D301FC anion exchange resin

D301FC anion exchange resin gold absorbing resin often contains solvents, substances that have not participated in polymerization reactions, and a small amount of low polymer, and may also adsorb heavy metal ions such as iron, aluminum, and copper. When the resin comes into contact with water, acid, alkali, or other solutions, the soluble impurities mentioned above will be transferred into the solution, contaminating the effluent quality in the early stages of use. So, the new resin needs to be pre treated before being put into operation.

One Product Name: D301 Large Pore Weakly Basic Styrene Anion Exchange Resin Supply

Detailed information:

2、 Corresponding foreign brands

United States: Amberlite IRA-93; Germany: LewaitMP-60 Japan: DiaionWA-30

3、 Execution standard: DL519-93 SH2605.09-1997 HG/T2165-91 Q/JH 105-2002

四、理化性能.

Indicator Name D301

Full exchange capacity mmol/g ≥ 4.8

Strong functional group capacity mmol/g ≥ 1.0

Volume exchange capacity mmol/ml ≥ 1.4

Moisture content% 48-58

Wet visual density g/ml 0.65-0.72

Wet true density g/ml 1.03-1.06

Particle size% (0.315-1.25mm) ≥ 95

Effective particle size mm 0.40-0.70 ≥ 0.5 0.35-0.50

Uniformity coefficient ≤ 1.60.. 1.60 1.40

After grinding, the percentage of spherical particles is ≥ ..95

Transformation expansion rate% ≤ 35.3535

Resin appearance: milky white or light yellow opaque spherical particles

Factory type: free amine type. Appearance: Milky white or light yellow opaque spherical particles. ......

5、 Operational reference indicators ..

1. PH range: 1-9

2. Operating temperature: OH type 40 ℃ Cl type 100 ℃ ...

3. Industrial resin layer height: 1.0-3.0m

4. Regeneration solution concentration: NaOH 2-4%

5. Regeneration solution dosage: (by calculation)

NaOH (industrial) 40-70 Kg/m3

6. Flow rate of regeneration solution: 4-6 m/h

7. Regeneration contact time: 30-50 minutes

8. Flow rate for washing: 15-25 m/h

9. Washing time: about 30 minutes

10. Operating flow rate: 15-25 m/h

11. Work exchange capacity: ≥ 1000mol/m3

6、 Usage: Mainly used for the preparation of pure water and high-purity water, used as a pre bed or double bed in combination with strong alkali anion resin, which can significantly improve the economic efficiency of operation. This product is also used for the treatment and recycling of electroplating and chromium containing wastewater.

D301FC anion exchange resin gold absorbing resin

Ion exchange resin contains a large number of hydrophilic groups, which absorb water and expand upon contact with water. When the ions in the resin change, such as the cation resin changing from h to na and the anion resin changing from cl - to oh -, they both expand due to the increase in ion diameter, increasing the volume of the resin. Generally, resins with low crosslinking degree have a higher degree of expansion. When designing an ion exchange device, the expansion degree of the resin must be considered to adapt to the volume changes of the resin caused by ion conversion during production and operation.

The present invention belongs to the field of saline alkali land improvement technology, and a method for organic modification of desulfurized gypsum for saline alkali land improvement, wherein desulfurized gypsum is added in the preparation process of weakly acidic cation exchange resin. Beneficial effects: In the preparation process of weakly acidic cation exchange resin, desulfurization gypsum is added to modify desulfurization gypsum, which can synthesize cation exchange resin in situ in the structure of desulfurization gypsum. Not only can calcium ions in desulfurization gypsum replace sodium ions in soil colloids, but hydrogen ions in cation exchange resin also have sodium ion exchange ability, further improving the improvement effect of saline alkali land; At the same time, in the preparation process of weakly alkaline cation exchange resin, the carbonate in desulfurization gypsum can be reacted or converted into calcium sulfate, reducing the harm of carbonate to saline alkali land.