About us
Hangzhou Lanran Tech stands as a global leader in the manufacturing of ion exchange membranes, with an impressive annual output of 1,850,000m2.
We specialize in delivering tailored membrane solutions and advanced equipment to meet the specific needs of our clients, combining flexibility and efficiency with exceptional service.
Ventures
12
plants
4
sales offices
3
employees
380
R&D
5 R&D centers
176 highly skilled technical professionals
44 invention patents
68 utility model patents
Lanran’s dedicated R&D team works closely with customers to develop solutions that precisely align with their application requirements. From laboratory-scale trials to pilot projects and full-scale industrial production, we offer comprehensive expertise across all stages of equipment development, including integrated modular systems.
Industry solutions
Suatainability
Sustainability drives our innovation. We develop solutions that help industries thrive while reducing their environmental footprint. From advancing the circular economy to combating climate change, our technologies focus on preserving natural resources, reducing pollution, and promoting responsible water management. Our vision is a future where industrial growth aligns with environmental stewardship, fostering sustainable progress for generations to come.
Team Building
“Industrial cleanliness, Resource Hanmony”
At Lanran, we believe strong teams create innovative solutions. Our team-building activities foster collaboration, creativity, and trust, ensuring a vibrant workplace culture that drives excellence. We cultivate the synergy to redefine separation and refine solutions, delivering cutting-edge technologies to our valued clients.
News
Electrodialysis Expansion Project Advances Lithium Recovery at Chalco Henan Branch
Lanran is advancing an electrodialysis expansion project for lithium recovery at Chalco Henan Branch, supporting more efficient lithium resource recovery from alumina production. Industrial Electrodialysis for Lithium Recovery The project is an industrial demonstration project focused on recovering lithium associated with bauxite processing. Lithium contained in alumina by-products is dissolved with nitric acid and then concentrated through Lanran’s electrodialysis system to produce lithium nitrate solution for the downstream evaporation process. A reverse osmosis system is integrated with the electrodialysis process to further recover lithium from the dilute stream, enabling an overall lithium recovery rate of more than 99% while supporting a more resource-efficient, closed-loop production process. Lanran’s original electrodialysis system entered commercial operation in 2024. Following its stable operation and proven economic performance, the customer decided to expand the project in July 2026. The expansion increases the plant’s lithium recovery capacity by approximately 20%, adding eight electrodialysis units with a treatment capacity of 10 m³/h to the existing 30-unit system, which processes 60 m³/h. Fast Project Execution To meet the customer’s project schedule, Lanran completed equipment manufacturing within just 15 days after receiving the expansion request in late June. The equipment was shipped on July 11. Before shipment, Lanran engineers had already arrived at the project site to coordinate installation conditions, verify equipment interfaces, and prepare for delivery. Manufacturing and site preparation progressed simultaneously, helping keep the project on schedule. On-Site Engineering Support Despite the summer heat, Lanran’s engineering team continues to provide on-site installation guidance and technical support while working closely with the customer throughout project implementation. The team is making every effort to complete installation and commissioning as scheduled, enabling the expanded lithium recovery system to begin operation as soon as possible. Supporting Sustainable Lithium Resource Recovery The project demonstrates how industrial electrodialysis can improve lithium resource utilization by concentrating lithium nitrate for downstream processing while working together with reverse osmosis to maximize lithium recovery. From rapid manufacturing to on-site engineering support, Lanran remains committed to delivering reliable electrodialysis solutions that help customers accelerate project implementation, improve resource efficiency, and support more sustainable industrial production.
Another L𝐚𝐫𝐠𝐞-𝐬𝐜𝐚𝐥𝐞 Bipolar Membrane Electrodialysis (BPED) Project Of LANRAN Successfully Commissioned
Lanran’s latest NF + BPED system has entered stable operation at a nano-scale electronic ceramic materials manufacturing facility in Chizhou, Anhui, China, supporting resource recovery from industrial wastewater and water reuse. The system delivers:✔️ Continuous production of approximately 2N hydrochloric acid (HCl) and 2N sodium hydroxide (NaOH)✔️ Reuse of the recovered acid and alkali in upstream washing processes✔️ Recycling of production wastewater back into the manufacturing process The first phase currently operates three BPED units, producing approximately 4.5 m³/h each of hydrochloric acid and sodium hydroxide. This project demonstrates how Nanofiltration (NF) and Bipolar Membrane Electrodialysis (BPED) can recover valuable chemicals from industrial wastewater while supporting water reuse in advanced materials manufacturing. Lanran continues to provide practical membrane separation solutions that help industrial manufacturers improve resource utilization and support more sustainable production.
Salt Lake Lithium Extraction: Lanran Expands a 20,000 t/y Lithium Hydroxide Project with an Additional Electrodialysis System
As global demand for battery-grade lithium hydroxide continues to rise, improving the efficiency of salt lake lithium extraction has become a key focus for the lithium industry. Advanced electrodialysis (ED) technology enables lithium producers to concentrate lithium-rich brine more efficiently while supporting stable, large-scale production. Lanran has completed the commissioning of an additional homogeneous membrane electrodialysis system for a 20,000 t/year lithium hydroxide project at the Lago Co Salt Lake in Xizang, China. The newly installed ED unit expands the plant’s lithium brine concentration capacity and is now operating steadily as part of the overall production process. Project Highlights Why Electrodialysis Is Important for Salt Lake Lithium Extraction In modern salt lake lithium extraction plants, electrodialysis plays an important role in upgrading lithium-rich brine before downstream purification and lithium conversion. Compared with conventional concentration methods, electrodialysis offers several advantages: These benefits help improve production efficiency while supporting more sustainable lithium manufacturing. Proven Membrane Technology for Industrial Lithium Production As global investment in lithium resources continues to grow, efficient membrane separation technology is becoming increasingly important for salt lake lithium extraction, lithium refining, and battery materials production. With proven electrodialysis, bipolar membrane electrodialysis, and industrial membrane technologies, Lanran has accumulated extensive experience in the delivery of large-scale lithium projects, providing reliable and mature solutions for lithium brine concentration, resource recovery, and high-purity lithium chemical production. Looking for a more efficient salt lake lithium extraction solution? Contact Lanran to learn how our membrane technologies can help optimize your lithium production process.