ZGC258 Macroporous weakly acidic acrylic acid-based cation exchange resin

Description

ZGC258 Macroporous weakly acidic acrylic acid-based cation exchange resin

PRODUCT DESCRIPTION ZGC258

ZGC258 is a macroporous, weakly acidic cation exchange resin based on acrylic containing carboxyl groups. It can be used for softening, dehydration, demineralization, and chemical treatment. It is ideal for softening water with high total dissolved solids (TDS) and special applications such as the purification of aqueous organic solutions and the selective removal of heavy metal ions. It can also be used for the separation and purification of biochemical and pharmaceutical substances.

ZGC258 has a high working capacity for divalent cations and extremely high regeneration efficiency. This resin is available in hydrogen (H) or sodium (Na) form for specialized applications. The ZGC258 series includes three products: ZGC258 for general use; ZGC258FC for dual-layer and floating-bed systems; and ZGC258SC for dual-layer systems. ZGC258DQ is deeply processed for use in water.

FEATURES AND ADVANTAGES
● CARBOXYL FUNCTIONAL GROUPS

Provide very high regeneration efficiency and high working capacity.

● FINE PARTICLE SIZE, LOW HYDRAULIC RESISTANCE

95% of the pellets are within the specified size range, resulting in lower pressure drop.

● HIGH CHEMICAL AND PHYSICAL STABILITY

93% sphericity, combined with low swelling, macroporous structure, high tensile strength and uniform particle size, provide increased resistance to mechanical, thermal or osmotic stress.

PHYSICAL AND CHEMICAL PROPERTIES

Appearance	Milky white or light yellow transparent spherical granules
Structure of the polymer matrix	Polyacrylic
Type	Macroporous weak acid
Functional group	— COON
Ionic form	H+ (or Na+) P PP P
Moisture content %	45 – 52
Capacity in mmol/ml	≥ 4.4
+ HP P Content %	≥ 98
Volumetric density g/ml	0.72–0.80
Density g/ml	1.14–1.20

Dranularity (0.315-1.25 mm) %	≥ 95
Effective particle size range mm	0.35 – 0.55
Homogeneity coefficient	≤ 1.60
Swelling (H→Na) %	≤ 65
Total spherical velocity after grinding %	≥ 90

RANGE OF SCREEN SIZE

ZGC258(ZGC 258DQ)	0.315 – 1.25 mm	50 – 16 ovens
ZGC258 FC	0.45 – 1.25 mm	40 – 16 ovens
ZGC258 SK	0.315 – 0.63 mm	50 – 30 ovens

RECOMMENDED OPERATING CONDITIONS

pH range	4 – 14
High temperature ℃	≤ 100 (for form H)
Total capacity mmol/L	≥ 1600
Bed height m	0.8 – 2.0
regenerating	HCl
Regeneration rate g/mol	40 – 55
Regenerant concentration %	2 – 3
Regenerant flow rate m/h	4 – 5
regeneration temperature °	Normal temperature
Contact time with regenerant min	＞ 30
Exchange flow rate m/h	4 – 5
Exchange time min	20 – 40
Flushing speed m/h	20 – 30
Rinse time min	15 – 20
Operating flow rate m/h	15 – 30

APPLICATION

ZGC258 in hydrogen form can be used to remove divalent cations associated with alkalinity in multi-layer demineralization systems. The weak acid resin can be economically regenerated using spent acid from the secondary cation unit.

ZGC258 is used for the isolation of certain antibiotics from the fermentation media in which they are produced, as well as for their final purification. It can also be used for the purification of amino acids and various biochemical compounds.

ZGC258 Macroporous weakly acidic acrylic acid-based cation exchange resin

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