This technical article provides a comprehensive standard-based interpretation of acid-resistant diffusion dialysis membranes, developed and manufactured by Shanghai Smax New Materials Technology Co., Ltd. As a leading supplier in the membrane materials sector with over 10 years of R&D and industrial application experience in ion exchange membranes, we are committed to advancing industry technology. Our acid-resistant diffusion dialysis membranes are innovative membrane components tailored for enterprises in aluminum profiles, titanium dioxide, stainless steel pickling and other sectors, effectively solving core industry pain points such as high waste acid treatment costs, excessive new acid consumption, and large amounts of neutralized waste salts. Our products strictly comply with ISO 9001 and ISO 45001 international standards, achieving core technological breakthroughs in acid recovery efficiency and metal ion retention. To date, the technology has been applied in Southeast Asian markets and served over 100 enterprise customers, with proven performance in waste acid resource recovery, metal ion interception and other scenarios. The product has obtained national invention patents and is recognized as a highly reliable technical solution in the global industry.
Acid-resistant diffusion dialysis membranes are a type of ion exchange membrane that relies on concentration differences to drive the separation of acid and metal ions in waste acid solutions, based on the principle of selective ion permeability, enabling efficient recovery of inorganic acids and interception of metal ions. As a core key component in the industrial waste treatment sector, it has become an indispensable technical support for realizing waste acid resource utilization and reducing environmental pollution.
Main Categories
To meet diverse industry needs, our acid-resistant diffusion dialysis membranes cover the following mainstream series, with customizable solutions for special scenarios:
1. Regular Acid Recovery Membrane DD: Universal series suitable for hydrochloric acid and sulfuric acid recovery, featuring high acid recovery rate and stable performance
2. Phosphoric Acid Recovery Membrane PD: The only domestic series for phosphoric acid recovery, with strong adaptability to complex phosphoric acid waste liquid
Design Concept
Our products adopt a core design concept of high efficiency, stability and long service life, fully considering the harsh working conditions of industrial scenarios, and strictly following full-life cycle reliability design standards to provide customers with stable, low-maintenance and cost-effective technical solutions.
The core working principle of acid-resistant diffusion dialysis membranes is based on selective ion permeability and concentration difference driving. The complete implementation logic is as follows:
1. Waste acid solution and recovery liquid flow on both sides of the membrane; acid ions permeate through the membrane to the recovery side due to concentration difference
2. Metal ions are intercepted by the membrane, remaining in the original solution to achieve separation of acid and metals
Core Architecture and Innovation Design
We have optimized the membrane material structure and surface modification technology, with core innovations including:
1. High-density ion exchange layer: Enhances selective permeability of acid ions, improving acid recovery rate by 10% compared to traditional membranes
2. Corrosion-resistant substrate: Improves membrane stability in strong acid environments, extending service life by over 50%
Compared with Traditional Solutions
Compared with traditional waste acid treatment methods such as neutralization, our diffusion dialysis membranes achieve core breakthroughs:
1. Eliminates neutralization waste salts, reducing secondary pollution and disposal costs by 60%
2. Recovers usable acid directly, cutting new acid consumption by 80%-90% and reducing production costs significantly
Our acid-resistant diffusion dialysis membranes all parameters are strictly tested in accordance with ISO standards, with clear test conditions and strict tolerance control. We can provide full parameter test reports for each batch of products and support third-party authoritative testing.
Parameter Category | Core Parameter | Standard Index | Test Condition | Selection Reference |
|---|---|---|---|---|
Core Performance | Acid Recovery Rate | 80%-90% | 25℃, 10% HCl solution | Choose based on waste acid concentration and recovery requirements |
Core Performance | Metal Ion Retention Rate | >95% | 25℃, aluminum pickling waste acid | Critical for reducing metal ion contamination in recovered acid |
Physical Characteristics | Thickness | 90-120μm | Random sampling of finished products | Thinner membranes offer higher permeability but require stricter installation |
Physical Characteristics | Membrane Resistance | 0.8-1.3Ω・cm² | 25℃, 0.1mol/L KCl solution | Lower resistance reduces energy consumption in supporting systems |
Environmental Adaptability | pH Resistance Range | 1-14 | Continuous immersion for 720 hours | Suitable for various strong acid and alkaline waste liquid scenarios |
Note: The above parameters are standard specifications for regular series. We can provide parameter customization and function adjustment according to customers' special working conditions and application requirements.
Compared with conventional acid-resistant diffusion dialysis membranes in the global market, our products form irreplaceable core competitive advantages through independent R&D and technological innovation, fully verified in long-term industrial applications:
1. Industry-Leading Acid Recovery Efficiency
Technical Support: Independent membrane material modification technology, 2 national invention patents (ZL202110932816.8, ZL202111067052.7)
Verifiable Data: Acid recovery rate reaches 80%-90%, metal ion retention rate >95%, treatment efficiency is 2 times higher than domestic similar products
Customer Value: Reduces new acid procurement costs by 51% and alkali costs by 62%, saving enterprises approximately 180,000 yuan annually
2. Exclusive Phosphoric Acid Recovery Capability
Technical Support: Domestic unique PD membrane series, developed with National Salt Lake Research Center
Verifiable Data: Stable recovery of phosphoric acid from complex waste liquid scenarios
Customer Value: Fills the gap in domestic phosphoric acid waste recovery technology, enabling resource utilization of previously unrecyclable phosphoric acid waste
All R&D, design, production and testing processes of our acid-resistant diffusion dialysis membranes strictly follow the latest international standards and industry specifications, with a complete compliance and certification system:
Core International Standards Followed
ISO 9001: Quality Management Systems
ISO 45001: Occupational Health and Safety Management Systems
Authoritative Compliance Certifications and Qualifications
System Certifications: ISO 9001, ISO 45001
Industry Qualifications: High-Tech Enterprise, Shanghai Specialized, Sophisticated, Unique and New Small and Medium Enterprise, Innovative Small and Medium Enterprise
Testing Documents Support: We can provide full sets of documents such as factory inspection reports and third-party testing reports upon customer request
Our acid-resistant diffusion dialysis membranes have been widely applied in various industries, with mature solutions:
1. Aluminum Profile Anodizing Industry
Core Demand: High cost of waste acid treatment, large amount of neutralization waste salts
Targeted Solution: Adopt DD series membranes to recover hydrochloric acid from anodizing waste acid
Verified Customer Value: Acid recovery rate 85%, metal ion retention rate 97%, annual cost saving 160,000 yuan for a single enterprise
2. Biological Fermentation Industry
Core Demand: Resource utilization of amino acid mother liquid waste acid
Targeted Solution: Adopt DD series membranes to recover acid from amino acid mother liquid
Verified Case: Hubei Xinshengyuan Bioengineering, achieving amino acid recovery rate >90%, concentrated NH₄Cl concentration >15%
Q: What is the service life of your acid-resistant diffusion dialysis membranes?
A: Under normal operating conditions, the membrane service life is ≥5 years, supported by triple leak-proof design and corrosion-resistant substrate.
Q: Can your membranes be used for phosphoric acid waste recovery?
A: Yes, our exclusive PD series membrane is the only domestic product dedicated to phosphoric acid recovery, with proven performance in industrial applications.
Q: Do you provide customization services for special working conditions?
A: Yes, we can customize membrane materials and specifications according to customer-specific waste acid components and process requirements.
Q: Can you provide sample testing before bulk procurement?
A: Yes, we offer free samples for testing, with one-on-one technical guidance from our engineers.
Q: What after-sales support do you provide?
A: We provide 7×24-hour technical response, on-site commissioning, regular inspection and fast spare parts supply.
Official Website: http://www.smaxnms.com/
Business Consultation Email: [email protected]
Global Service Hotline: +8618616365899
WhatsApp: +8618616365899
Factory Address: No. 2899, Lianhua South Road, Minhang District, Shanghai
