Dongou Microfiltration leads industry breakthrough with internationally advanced filtration technology
Lishui, China – March 27, 2026 – The technical appraisal for the “Organic Tubular Microporous Membrane and Complete Set of Equipment for Hydrometallurgical Separation” was successfully held in Lishui, Zhejiang Province. The project was jointly completed by Zhejiang Dongou Microfiltration, Zhejiang University, and Zhejiang University Shaoxing Research Institute.
The Challenge
Hydrometallurgical separation faces two persistent challenges: filtration efficiency and filtration precision. The project team has developed a solution featuring:
● High filtration precision & efficiency
● Long service life
● Low operating costs
These innovations serve critical industries including new energy, pharmaceuticals, non-ferrous metals, food, chemicals, and environmental protection.
Expert Verdict: Internationally Advanced
The expert panel was chaired by Academician Gao Congjie of the Chinese Academy of Engineering, with members from Tsinghua University, Zhejiang Gongshang University, and other leading institutions.
After rigorous review, the panel reached a unanimous conclusion:
The project has achieved internationally advanced levels in polymer tubular microporous membrane materials, processes, equipment, and applications.
Why It Matters
This breakthrough enables self-sufficiency in high-end separation materials, strengthens China’s leadership in green metallurgy equipment, and accelerates the transition toward intelligent, low-carbon industrial operations.
Government officials including Mr. Weng Weirong, Director of Lishui Science and Technology Bureau, attended the meeting.
About Dongou Microfiltration
Founded in 1986, Dongou Microfiltration is a national “Specialized, Refined, Distinctive & Innovative” Key Little Giant Enterprise. The company specializes in microporous precision filter media and filtration systems, providing customized solutions for energy saving, emission reduction, and green production.
Key Industries Served: New Energy, Pharmaceuticals, Non-ferrous Metals, Food, Chemicals, Environmental Protection
Market Position: 95% market share in its core niche, serving customers across China, Korea, Europe, and the Americas.
Key Partners: GEM, CATL, BYD, and other leading new energy enterprises.
Company Snapshot:
● 300+ employees | RMB 300M+ annual output
● 55 authorized patents (3 international, 27 domestic inventions)
● 70+ published papers
Embracing the Future
Dongou MF has been deeply engaged in the filtration field for 40 years, continuously increasing R&D investment, and leading the development of the polymer precision filtration industry with core technologies. For inquiries, please contact our team.