China Nonferrous Metallurgy

The solubility of ZnO in the system of ChClurea is high, which makes it possible to realize selective dissolution and effective separation of ZnO, the physical properties of ChClureaZnO system impose large impact on the solubility of ZnO, while the solubility of ZnO has remarkable influence on the separation and extraction process. Within the temperature range of 323~363K, the viscosity, conductivity, density and surface tension of the ChClureaZnO system are measured respectively, and the impact of temperature and ZnO concentration on its physical properties is studied. The result shows that within the temperature range of 323~363K, the viscosity of the ChClureaZnO system is 20~200mPa·s, conductivity 0.2~0.8S/m, density about 1.20g·cm³ and surface tension 50~80mN/m; with the temperature rise, the viscosity of the system becomes lower, the conductivity becomes higher, and the relationship between the conductivity and viscosity meet the Walden law; the density and surface tension gradually get lower with the temperature rise; the viscosity, conductivity, density and surface tension of the ChClureaZnO eutectic solvent increase with the increase of the ZnO concentration in the system.