Orda Szymon, Drzazga Michał, Leszczyńska-Sejda Katarzyna, Ciszewski Mateusz, Kopyto Dorota, Kocur Alicja, Lemanowicz Marcin
ŁUKASIEWICZ-Institute of Non-Ferrous Metals, Sowińskiego 5, 44-100, Gliwice, Poland.
Department of Chemical Engineering and Process Design, Faculty of Chemistry, Silesian University of Technology, Ul. Ks. M. Strzody 7, 44-100, Gliwice, Poland.
Sci Rep. 2025 Jan 28;15(1):3531. doi: 10.1038/s41598-024-83746-0.
Mutual solubility measurements were carried out for three multi-component systems of ammonium perrhenate (NHReO) and one of the ammonium salts (NHNO, NHCl or (NH)SO) dissolved in water. Experiments were carried out using the isothermal solution saturation method at 293.15K. The concentrations of the reagents in saturated solutions in each system were determined by analytical methods. On the basis of the results, the solubility isotherms were determined. The phase diagrams were prepared for each investigated system. The eutonic point and the solubility isotherms of both tested salts are marked on each phase diagram. The data provided were implemented to predict the composition of the solid phase in the purification process of crude ammonium perrhenate (CAP) by recrystallisation from solutions of ammonia salts. Moreover, the efficiency of salting-out for tested systems may be determined.
对高铼酸铵（NHReO）与一种铵盐（NHNO、NHCl或(NH)SO）溶解于水形成的三个多组分体系进行了互溶性测量。实验在293.15K下采用等温溶液饱和法进行。通过分析方法测定了每个体系中饱和溶液中试剂的浓度。根据结果确定了溶解度等温线。为每个研究体系绘制了相图。每个相图上都标注了两种测试盐的低共熔点和溶解度等温线。所提供的数据用于预测粗高铼酸铵（CAP）从铵盐溶液中重结晶纯化过程中固相的组成。此外，还可以确定测试体系的盐析效率。
