DL501 Strong-Base Type I (Gel) Acrylic Anion Exchange Resin
DL501 Strong-Base Type I (Gel) Acrylic Anion Exchange Resin
1.Typical physical & Chemical characteristics
| Polymer Matrix Structure______________ | Acrylic Crosslinked with DVB |
| Physical Form and Appearance__________ | Clear spherical beads |
| Whole Bead Count___________________ | 95% min. |
| Functional Groups____________________ | R-N(CH3)3+ |
| Ionic Form ,as shipped________________ | CL |
| Total Exchange Capacity, CL- form, volumetric______________________ | 1.25 eq/l min. |
| Moisture Retention, CL- form___________ | 54-64% |
| Particle Size Range___________________ | +1.2 mm <5%, -0.3 mm <1% |
| Effective Size | 0.4-0.6mm |
| Uniform Coefficient | 1.7 max |
| Swelling CL-→ OH-__________________ | 15-25% |
| Shipping Weight (approx.)_____________ | 680-720 g/l |
| Specific Gravity, moist CL- Form_______ | 1.09 |
| PH Range, Stability___________________ | 0 – 14 |
2.Suggested Operating Condition
| Maximum Temperature OH- Form__________________CL- Form__________________ | 40oC (95oF) max.60oC (140oF) max. |
| Minimum Bed Depth_________________ | 0.6m(24inches) |
| Backwash Rate______________________ | 50 to 75% Bed Expansion |
| Regenerant Concentration | 2 – 6% |
| Regenerant Flow Rate ________________ | 2 to 8 BV/h (0.25 to 1.0gpm/cu/ft.) |
| Regenerant Contact Time _____________ | At least 60 minutes |
| Regenerant Level ____________________ | 112 -300g/L (4 to 10 pounds/ cu/ft.) |
| Displacement Rinse Rate ______________ | Same as Regenerant Flow Rate |
| Displacement Rinse Volume ___________ | 10 to 15 gallons/cu.ft. |
| Fast Rinse Rate ______________________ | Same as Service Flow Rate |
| Fast Rinse Volume ___________________ | 35 to 60 gallons/cu.ft. |
| Service Flow Rate ___________________ | 10-25m/h (2 to 10 gpm/cu/ft.) |
3.Hydraulic Properties
(1)Pressure Drop
The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate, at various temperatures.
(2) Backwash
After each cycle the resin bed should be backwashed at a rate that expands the bed 50 to 75 percent. This will remove any foreign matter and reclassify the bed. The graph below shows the expansion characteristics of DL501 in the Cl form.
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