|
|||||
|
|
Solid-liquid phase equilibria in the system water + methanol + MgSO4·7H2O + MnSO4·4H2O |
|
| Authors: | P Safaeefar HM Ang K Maeda H Kuramochi Y Asakuma MO Tade K Fukui |
| Institution: | 1. Department of Chemical Engineering, Curtin University of Technology Australia, GPO BOX U 1987, Perth, WA 6845, Australia;2. AJ Parker CRC for Hydrometallurgy, Australian Minerals Research Centre, PO Box 7145, Karawara, WA 6152, Australia;3. Department of Mechanical System Engineering, The University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan;4. Research Centre for Material Cycles and Waste Management, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan |
| Abstract: | The solubilities and complex phase equilibria for the system of MnSO4·4H2O + MgSO4·7H2O + H2O + CH3OH were determined at the temperatures 291.2 and 301.2 K over the methanol mole fraction range of 0.00–0.12.The solubility data were used for modelling with the modified extended electrolyte non-random two-liquid equation. The salting-out effect of MgSO4 and methanol on the solubilities of two manganese salts (MnSO4·H2O and MnSO4·4H2O) are represented in the several thermodynamic figures as a function of temperature. The solventing-out effect was stronger than the salting-out effect, which results in a decrease of the solubilities of manganese, salts even though the solubility of MnSO4·H2O decreased and solubility of MgSO4·4H2O increased as temperature increased. |
| Keywords: | Solubility of electrolytes Manganese sulphate monohydrate Manganese sulphate tetrahydrate Multi-electrolytes Mixed solvent NRTL equations |
| 本文献已被 ScienceDirect 等数据库收录！ | |