论文部分内容阅读
本文用等温蒸发的方法,研究了 Li~+,Mg~(2+)∥Cl~-,SO_4~(3-)-H_2O 体系(25℃)介稳相平衡,绘制了介稳相图,测定了密度、粘度、折光率、电导率和某些液相点的蒸汽压.该介稳相图由六个结晶区构成,即 LiCl·H_2O、LiCl·MgCl_2·7H_2O、MgCl_2·6H_2O、Li_2SO_4·H_2O、MgSO_4·7H_2O 和 MgSO_4·6H_2O相区.该体系的25℃介稳相图和稳定相图的差异是,新结晶区 MgSO_4·6H_2O 的出现,使 Li_2SO_4·H_2O 相区扩大,其它相区缩小.根据 Pitzer 电解质溶液理论,用单纯形法在 M68000计算机上进行了体系溶解度关系的计算,并获得了计算的溶解度数据,绘制了计算的相图.
In this paper, the metastable phase equilibrium of Li ~ +, Mg ~ (Ⅱ) ∥Cl ~ - and SO_4 ~ (3 -) - H_2O systems at 25 ℃ was studied by isothermal evaporation method. Density, Viscosity, Refractive Index, Conductivity and Vapor Pressure at Some Liquid Point The metastable phase diagram consists of six crystalline regions, namely LiCl · H 2 O, LiCl · MgCl 2 · 7H 2 O, MgCl 2 · 6H 2 O, Li 2 SO 4 · H 2 O , MgSO 4 · 7H 2 O and MgSO 4 · 6H 2 O phase.The difference between the stationary phase diagram and the stationary phase diagram at 25 ℃ for this system is that the appearance of MgSO 4 · 6H 2 O in the new crystallization zone enlarges the Li 2 SO 4 · H 2 O phase region and reduces the other phase regions. According to the theory of Pitzer electrolyte solution, the solubility relationship of the system was calculated by simplex method on the M68000 computer, and the calculated solubility data were obtained, and the calculated phase diagram was drawn.