The complexity of boron species in aqueous solution becomes the bottleneck in development of boron resources from brine. The concentrations of different boron species and transformation mechanism among boron species are mainly affected with the total boron concentration, temperatures, pH of the solution, and cations in the solution. The change trends for concentration of total boron in the complicated aqueous solution can be obtained with the phase equilibrium results, but the accurate concentration of boron species in the solution cannot be obtained. The metastable zone width (MZW) of borates and H 3 BO 3 changed with the concentrations of impurity ions, the stirring rate, cooling rate, and original temperature for the saturated solution. The Pitzer model is the effective method to calculate the concentration of boron species. More thermodynamic data at temperatures below and above 298.15 K are needed for model parameterization. The main problems existed in the systems containing boron species were summarized, and the future development direction is also discussed. The progresses on boron species in the aqueous solution can provide fundamental data in the comprehensive exploitation of the brine boron resource.

中文翻译：

---

水溶液中硼物种的最新研究进展：结构，相平衡，亚稳区宽度（MZW）和热力学模型

水溶液中硼物种的复杂性成为从盐水开发硼资源的瓶颈。硼的总浓度，温度，溶液的pH值和溶液中的阳离子主要影响不同硼物种的浓度和硼物种之间的转化机理。通过相平衡的结果可以得出复杂水溶液中总硼浓度的变化趋势，但无法获得溶液中硼物种的准确浓度。硼酸盐和H 3 BO 3的亚稳区宽度（MZW）随杂质离子的浓度，搅拌速度，冷却速度和饱和溶液的原始温度而变化。Pitzer模型是计算硼物质浓度的有效方法。模型参数化需要低于和高于298.15 K的温度下更多的热力学数据。总结了含硼物种体系中存在的主要问题，并展望了未来的发展方向。水溶液中硼物种的研究进展可为盐水硼资源的综合开发提供基础数据。