D301 Macroporous Weakly Basic Styrene‑Based Anion Exchange Resin

PRODUCT DESCRIPTION
This product is a weakly basic anion exchange resin featuring tertiary amine groups [-N(CH₃)₂] on a macroporous styrene-divinylbenzene copolymer. Its mild alkalinity enables effective removal of organic pigments, inorganic acids, and silicate ions in acidic and near-neutral media. It also adsorbs larger molecular impurities and performs well in non-aqueous solutions. This resin offers high regeneration efficiency, large exchange capacity, strong resistance to contamination, and excellent mechanical strength.
Basic Information

Application Overview

Built on macroporous styrene‑divinylbenzene matrix with tertiary‑amine groups, D301 features good organic fouling resistance and easy regeneration. It works in aqueous systems as well as selected non‑aqueous media, widely used in sugar refining, electroplating waste recovery, water desalination, hydrometallurgy, fermentation and fine chemical purification.

Sugar Syrup Decolorization & Ash Removal

Used for cane/beet sugar purification. It adsorbs pigments, colloids and acid salts in raw sugar juice, reduces syrup color, cuts activated carbon consumption and stabilizes crystallization quality.

Chromium Recovery from Electroplating Wastewater

Selectively captures chromate / dichromate from electroplating rinse water. Concentrated chromium eluate can be recycled to production. Treated effluent meets discharge standards or supports on‑site water reuse.

Demineralization for Organic‑laden Raw Water

Combined with strong‑acid cation resin for raw water rich in organics. Removes silicates, mineral acids and humic substances. Output deionized water serves as process water and cooling makeup water.

Leachate Purification in Hydrometallurgy

Polishes ore leachate, adsorbs complex anions of rare & precious metals for metal enrichment. Removes impurity anions to simplify subsequent extraction and precipitation steps.

Fermentation Broth Pretreatment

Neutralizes excess acidity and adsorbs metabolic pigments before downstream separation. Lessens impurity load and improves efficiency for filtration, crystallization and extraction.

Acid Removal for Fine‑chemical Non‑aqueous Streams

Handles acidic impurities in certain organic‑solvent systems, purifies non‑aqueous feedstock and avoids extra salt by‑products from liquid‑alkali neutralization.

Auxiliary: Printing‑dyeing Wastewater Pretreatment

Adsorbs partial anionic dyes and organic acids, lowers color burden for follow‑up biochemical treatment.

FAQ

Product Basics

What is your main product?

We mainly produce ion exchange resins, macroporous adsorption resins, chelating resins, food grade resins, nuclear-grade uniform particle resins, life science chromatography media and supporting system equipment.

How many product types do you have?

We have more than 100 models, over 30 series of adsorption and separation materials.

What is your annual production capacity?

Our annual capacity is 255,000 metric tons.

Are your products comparable to imported brands?

Yes. Our nuclear-grade and uniform-particle resins meet or exceed the performance of imported products.

What certifications do you have?

We hold ISO9001, ISO14001, ISO45001, FDA, CE, WQA Gold Seal, Kosher, REACH, EAC and other international certifications.

What are the key advantages of your resins?

High exchange capacity, uniform particle size, good mechanical strength, strong anti-fouling ability, high regeneration efficiency and long service life.

Application & Selection

What fields are your products used in?

Metal resources (lithium extraction), life sciences, water treatment & ultrapure water, food processing, environmental protection, chemical catalysis.

Which resin is used for sugar refining & decolorization?

Our weak base anion resin is specially used for syrup decolorization, deashing and acid removal.

Can you treat electroplating wastewater (e.g. chromium)?

Yes. Our anion exchange resins and chelating resins effectively remove heavy metal anions, thereby ensuring compliance with discharge standards and enabling resource recovery.

Do you have resins for ultrapure water / semiconductor / nuclear power?

Yes. We supply uniform particle polishing resins and nuclear-grade resins for high-purity water systems.

Do you provide lithium extraction solutions?

Yes. We have delivered 12 salt lake lithium extraction projects with total capacity nearly 100,000 tons LCE.

Operation & Maintenance

What is the service life of your resin?

Under normal conditions, the service life is 3–5 years.

Is regeneration easy?

Yes. Our resins feature high regeneration efficiency, low chemical consumption and low operation cost.

Do you offer on-site commissioning?

Yes. We provide on-site installation, commissioning, regeneration guidance and troubleshooting.

Do you provide technical training?

Yes. We offer free operation, maintenance and safety training for customers.

How about pressure drop and stability?

Uniform particle design ensures low pressure drop, fast exchange speed and stable running.

Customization & Service

Can you customize resins?

Yes. We customize particle size, functional groups, crosslinking degree according to your water quality and process.

Do you provide one-stop solutions?

Yes. We provide full solutions: resin selection + system equipment + commissioning + after-sales.

Do you support global delivery?

We have subsidiaries in Europe, the US and South America, supporting fast worldwide delivery.

What pre-sales service do you offer?

Free selection and process design based on your water quality report and treatment target.

Do you accept small orders / trial orders?

Yes. We support trial orders and small-batch supply for testing and verification.