Product：

D755 diglycolamidic acid chelating resin

Introduction：

Short name D755 chelating resin,structure formula：Similar to the selectivity of metal ions on EDTA, selectivity order: Hg> Cu> Pb> Ni> Cd> Zn> Co> Mn> Ca> Mn> Ca> Mg> Ba> Sr> Na

Physicochemical property indicators：

Indicator

Parameter

Implement stnadard：

Q/DL027-2008

Resin matrix ：

Macroporous benzene - divinylbenzene copolymer spheres

Chelating functional genes ：

iminodiacetic acid base{-CH2N-(CH2NCOONa)2}

Appearance：

Light yellow transparent spherical particles

Finished form：

Na

Wet density ：

0.70～0.80g/m

Wet density （20℃）：

1.10～1.20

Particle diameter range：

0.30～1.20mm

Valid particle diameter：

0.35～0.55mm

Uniformity coefficient ：

1.7

Moisture content：

50～62%

Reference of indicator：

Indicator

Parameter

Swelling degree ：

＜25%

Exchange capacity ：

CU²⁺Dynamic method ≥0.6mmolml-R-Na

Ph value：

Refined secondary brine 9.0 ± 0.5, for the recovery of metal ions vary

Stability：

On the pH, organic solvents and stability requirements for refined secondary brine is no free chlorine when

Volume change ：

In water：R-H/R-Na=0.75