关键词: 锂资源, 盐湖卤水, 深层地下卤水, 开采技术, 供需现状

Abstract:

With the rapid development of strategic emerging industries such as new energy and new materials,the demand for mineral resources in emerging industries such as unconventional energy,rare earth elements and lithium has become increas-ingly prominent.Lithium is one of the scarce emerging mineral resources in the “National Mineral Resources Planning 2016-2020”.In addition,the international attention to the new energy vehicle industry in recent years has led to an increase in the demand for lithium resources year by year.Although China has a certain advantage in the amount of lithium resources,the in-dustrial development layout is not reasonable,resource development can not keep up with the requirements of industrial de-velopment,and most of the basic lithium salt depends on the import of raw materials,so the development and utilization ca-pacity of lithium resources in China needs to be strengthened.The overall occurrence of three types of lithium resources in China was summarized, including salt lake brine type,hard rock type and deep underground brine type,and the research status and related mining technology of each type of lithium resources were analyzed.At the same time, combining the present situation of supply and demand of lithium resources in China,the production of various types of lithium resources supply situation was analyzed.It was pointed out that the current production of Chinese salt lake brine type lithium resources was short in China, hard rock type lithium supply was high external dependency,and deep underground brine was expected to become the future lithium resources powerful supplement.It was suggested to strengthen the investigation of deep underground brine type lithium resources evaluation and the study of comprehensive utilization of resources.

Key words: lithium resources, salt lake brine, deep underground brine, mining technology, supply and demand status