D751 Macroporous Chelating Ion-Exchange Resin-Anion Exchange Resin

• Acid-Base Property: Alkaline Surface Disposal Agent
• Environmental Protection: Yes
• Color: White
• Appearance: Granulars
• Type: Water Treatment Chemical
• Ionic Type: Anion
• Model NO.: D751
• CAS: No
• Gtin: No
• Non Waste Plastics: Yes
• Transport Package: Pallets
• Specification: 25liter/bag, 1cu. ft/bag
• Trademark: Extrepure
• Origin: China
• HS Code: 39140000
• Production Capacity: 60000cubic Meter Per Year

Product Description

D751 Macroporous chelating ion-exchange resin

1. Product Standard:

D751chelating ion-exchange resin is cross-linked polystyrene copolymer structure, the introduction of iminodiacetic acid functional group of the weak acid macroporous cation exchange resin, The selectivity of metal ions similar to EDTA, to remove it from the aqueous solution of divalent cations in order of preference is as follows: Cu²⁺>VO²⁺>UO₂²⁺>Pb²⁺>Ni²⁺>Zn²⁺>Cd²⁺>Fe²⁺>Be²⁺>Mn²⁺>Ca²⁺>Mg²⁺>Sr²⁺>Ba²⁺>Na⁺

Can be seen from the previous, D751 chelating resin demonstrated two divalent metal ions with high selectivity and high affinity. At the same time have been exchanged divalent metal ions in the low PH of the solution is easy to desorption (regeneration) so that chelation group restore exchange adsorption capabilities.

This product is equivalent to the United States: Amberlite IRC-748; Lewatit TP 207/208;

2. Structural formula:

         

3. Physical and Chemical Properties:

Item	Specifications
Structure	divinylbenzene
Appearance	Light   yellow to yellow spherical particles
Functional group	iminodiacetic   acid-based
Volume exchange min  eq/l	≥   2.90
Bead size(0.40-1.25) mm	≥   95%
Water retention  wt. %	55.0-62.0
Wet true density (g/ml)	1.10-1.18
Wet apparent density (g/ml)	0.71-0.77
Transformation of swelling (%)	Na ^+ → H^+ <30
Uniformity coefficient	<1.8
Effective size mm	0.4-0.7
Ionic form as shipped	Na+
Storage Temperature  ºC	-20-40
Storability of the products max	2 years

4. The use of reference indicators:

Item	Refrence value
Operating  pH-range	2-12
Operating temperature max. °C	80
Running velocity m/h	10-20

5. Application:

1. selective removal of ions (including the transition element ion)

2. the recovery of heavy metals from electroplating wastewater

3. removal of metal contaminants in solution

4. hydrometallurgy and extraction of heavy metal concentration in solution

5. removal of heavy metals in groundwater