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Sunresin is an innovation oriented high-tech enterprise, and both technology innovation and development model innovation, are driving Sunresin to step by step on a new level.

Mobile Sorption Module for Gold Extraction

Unlocking the Potential of Small-Scale Gold Deposits
As the gold value continues to rise, small-scale and previously uneconomical gold resources are gaining strategic value. These include tailings, weathered crusts, overburden dumps, and off-balance stockpiles—often overlooked due to their challenging scale and low-grade nature.
SepGold™ by Sunresin offers a turnkey, mobile, and cost-effective solution specifically engineered to recover gold from these complex deposits. Utilizing proprietary resin technology and a compact, modular design, SepGold™ enables mining operations to transform marginal resources into profitable production sites.
 
 
About Sunresin
Sunresin New Materials Co., Ltd. is a global leader in synthetic ion-exchange resins and adsorbent materials, headquartered in Xi’an, China. As the largest manufacturer of ion-exchange resins in China and a publicly listed company with a market capitalization of $4.5–5.4 billion USD, Sunresin provides turnkey EPC (Engineering–Procurement–Construction) solutions for more than 25 industrial applications across the globe.
With full vertical integration, Sunresin ensures quality, speed, and innovation from resin synthesis to complete plant delivery. The company is committed to sustainability, cost-efficiency, and technological advancement in separation processes for the mining, environmental, and chemical industries.
 
 
Why SepGold™?
Traditional large-scale gold extraction systems are ill-suited for small or scattered gold deposits. The high capital and operational costs often make them unviable. SepGold™ was designed to overcome this barrier—making low-grade, oxidized gold ores economically recoverable.
 
 
SepGold™ is ideal for:
  • Heap or vat leach operations with filtered PLS
  • Tailings and beneficiation waste
  • Overburden and oxidation zones
  • Remote or off-grid gold projects
 
Key Features of the SepGold™ Module
  1. Mobile & Skid-Mounted: Easily relocatable via road or trailer
  2. Modular & Scalable: Plant capacity grows by adding units
  3. Low CAPEX and OPEX: Designed for efficiency in both investment and operation
  4. Minimal Freshwater Use: Sorption and desorption share common reagents
  5. Turnkey Delivery: Fully pre-assembled and tested prior to shipment
  6. Remote Monitoring & Automation: Reduces labor and simplifies operation
  7. Standardized Footprint: Frame fits in 40’HC shipping containers, matches trailer dimensions for seamless transport
  8. SepGold™ by Sunresin offers a turnkey, mobile, and cost-effective solution specifically engineered to recover gold from these complex deposits. Utilizing proprietary resin technology and a compact, modular design, SepGold™ enables mining operations to transform marginal resources into profitable production sites.
 
Advanced Process Technology: Simulated Moving Bed (SMB)

At the core of SepGold™ is a Simulated Moving Bed (SMB) design—a highly efficient configuration for continuous gold recovery. In this system:

  • Resin columns remain fixed; their function cycles automatically
  • Each column operates in stages:
  1. Gold sorption from pregnant leach solution (PLS)
  2. Backwashing of solids
  3. Upgrading of gold loading from desorbate
  4. Countercurrent desorption
  5. Resin washing
  • Automated valve switching controls the entire cycle without manual handling
  • Columns and cycle times are optimized based on specified data (gold concentration, pH, resin kinetics)
 
SepGold™ Performance Snapshot
Parameter Value
PLS Gold Concentration 1.08 g/m³
pH 10.3
Resin Capacity 560 g/m³
Flow Rate 80.4 m³/h
Sorption Recovery 90%
Annual Output ~680 kg of gold
 
 
Deployment and Logistics
SepGold™ modules are:
  • Shipped fully pre-assembled in containerized frames
  • Designed to fit 40-foot high cube containers
  • Sized to match standard trailer capacity for direct overland transport
  • Plug-and-play: Only utility connections (water, power) are needed on-site
  • Pre-integrated with pumps, tanks, valves, sensors, and automation systems for rapid startup
 
Global Applications
SepGold™ has been developed with international deployment in mind. The system is suitable for:
  • Artisanal and small-scale mining (ASM)
  • Remote sites without infrastructure
  • Seasonal or pilot projects
  • Environmentally sensitive operations seeking low-impact gold recovery
Applications are already being explored across Africa, Latin America, Central Asia, and Southeast Asia, supported by Sunresin’s global engineering and service teams.
 
 
Partner with Sunresin
From concept to commissioning, Sunresin offers full-service support including:
  • Flow sheet development
  • Module manufacturing
  • Field installation and startup
  • Operator training and ongoing technical support
Whether you're reprocessing tailings, developing a pilot operation, or expanding into new terrain, SepGold™ provides a reliable, scalable, and sustainable gold recovery platform.
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PFAS Removal

 

 
 
 

Efficient PFAS Removal with Sunresin Ion Exchange Technology

Advanced solutions for removing "forever chemicals" from water sources, ensuring safety and sustainability.

 

The PFAS Challenge

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are persistent, hazardous chemicals that pose growing health risks through drinking water, surface water, and industrial discharges. Known as "forever chemicals" due to their resistance to degradation, PFAS have been linked to serious health issues including immune suppression, thyroid disorders, liver damage, and reproductive problems—even at extremely low concentrations.

99%

of U.S. population has PFAS in blood

11,000+

PFAS compounds in global use

PFAS Contamination

Understanding PFAS Contamination

 

Industrial manufacturing sites

 

Military bases with firefighting foam

 

Landfills and wastewater treatment plants

 

Agricultural runoff from contaminated soil

 
 

Why Ion Exchange for PFAS Removal

Sunresin’s ion exchange technology offers a high-performance solution for the selective removal of PFAS from both drinking and industrial water.

How It Works

Our specially engineered anion exchange resins feature quaternary ammonium functional groups that selectively attract and bind negatively charged PFAS molecules—including long-chain compounds like PFOA and PFOS, as well as the increasingly concerning short-chain variants.

 

Selective Binding

Resins designed to target PFAS molecules specifically

 

Efficient Removal

Removes PFAS to parts per trillion (ppt) levels

 

Regenerative Process

Resins can be regenerated for repeated use

Key Advantages

Compared to traditional technologies such as Granular Activated Carbon (GAC) or Reverse Osmosis (RO), ion exchange provides distinct advantages:

  •  

    Faster Adsorption

    Faster PFAS adsorption kinetics than GAC

  •  

    Higher Selectivity

    Higher capacity for both short- and long-chain PFAS

  •  

    Compact Design

    Smaller system footprint, reducing space demands

  •  

    Long Lifespan

    Longer operational lifespan under low-concentration conditions

Technology Comparison

Technology Removal Efficiency Selectivity Footprint Operational Cost Regenerability
Ion Exchange
99.9%
High
Small
Low
Yes
GAC
85-95%
Medium
Large
Medium
No
Reverse Osmosis
90-98%
Low
Medium
High
Partial

Introducing SEPLITE® LSI 106G Resin

Sunresin’s SEPLITE® LSI 106G is a high-performance, gel-type strong base anion resin specifically developed for PFAS and perchlorate removal in drinking water applications.

SEPLITE® LSI 106G Resin

SEPLITE® LSI 106G

High-Performance PFAS Removal Resin

Product Overview

Capable of reducing PFAS to parts per trillion (ppt) levels, this resin ensures non-detectable concentrations and consistent compliance with stringent regulations.

Product Specifications
  • Type: Strong Base Anion Exchange Resin
  • Matrix: Crosslinked Polystyrene
  • Functional Group: Quaternary Ammonium
  • Physical Form: Moist Spherical Beads
Performance Data
  • Total Exchange Capacity: ≥1.3 eq/L
  • Moisture Content: 50-56%
  • Particle Size: 0.6-1.2 mm
  • pH Range: 0-14
Learn More About SEPLITE® LSI 106G

Key Benefits

  •  
    Comprehensive Removal

    Removes long-chain & short-chain PFAS

  •  
    Rapid Processing

    Achieves faster equilibrium than GAC

  •  
    High Capacity

    Long-lasting operation with low breakthrough risk

  •  
    Long-Term Reliability

    30% higher adsorption capacity than conventional AER

SEPLITE® LSI 106G helps you meet the strictest global regulations for PFAS in drinking water.

US EPA Health Advisory

4 ppt

EU Drinking Water Directive

0.1 μg/L

California MCL

5.1 ppt

Massachusetts MCL

20 ppt

Applications Across Water Treatment Sectors

Sunresin’s PFAS-selective resins are successfully deployed in a wide range of applications, addressing diverse water treatment needs.

Ion Exchange Resin Innovation Leader

As Asia’s largest ion exchange resin manufacturer, Sunresin is committed to environmental protection through advanced separation technologies. With over 20 years of experience, more than 200 resin products, and a robust annual production capacity of 100,000 m³, we deliver tailored, efficient, and sustainable water treatment solutions worldwide.

20+

Years Experience

200+

Resin Products

100K+

Annual Production (m³)

500+

Technical Experts

Sunresin Manufacturing Facility
 

Global Recognition

Trusted by over 50 countries worldwide

 
 

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Bio-Pharmaceutical & Life Science

Antibiotic purification; Peptide antibiotic synthesis; Enzyme-catalyzed reaction; Chromatographic separation
 
Modern biopharmaceutical technologies typically use biological microbial fermentation processes, enzyme-catalyzed reactions, or biologically metabolites obtained by cell culture. Biosynthesis technology can produce many active substances, such as antibodies, antibiotics, etc., but the concentration of biologically active substances is very low, and some is easy to be inactivate, the content of impurities is very high, and many impurities and targets have similar physical and chemical properties, which result Separation and purification difficult.
 

Sunresin's large pharmaceutical research and development department has proposed different solutions to various problems arising in the biopharmaceutical process through an in-depth understanding of the upstream and downstream industries of biopharmaceuticals. So far, many of our products have been successfully used in the Chinese market.

 

Our Advantages

• Upstream and downstream multi-point solutions for the biopharmaceutical industry

• High-standard resin production line special for the pharmaceutical industry

• Technical supporting

 

Our Technique for Bio-pharmaceutical & Life Science

• Peptide antibiotic synthesis--solid phase peptide synthesis

The initial peptide antibiotics are also biosynthesized and extracted from the culture of polymyxa or aeruginosa.

Another synthetic method of peptides is chemical synthesis, which is divided into liquid phase chemical synthesis and solid phase chemical synthesis. The liquid phase method is mainly used for the synthesis of short peptides. The solid phase synthesis method can be used to prepare long-chain peptides, cyclic peptides, and complex Peptide.
 

• Enzyme-catalyzed reaction--immobilized enzyme carrier

The enzyme immobilization technique is to immobilize the free enzyme on a solid support by physical or chemical means, and it needs to keep the same activity as the free enzyme.
 

• Bio-pharmaceuticals separation--Ion exchange and adsorption Resin & system

Ion exchange and adsorption method is a cost-efficient separation technique that has been widely used in the pharmaceutical industry. It is primarily a way to achieve separation and purification on a large scale with ion exchange systems with complex and designable ion exchange resins. It removes impurities, concentrates the target, and produces highly pure pharmaceuticals.
 

• Chromatographic separation--chromatography media

Separation of pharmaceuticals is often a very complex process, especially for substances with similar structures, such as isomers. At this time, it is necessary to perform high-purity pharmaceutical by means of chromatography separation.
 
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Drinking Water Treatment

Ion Exchange Solutions for Drinking Water Treatment
Drinking water is essential to life. Every day every human being has to drink and use water for food preparation. Water needs to be clean and potable so that if is Safe for use most importantly for our Children. SUNRESIN is providing a wide range of Ion Exchange Resins to prepare Water for Human consumption.
drinking water

EPC Customized Solutions

 
Now, Sunresin provides the customized solutions of drinking water treatment project, our EPC project delivery service, including the Resin Exploiting, Resin Supply, Process evaluation, Solution designing, Equipment Processing, Equipment Installation, Project Commissioning, Operation Training and Technical support.

Our Advantages

 

  • All series resins for drinking water treatment
  • Water treatment resin manufacturing technique
  • Adequate resin production capacity
  • Supporting Equipment & system
  • Reliable EPC project cases

Typical Applications

 

  • Drinking water & Potable water
  • Underground water treatment

 

LEARN MORE 

Food & Beverage Industries

Separation technique based on ion exchange & adsorbent for food industy

Food is closely related to everyone, and the finishing of food comes from people's relentless pursuit of high quality food. The color, taste, smell, and safety of food are all people's attention. In particular, food safety has been included in the scope of legislation.

There are many ways to finish the processing of food raw materials. The ion exchange and adsorption resins are often used in the later finishing process due to their good selectivity and high processing precision, since it provides an effective and safe path for improving the quality of food ingredients, which could remove the deeper color of the food, remove the odor, remove the pesticide residue, and even make it more comfortable taste.

 
More than a decade ago, China's juice industry faced severe challenges because pesticides were used in apple cultivation. Although the fruits were strictly cleaned, the final juices were still exceeding the standard for pesticides. The Chinese juice manufacturing industry is facing the risk of shutting down. At this time, Sunresin started the research on juice purification technology, and first introduced the juice resin for removing pesticide residues, and introduced the whole process in time.
Sunresin is fully rolled out in the Chinese market, and Chinese juice makers are all benefiting from Sunresin's technology.
 
Sunresin was also become into the first provider applying the resin adsorbent techniques in food processing. Up to now in the Chinese market, the adsorbent techniques applied in juice industries all originate from Sunresin initiation. After nearly 20 years of continuously technical innovation and industrialization in this field, new resins and solutions specialized for food processing have stood firmly in the market, which are separately specified for nutrition products, fruit juices such as apple, orange, pear, pineapple, lemon, grape and pomegranate, as well as in sugar industries. More than 5000M3 of the these products have been supplied to beverage industry of both domestic and overseas with over tens of production lines scoping from 5t/hr to 100t/hr.
 
As the first and the only A-share listed company in Chinese ion exchange and adsorption resin industry, Sunresin is one of the few integrated purification solutions providers in China. Chinese manufacturers rely on Sunresin's technology. Through several years of hard work, Sunresin's EPC project has gradually landed several countries.
 
Our Advantages
• 20 years technical innovation 
• All series resins for food industry 
• Supporting Equipment & system 
• Successful EPC project cases
 
Typical Applications
• Starch sweeteners refining
• Beet sugar refining
• Sugar cane decolorization
• Chromatographic separations
• Amino acids purifications Citrus debittering
• Juice deacidification and decolorization
• Protein haze stabilization in beer, wine and some fruit juice
• Citric and lactic acid production
• Plant extract and polyphenol recovery
• Whey and gelatin de-ashing
LEARN MORE 

Hydrometallurgy & Mining

Hydrometallurgy is a technique for extractive metallugry involving the three general area: leaching; solution concentration and purification; metal or metal compound recovery. Ion exchange technologies are usually used in the second area. Cation, anion, 
 
Chelating ion exchange resins and adsorbent resins  are all used to exchange cation, anion with the solution so as to enrich metals for recovery and reuse, or removal and disposal. This is a technology for metals resource recycling or impurities removal of high-purity metals.
Metals Resource Recycling-SEPLITE
Ion exchange resins  can separate, concentrate, purify and extract uranium from depleted uranium ore and extract precious metals such as vanadium, tungsten, molybdenum, rare earth elements and gold and silver.
 
Sunresin has made R&D of many metal ions for several years, and exploited a series high-selectivity resins aiming at these metal ions, which are usually used in combination to produce high-purity metals in different functions in the metals processing industries. 
 
Sunresin's gallium extraction technique from Bayer mother liquor, and lithium extraction from brine with high lithium magnesium ratio, Battery-grade lithium carbonate production technique have achieved great success in China and have produced significant economic benefits.
 
Gallium-Ga Lithium-Li, Nickel-Ni, Copper-Cu,
Vanadium-V, Rhenium-Re, Scandium-Sc, Iron-Fe,
Cobalt-Co Boron-B Mercury-Hg gold-Au
platinum-Pt palladium-Pd Uranium-U  
As the first and the only A-share listed company in Chinese ion exchange and adsorption resin industry, Sunresin is one of the few integrated purification solutions providers in China. Chinese manufacturers rely on Sunresin's technology. Through several years of hard work, Sunresin's EPC project has gradually landed several countries.
 

Sunresin's Advantages

 

• Selective resins for many metal ions

• Supporting Equipment & system

• Successful EPC project cases

Sunresin's Advantages

 

• Ga recovery from Bayer liquor in the Alumina industry

• Ga recovery and Fe removal in alumina production from coal ash

• Lithium carbonate recovery from bittern of saline lake

• Scandium & Zinc recovery

• Cobalt removal from Nickel sulfate solutions

• Removal of Iron and Calcium and extraction of Gallium from fly ash production of Alumina

• Extraction of Lithium carbonate in salt lake brine

• Remove Boron from magnesium chloride brine

• Extraction and separation of precious metals such as Gold, Silver, Platinum, Palladium, Rhodium, etc

• Extraction of uranium

• Extraction of metal oxides such as Tungsten and Molybdenum

• Remove iron in Zinc/Nickel electrolyte circulation

• Recovery of Rhenium from waste acid in metallurgical industry

• Recovery of Platinum and Rhodium from nickel ammonium sulfate solution

• Separation and recovery of residual organic matter, such as tributyl phosphate and diethyl hexyl phosphate, by electrolyte or metal purification liquid-liquid extraction

• Recovery of metal catalysts in organic phases in the organic and synthetic fields

• Removal of chloride ions from manganese sulfate electrolyte

• Removal of Bismuth and Antimony from copper electrolyte

 

LEARN MORE 

Industry Water Treatment

Ion Exchange Resin for Water Softening, Demineralization, Harmful Ion Removal
There are many uses of water in industry and, in most cases, the used water also needs treatment to render it fit for re-use or disposal. Raw water entering an industrial plant often needs treatment to meet tight quality specifications to be of use in specific industrial processes. Industrial water treatment encompasses all these aspects which include industrial wastewater treatment, boiler water treatment and cooling water treatment.
ion exchange & adsorbent for food industy-SEPLITE
In the electronics industry, from the cleaning of various electronic components to the preparation of a series of process solutions, high-quality pure water is needed, especially for the production of semiconductor devices and large-scale integrated circuits. Ultra-pure is used in almost every process. Water cleaning. Ultra-pure water plays an increasingly important role in the electronics industry and has become one of the important factors affecting the quality and production cost of electronic components.
 
Agriculture is by far the largest water use at global level. Irrigation of agricultural lands accounted for 70% of the water used worldwide.The water quality used for irrigation is essential for the yield and quantity of crops, maintenance of soil productivity, and protection of the environment. For example, the physical and mechanical properties of the soil, ex. soil structure (stability of aggregates) and permeability, are very sensitive to the type of exchangeable ions present in irrigation waters.
 
Sunresin has exploited all type of ion exchange resins, Mixed bed resins, chelating resins, with potable grade,Ultrapure water grade, nuclear grade,layered bed usage, packed bed usage, in order to solve the industry, irrigation water problems.
Our Advantages
 

• All series resins for water treatment

• Ultra-pure resin manufacturing technique

• Adequate resin production capacity

• Supporting Equipment & system

• Reliable EPC project cases

Typical Applications
 

• Industrial Softening & demineralization

• Condensate polishing

• Nuclear Power plant

• Electronics Industry

• Ultrapure water production

• Irrigation water removing harmful ion

• Aquarium water treatment

 

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Plant Extraction

Separation Technique Based on Adsorbent for Extracting Plant Compounds
Plant Extraction is a process to gather the trace bioactive compounds from the tissue of a plant.
In fact,mankind discovered the benefits of plants very early,such as for food or pharm application. Especially in China, people have discovered the medicinal value of plants and it was widely used in disease treatment or health care. The treatment was mainly through the method of water decoction, and later developed a lot of solvent extraction technology. Modern planting technology combines multiple separation methods in a more efficient and precise way.
 
With the development of resin technology, More and more adsorbents are succeed in plant extraction industry. The technology simplify the process, raising the production efficiency, improving the quality of target compound, and promoting the plant extraction industry all over the world.
Adsorbent for Extracting Plant Compounds-SEPLITE
 
 
Based on the molecular size and polarity of the target object, we have developed a range of common resins that can be used for most substances.
 
In addition, we have also developed some special-purpose resins that can achieve high-efficiency separation. 
 
At the same time, in order to further improve the quality of the target, we have developed a series of impurity-removing resins and some chromatographic medias that can achieve fine separation of isomers.
 
As the first and the only A-share listed company in Chinese ion exchange and adsorption resin industry, Sunresin is one of the few integrated purification solutions providers in China. Chinese manufacturers rely on Sunresin's technology. Through several years of hard work, Sunresin's EPC project has gradually landed several counries.
Our Advantages
 

• Many years technical innovation

• All kinds of adsorbents for plant extraction

• Supporting Equipment & system

• Successful EPC project cases

Typical Applications 
 

• Extraction of chlorogenic acid from Eucommia and honeysuckle

• Extraction of anthocyanin from Cranberry and blackcurrants.

• Extraction of proanthocyanidins from grape seeds.

• Extraction of Stevia

• Extraction of Gingko flavonoids

• Extraction of soy isoflavones

• Extraction of tea polyphenols, effectively remove caffeine and improve EGCG and ECG content.

• Extraction of alkaloids, amino acid and peptides.

• Decoloration of saponins, stevia, etc. extracts.

• Chromatography purification of effective component and antibiotic from plant extracts. Separation of amino acids, protein removal, purification of natural products such as chlorogenic acid.

• Purification of tea alkaloids.

 

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Wastewater Treatment

Ion Exchange Solutions for Wastewater Treatment
Wastewater treatment is the process of converting wastewater into an effluent that can be discharged back into the environment with a legal standard, which is certified generally less impact on the water cycle; the effluent is directly reused for other purposes. At the same time, the Valuable components from wastewater could be enriched as resource recovering.
 
Industry wastewater treatment is a complex process since there are different kinds of pollutants against different industries, such as petrochemical industry, Coal Chemical Industry, Dye chemical, pesticides industry, Pharmaceuticals, electroplate industry, Electronic industry, hydrometallurgy industry.
 
As the first and the only A-share listed company in Chinese ion exchange and adsorption resin industry, Sunresin is one of the few integrated purification solutions providers in China. Chinese manufacturers rely on Sunresin's technology. Through several years of hard work, Sunresin's EPC project has gradually landed several countries.
 
wastewater treatment&reuse
 
 

EPC Customized Solutions

Now, Sunresin provides the customized solutions of wastewater treatment project, our EPC project delivery service, including the Resin Exploiting, Resin Supply, Process evaluation, Solution designing, Equipment Processing, Equipment Installation, Project Commissioning, Operation Training and Technical support.
 

Our Advantages

 

• All kinds of resins for organic & inorganic matter

• Supporting Equipment & system

• Successful EPC project cases

 

Typical Applications

 

• Recycling of phenols

• Recycling of amines

• Recycling of organic acids

• Recycling of nitro-, halogenated hydrocarbon

• Recycling of metals like Mo, V, W in hydrometallurgy

• Removing heavy metals from waste water in electroplate, hydrometallurgy, circuit board etc

• Separation and recycling of low and medium alkanes

• In recycled water project recovering low-medium boiling solvent

• Removing organic, color and ammonia nitrogen to lower RO discharge to standard.

 

LEARN MORE 

Contact Us

Sunresin Park,No.135, jinye Road, Xi’an Hi-tech Industrial Development Zone, Shaanxi-710076, China
seplite@sunresin.com seplite_europe@sunresin.com +86-29-89182091
CONTACT US
Here to Provide Complete Separation and Purification Solutions
Sunresin Park,No.135, jinye Road, Xi’an Hi-tech Industrial Development Zone, Shaanxi-710076, China
Call us on:
+86-29-89182091
+86-29-89182091
seplite@sunresin.com