Chelating resin D409

2020/11/5

　　D409 chelate resin in the macropores styrene - divinyl crosslinking copolymerization sphere on the introduction of the amine phosphate-based chelating gene ion exchange resin product, referred to as D409 chelate resin D409 chelate resin having good divalent metal ionexchange Adsorption on Ca2 +, Mg2 + and other divalent metal ion exchange adsorption is much larger than the Na2 + ion exchange adsorption. Thus, the ion-exchange membrane are widely used in the production of caustic soda apparatus, purified secondary aqueous saline solution. D409 chelating resin, it is recommended for refined secondary brine into the tower saline Sr2 + content of less than 0.5 ppm, D409 chelating resin free chlorine-resistant properties, in order to extend the life of the resin, should be removed from the brine into the tower the free chlorine.
　　D409 chelating resin main purposes:
　　Chelating resins having aminophosphonic gene, the divalent metal ions can be efficiently removed. At present, has been widely used in the chlor-alkali industry, purified secondary brine. The same time, but also for the hydrometallurgy, heavy metals and industrial wastewater treatment and environmental protection industries.
　　D409 chelating resin main physical and chemical properties:
　　The resin matrix: large pores twelve styrene divinylbenzene poly sphere.
　　Chelating functional genes: amino phosphoric acid group [-NH-CH2-PO3Na2]
　　Exchange capacity: the (Cu2 dynamic method)> 0.4mmol/ml-k-Na +
　　Stability: stable pH, organic solvents
　　Appearance: Pale yellow to gray-brown spherical particles.
　　Wet apparent density: 0.70 to 0.80g/ml
　　Wet true specific gravity (20 ° C): 1.10 to 1.20
　　Particle size range: 0.30 to 1.2mm
　　The valid particle size: 0.35 to 0.55mm
　　Uniformity coefficient: <1.7
　　Moisture content: 50 to 65%
　　PH: refined secondary brine 9.0 ± 0.5, recovery of metals varies with the metal.
　　Volume change: in water: R-H/R-Na = 0.75

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Chelating resin D409

Bengbu Tianxing Ion-Resin Co., Ltd.