Hydrometallurgy Solutions for Efficient Copper Extraction and Processing

Macroporous Anion Exchange Resin D301G

D301G is a polystyrene matrix, macroporous, weakly basic anion exchange resin, containing -N (CH3) 2, a weak alkaline to strong alkaline resins, easy regeneration,, resistance to organic pollution. Using a unique process synthesis, and thus has high mechanical strength and chemical stability, Having special selectivity to cyanide gold complex, fast adsorption speed, large adsorption capacity, mainly used for gold extraction.

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Product Description

Index

Name	Specification
Appearance	Opalescent or light yellow opaque spherical beads
Polymer Structure	Polystyrene crosslinked with divinylbenzene
Functional Group	-N（CH3）2
Weight Exchange Capacity	≥4.8mmol/g
Volume Exchange Capacity	≥1.45mmol/ml
Water Retention Capacity	48%~58%
Real Density (g/ml）	1.03~1.06g/ml
Bulk Density (g/ml)	0.65~0.72g/ml
Particle Size Range	0.7~1.6 mm≥95
Whole Bead Count（%）	≥95%

Reference Operation Conditions

Maximum operating temperature	OH40℃，CI100℃
Resin filling height	1~3m
Operating velocity	2~10BV/h
Backwash velocity	4~10BV/h
Regeneration (desorption) velocity	1~2BV/h
Regeneration agent	2BV3~5%HCI，2BV2~4% NaOH

Application

gold extraction

Macroporous Anion Exchange Resin D301G FAQ

What is Macroporous Anion Exchange Resin D301G used for?

D301G is mainly used for removal of weak acid anions, organic acids, and color bodies in water treatment, as well as for decolorization and purification in chemical and pharmaceutical industries.

How does D301G resin differ from gel-type anion exchange resins?

D301G is a macroporous resin with a large pore structure, which allows for better adsorption of larger organic molecules and colloids compared to gel-type resins. This makes it more effective in removing organic contaminants and colorants.

What are the main features of D301G resin?

D301G features high mechanical strength, good chemical stability, excellent regeneration ability, and high adsorption capacity for weak acid anions and organic substances.

In which industries is D301G commonly applied?

D301G is widely used in municipal water treatment, food and beverage processing, pharmaceutical manufacturing, and chemical production to remove impurities and improve product quality.

How is D301G resin regenerated?

D301G is typically regenerated using dilute acid or alkaline solutions, depending on the application. Proper regeneration restores the resin’s ion exchange capacity and adsorption efficiency.

What is the recommended operating pH range for D301G?

D301G performs well within a pH range of 4 to 11, making it suitable for a variety of water treatment and purification processes without compromising resin integrity

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