硼酸锂盐卤水体系热力学研究进展

Research Progress on Thermodynamic of Lithium Borate Salt Brine System

硼酸锂盐卤水体系热力学性质的研究是卤水中硼酸锂盐提取的重要理论依据。从硼酸锂盐的结构、硼酸锂盐卤水体系相平衡、热力学性质和热力学模型研究四个方面,归纳总结了硼酸锂盐卤水体系研究进展。溶液中硼酸锂盐的存在形式与溶液中总硼浓度、pH值、温度有关。通过硼酸锂盐卤水体系热力学模型可计算硼酸锂盐的溶解度及溶液的热力学性质,而卤水体系热力学性质的研究可为模型的构建提供基础数据。在已有的研究基础上,总结了硼酸锂盐卤水体系研究中存在的问题,并指出了其后续研究方向。

The thermodynamic properties of lithium borate salt brine system are important theoretical basis for the extraction of lithium borate in brine.The structure of lithium borate salt,phase equilibrium of lithium borate brine system,thermodynamic properties and thermodynamic model research are introduced.The recent research progress of lithium borate brine system are summarized.The concentrations of various boron species are affected with total boron concentration,pH value and temperature of aqueous solution.The solubility and thermodynamic properties of lithium borate can be calculated by thermodynamic model of lithium borate brine system.The thermodynamic properties in the systems provide essential data for thermodynamic model.Based on existed report,the problem in the research of brine system and the direction are summarized,the following research of brine system are pointed out.