These special membranes are high-performance separation materials designed for demanding and complex operating conditions. They offer excellent chemical and thermal stability, enabling long-term operation in harsh environments such as strong acids, strong alkalis, and organic solvents.
Suitable for high-temperature, high-pressure, and highly corrosive systems, these membranes are engineered with optimized materials and structures to significantly improve the recovery of organic and inorganic substances, reduce operating costs, and deliver both economic and environmental benefits across multiple industries.
The membranes operate based on pressure-driven separation technology, using corrosion-resistant polymer or composite materials. Separation is achieved through selective screening based on molecular size and solubility characteristics, enabling purification, concentration, and component recovery.
The system supports both nanofiltration (NF) and ultrafiltration (UF) levels. Under high-temperature and high-pressure conditions, membrane pore structure and surface properties are optimized to achieve efficient separation of solvents, solutes, and impurities.
The membrane materials exhibit excellent chemical resistance, maintaining stable structure and performance even in strong acids, strong alkalis, and organic solvent systems.
l Wide Range of Types: Includes acid-resistant, alkali-resistant, and solvent-resistant membranes to suit different corrosive environments.
l Flexible Filtration Precision: Supports both nanofiltration (NF) and ultrafiltration (UF) for diverse separation requirements.
l Long Service Life: Maintains stable performance in corrosive solvent environments with service life lasting several years.
l Excellent High-Temperature Resistance: Operates at temperatures up to 80°C without additional cooling, improving permeation flux.
l High Pressure Tolerance: Withstands operating pressures up to 70 bar, suitable for high-viscosity liquid processing.
l Strong System Compatibility: Higher module pressure drop allows flexible system configuration and process optimization.
l High Recovery Efficiency: Significantly improves recovery rates of organic and inorganic substances, enhancing resource utilization.
l Cost-Effective and Eco-Friendly: Reduces operating costs and emissions, improving overall environmental performance.
l Chemical Industry: Used for organic solvent nanofiltration and final product concentration, suitable for highly corrosive processes such as chlor-alkali production.
l Pharmaceutical Industry: Enables solvent recovery and active ingredient concentration in the production of antibiotics and intermediates.
l Food and Beverage Industry: Applied in CIP (clean-in-place) systems for alkali recovery, improving water and chemical reuse efficiency.
l Paint and Coatings: Recovers paint and organic solvents from cleaning wastewater for reuse.
l Mining and Metal Extraction: Recovers acids in leaching, electrolysis, and electrowinning processes, suitable for alkali metals, precious metals, and rare earth extraction.
l Man-Made Fiber and Pulp Industry: Recovers alkali and cellulose from waste streams, improving resource efficiency.
| Product Name | Membrane Model | Molecular Weight Cutoff [Da] | pH Range | Max Pressure [bar] ([psi]) | Max Temperature [°C] ([°F]) | Typical Applications |
| Acid-Resistant Nanofiltration Membrane | A-3011 | 100 | 0 - 12 | 70 (1,015) | 80 (176) | 20% H2SO4 20% HCl 4% HNO3 30% H3PO4 15% CH3COOH |
| A-3012 | 200 | 0 - 12 | 70 (1,015) | 80 (176) | ||
| A-3014 | 400 | 0 - 12 | 40 (580) | 80 (176) | ||
| Alkali-Resistant Nanofiltration Membrane | B-4021 | 100 | 3-14 | 60 (870) | 60 (140) | 20% NaOH 10% KOH |
| B-4022 | 200 | 3-14 | 60 (870) | 60 (140) | ||
| B-4024 | 400 | 3-14 | 40 (580) | 60 (140) | ||
| Organic Solvent Nanofiltration Membrane | S-3011 | 100 | 2-12 | 70 (1,015) | 60 (140) | Methanol/Ethanol/Propanol, Hexane, Tetrahydrofuran (THF), Acetone/Acetonitrile, Ethyl Acetate, N,N-Dimethylformamide (DMF) |
| S-3012 | 200 | 2-12 | 70 (1,015) | 60 (140) | ||
| S-3014 | 400 | 2-12 | 40 (580) | 50 (122) | ||
| Acid-Resistant Ultrafiltration Membrane | A-U301 | 2,500 | 0 - 12 | 40 (580) | 50 (122) | 20% H2SO4 20% HCl 4% HNO3 30% H3PO4 15% CH3COOH |
| A-1801 | 10,000 | 0 - 12 | 10 (145) | 80 (176) | ||
| Organic Solvent Ultrafiltration Membrane | S-U301 | 2,500 | 2-12 | 40 (580) | 50 (122) | Methanol/Ethanol/Propanol, Hexane, Tetrahydrofuran (THF), Acetone/Acetonitrile, Ethyl Acetate, N,N-Dimethylformamide (DMF) |
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