Details

Autor(en) / Beteiligte

• Nie, Guo-Liang
• Sang, Shi-Hua
• Cui, Rui-Zhi

Titel

Measurements of the Solid–Liquid Phase Equilibria in Quinary System NaBr–KBr–MgBr2–SrBr2–H2O at 323 K

Ist Teil von

• Journal of chemical and engineering data, 2019-08, Vol.64 (8), p.3436-3443

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In view of the characteristic of the deep underground brine that is rich in sodium, potassium, magnesium, calcium, strontium, chlorine, and bromide in the Sichuan basin, solid–liquid equilibria in quinary system NaBr–KBr–MgBr2–SrBr2–H2O were accurately determined at 323 K by the method of isothermal dissolution equilibrium. According to the experimental data, the three-dimensional equilibrium phase diagram was obtained. It consists of ten univariant curves, three invariant points, and six crystallization regions. The solids in crystallization regions correspond to NaBr·2H2O, NaBr, SrBr2·6H2O, MgBr2·6H2O, KBr, and KBr·MgBr2·6H2O, of which MgBr2·6H2O has the minimum crystallization region and KBr has the largest crystallization region, which is bigger than half of the phase diagram. In addition, two-dimensional projections of the saturation surfaces of KBr, SrBr2·6H2O, and MgBr2·6H2O were also analyzed.