Chelated resin

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S/nItemBrand Chelate resinInspection Result1Appearance402A2Ionic formMilk-white

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更新时间：2025-04-07

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S/n	Item	Brand Chelate resin	Inspection Result
1	Appearance	402A
2	Ionic form	Milk-white opaque spherical particles
3	Particle size	Na	98.10
4	(mm)	0.45-0.6	1130
5	Wet density in wet state (g/L)	1130	1.3
6	Total ion exchange capacity	1.3	760
7	(Ekv/L)	700-800	1130
8	Bulk density (kg/m3)	1130	1.3
9	True density g/L	1.3	1.15
10	Penetration (Ekv/L)	1.10-1.20	55-65
11	Specific density (g/mL)	55-65	9-11
12	Working temperature (℃)	9-11
13	PH	Styrene/divinylbenzene	1.45

Sulfur-based resin A74

Description

Resin A74 is a macroporous thiol chelating resin based on polystyrene with functional groups, designed for the selective removal of mercury and the extraction of precious metals from industrial wastewater (when they exist in the form of divalent cations)

Selectivity A74: Hg>Ag>Cu>Pb>Cd>Ni>Co>Fe>Ca>Na.

As for mercury extraction, A74 can remove it to below 5 ppb.

A74 can be useful in cases where Au, Pt, Pd ions need to be removed. Applications can be found in various fields of chemical engineering, such as wastewater treatment, recovery of precious metals from rinse water in the electronics industry.

A74 can work in a wide pH range, suitable for both acidic and alkaline environments (2-10 PH).

No.	Items	Specifications	Data From Analysis
1	Appearance		Milky white to light grey spherical particles
2	Particle size (0.4-1.25 mm) (%)	≥95	99.10
3	Wet density (%)	700-800	750
4	Wet true density (g/L)	1050-1150	1100
5	Total capacity (eq/L)	≥3.0	3.90
6	Uniformity coefficient	≤1.6	1.56
7	Water content	38-48	44
8	Qualitative exchange density not less than g/ml	8	8

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Chelated resin

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