of 20 ℃ to observe the crystallization kinetics. Precipitation of solid phase X ray powder diffraction, infrared spectroscopy and thermal analysis of the phase identification. The kinetic equations of crystallization are given and the mechanism of crystallization is discussed