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Traditional lithium extraction process: The original brine undergoes steps such as salt field gradient evaporation and flotation to precipitate sodium chloride, sodium sulfate, and potassium chloride, becoming old brine. In this process, lithium ion loss reaches 70%, lithium yield is about 30%, resource utilization rate is low, investment is large, and construction period is long.
Adsorption+membrane lithium extraction process: using the lithium extraction adsorbent developed by Jiuwu High Tech and the rotating moving bed adsorption process, the raw brine enters the lithium extraction adsorption device, completing the separation and preliminary concentration of lithium ions and other cations in one step. The adsorption section produces two streams of brine, one stream of adsorbed tail brine seeps back into the salt field and dissolves salt again to produce brine, and the other stream of qualified lithium containing solution undergoes membrane purification and concentration to obtain lithium rich brine; Lithium rich brine can be electrolyzed through bipolar membranes to obtain a lithium hydroxide solution, which can then be recrystallized to obtain battery grade lithium hydroxide products; Lithium rich brine can also be crystallized and separated to obtain lithium chloride products through multi effect evaporation; Similarly, lithium rich brine can react with sodium carbonate to produce lithium carbonate products through lithium precipitation. The adsorption+membrane lithium extraction process can achieve diversification of salt lake products, with better investment and construction cycles than traditional lithium extraction processes for constructing salt fields.

In 1997, Mr. Shi Jun, a generation master of China's chemical higher education, a senior academician of the Chinese Academy of Sciences, and a professor of Nanjing University of Technology, and Mr. Xu Nanping, an academician of the CAE Member, led the team to serve the country, undertake the national "Ninth Five Year Plan", and research and develop China's own ceramic membrane products, which gave birth to Jiuwu High Tech.
Since its establishment, Jiuwu High Tech has adhered to the patriotic spirit of serving the country through science and technology and the spirit of striving for technological innovation, inheriting and carrying forward Mr. Shi Jun's professional ethics. It is precisely because Academician Xu Nanping has led the team to gather strength and continuously carry out original and leading technological breakthroughs that Jiuwu High Tech has made significant breakthroughs in breaking foreign technological blockades and achieving brilliant achievements in product sales worldwide. If a country does not make technological progress, it will not have a bright future; If we cannot firmly grasp the core technology in our own hands, we cannot achieve independence and autonomy. In the journey of realizing the Chinese Dream, Jiuwu people are willing to contribute and use their own efforts to lay the foundation, pillars, and beams for the realization of national rejuvenation and national strength. Since its establishment for more than 20 years, Jiuwu High tech has pioneered the application of membrane technology in multiple fields, becoming a leading enterprise in the ceramic membrane field of China's membrane industry. Born and raised in innovation, Jiuwu High Tech will undoubtedly create a new situation for high-quality development of the enterprise in the future.

JIANGSU JIUWU HI-TECH CO.,LTD (referred to as "JIUWU HI-TECH") was founded in 1997. In 2017, JIUWU HI-TECH has listed on Shenzhen stock exchange (stock code: 300631). Now it becomes the largest ceramic membrane manufacturer in the world.

JIUWU HI-TECH has many unique applications in the world, more than 50 patents about ceramic membrane, system and process application. JIUWU HI-TECH's products could be used in many applications, such as Food &Beverage, Bio-pharm, Environmental and Chemical industry, etc.

JIUWU HI-TECH is system integration provider. JIUWU HI-TECH has advance R&D center, more than one hundreds of pilot. There are many material scientists, experienced engineers and workers. JIUWU HI-TECH can offer total solution and service for trial, design, manufacturing, installation, commissioning, after-sale service and membrane replacement. JIUWU HI-TECH cooperates with OEM.

JIUWU HI-TECH is keeping efforts with gratefulness to society under the support of JIUWU HI-TECH's staffs. It is growing up to own a leading position in the membrane separation industry worldwide.

The company's main products are membrane integration technology solutions with ceramic membranes, organic membranes, lithium adsorbents and other separation materials as the core. Mainly applied in new energy services, industrial fluid separation, water treatment and resource utilization, industrial waste gypsum resource utilization and other fields.