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          The world's first 1000-ton high-purity lithium chloride production line built in Qinghai


          Chinanews.com, Xining, February 26 (Reporter Luo Yunpeng)-on the 26th, the reporter learned from the Qinghai Salt Lake Research Institute of the Chinese Academy of Sciences that the world's first thousand-ton high-purity lithium chloride production line (hereinafter referred to as the project) in Xitaijinaer Salt Lake, Chaidamu Basin, Qinghai Province, produced 99.5% lithium chloride quality index, marking the completion of the production line.

          The proven lithium chloride reserves in Qinghai exceed 22 million tons, accounting for 83.4% of China's salt lake lithium resources and 1/3 of the world's brine lithium resources reserves. Lithium chloride is mainly used in the field of air conditioning and the production of dry batteries and metal lithium. Lithium chloride is the main material for the preparation of battery-grade lithium carbonate.

          Duan Dongping, deputy director of the Qinghai Salt Lake Research Institute of the Chinese Academy of Sciences, said that the project is a sub-project of the key deployment project of the Chinese Academy of Sciences, "extraction of strategic elements from salt lake brine." it is jointly undertaken by the Qinghai Salt Lake Institute of the Chinese Academy of Sciences and the Shanghai Institute of Organic Chemistry, and has independent intellectual property rights. It is understood that the project was put into production and commissioning on December 24, 2015, and the entire production line was completed on January 21, 2016.

          "in the process of promoting the implementation of the 1000-ton high-purity lithium chloride project, many units have jointly developed China's first centrifugal extraction device for extracting lithium from salt lakes." Duan Dongping said that in the next three months, the project will gradually improve process parameters and technical indicators, and the ultimate goal is to achieve 4N level (4N refers to 99.99% purity) production line.

          Duan Dongping said that the construction of the project will play an exemplary role in the extraction and recycling of strategic elements such as lithium and boron in China's salt lakes, as well as the saving and efficient comprehensive utilization of salt lake mineral resources.

          It is also understood that in the past five years, Qinghai Salt Lake has made a major breakthrough in lithium extraction technology, and the industry has tried to use brine lithium production processes such as adsorption, calcination and carbonization, which has laid the foundation for the large-scale development of Qinghai lithium industry. In addition to the salt lake brine extraction technology and demonstration project of 1000-ton lithium chloride, Qinghai Salt Lake Industry Co., Ltd. has built an industrial demonstration production line with an annual output of 10,000 tons of lithium carbonate; after Qinghai lithium industry extracted boron from brine, the ion-selective magnesium-lithium separation process was adopted to directly produce battery-grade lithium carbonate, and a 10,000-ton lithium carbonate production plant was built.

          According to statistics from the China Association of Automobile Manufacturers, China produced 340471 new energy vehicles and sold 331092 new energy vehicles in 2015, of which new energy vehicle sales surpassed the United States for the first time to become the world's largest new energy vehicle market.

          Zhou Xing, deputy director of the Qinghai Provincial Department of Science and Technology, said earlier that technological innovation in the lithium industry is the focus of the "13th five-year Plan". In view of the different composition of valuable elements in various salt lakes in Qinghai, we will strive to adopt a unified standard to open up the complete industrial chain from lithium carbonate to new energy vehicles, and do a good job in lithium chloride, metal lithium, lithium hydroxide and other industrial chains. (end).

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