Research on the process of sulfuric acid leaching and extraction of lithium from lithium-rich electrolytes
This paper uses the aluminum electrolyte from an aluminum smelter in Ningxia Autonomous Region as raw material to explore the optimal conditions for acid leaching,namely the liquid-solid mass ratio of 2∶1(g),reaction temperature of 90℃,reaction time of 150 minutes and the sulfuric acid concentration of 90％.The lithium extraction rate is 56.11％.The comparative analysis is conducted on XRD patterns of acid leaching residues and aluminum electrolyte raw materials under optimal conditions to reveal the principle of acid leaching.By fitting the data,the relationship between the acid leaching dissolution rate of aluminum electrolyte and the lithium dissolution rate is obtained.
万方数据
维普
