| With the rapid development of science and technology in recent years, rubidium and cesium are not limited to traditional fields such as catalyst, special glass and medicine because of their excellent physical and chemical properties, but have a place in high-tech fields such as magnetohydrodynamic power generation, ion thruster propellant and new energy sources such as perovskite solar cells. Rubidium and cesium resources in China mainly exist in ores and brine of salt lakes, the process of extracting rubidium and cesium from ores is relatively mature, mainly sulfuric acid leaching method and roasting-water leaching method, there are still problems such as complex process flow and large energy consumption, and a large amount of tail gas emission will have a certain impact on the environment, which is not in line with the concept of green industry, and has a great impact on the realization of China""s It is not in line with the green industry concept and has a great impact on the realization of China""s "double carbon" target. The extraction of rubidium cesium from salt lake brine generally adopts technologies such as solvent extraction and ion exchange method, which have the advantages of simple process, strong continuity, low energy consumption and low emission, and have broader development prospects. This paper reviews the current status of rubidium cesium resources, the current extraction difficulties and the progress of technical research at the present stage, discusses in depth the advantages and disadvantages of sulfuric acid leaching, roasting-water leaching, extraction and ion exchange methods and other technologies, and looks forward to the future development direction of rubidium cesium extraction technology. |
