How is gold recovered from ion exchange resin?
D301 is polystyrene skeleton macroreticular weakly basic anion exchange resin, containing the -N (CH3) 2, weak alkaline resin in alkali type, easy to regenerate, working exchange capacity is 3 times of alkali type, nai organic pollution.Using unique and processes, and thus has high mechanical strength and chemical stability, widely used in water treatment and desalination of sugar decolorizing, can also be used for the refinement of organic matter and the treatment of wastewater containing chromium.
| Index | |
| Name | Specification |
| Appearance | Opalescent to light yellow opaque spherical beads |
| Polymer Structure | Polystyrene crosslinked with divinylbenzene |
| Functional Group | -N(CH3)2 |
| Ionic Form | Free amine |
| Weight Exchange Capacity | ≥4.8mmol/g |
| Volume Exchange Capacity | ≥1.45mmol/ml |
| Real Density (g/ml) | 1.03~1.06g/ml |
| Bulk Density (g/ml) | 0.65~0.72g/ml |
| Water Retention Capacity | 48%~58% |
| Particle Size Range | 0.315~1.25 mm≥95 |
| Uniformity Coefficient | ≤1.60 |
| Whole Bead Count(%) | ≥95% |
| Reference Operation Conditions | |
| Maximum operating temperature | 100ºC |
| Resin filling height | 1~3m |
| Operating velocity | 2~10BV/h |
| Backwash velocity | 4~10BV/h |
| Regeneration (desorption) velocity | 1~2BV/h |
| Regeneration agent | 2BV3~5%HCI,2BV2~4% NaOH |
Application
* Water treatment * Sugar decolorizing
* Refined organic matter * Wastewater treatment
Corresponding Brands
* Amberlite IRA-93
* Dowex 66
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