1. College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
2. Institute for Interdisciplinary and Innovation Research, Xi’an University of Architecture and Technology, Xi’an 710055, China
et al.
Lepidolite emerges as a critical reservoir of lithium resources in China,providing a pathway to efficient lithium extraction and the concurrent recovery of strategic resources such as rubidium and cesium, thereby unlocking substantial economic value. Firstly, the basic properties, structure and occurrence of lepidolite in China were introduced. Subsequently, the activation methods for lithium extraction were meticulously outlined, including acid, alkali and salt methodologies, and an exhaustive comparative analysis was conducted to reveal variations in energy consumption, cost-effectiveness, and environmental impact. Notably, certain techniques exhibit lower energy requirements and costs but entail a heightened risk of environmental pollution. Moving forward,the study delved into the intricacies of separating rubidium and cesium from the lithium precipitation mother liquor, exploring stepwise crystallization,precipitation, solvent extraction, and ion exchange methods, and compared the advantages and disadvantages of each method. It was also found that some methods are efficient but not suitable for large-scale production. In response to these findings, the study proposes a holistic paradigm, acknowledging the inherent limitations of single process. It underscores the imperative of comprehensive consideration throughout the entire process flow, proposing the selection of the most suitable integrated process method based on diverse production requirements. This strategic approach is meaningful in fully harnessing the future potential of lepidolite resources while facilitating the comprehensive and sustainable utilization of associated resources. By embracing a nuanced and integrated perspective, this study aims to contribute to the optimization of lithium resource exploitation and associated resource utilization on a broader scale.