ALDEX Strong Base Anion Series
SB-1P Strong Base Anion Exchange Resin
Aldex SB-1P is a highly porous, organic fouling resistant, strongly basic, Type 1, gel anion resin, supplied in the chloride form as moist, tough uniform spherical beads. Aldex SB-1P is intended for use in all types of deionization systems and chemical processing applications.
Aldex SB-1P Technical Data Sheet: US units (PDF) | Metric (PDF) | Français
Aldex SB-1P Safety Data Sheets: English (PDF) | Français (PDF)
Physical Chemical Properties
| Polymer Structure: | Styrene crosslinked with divinylbenzene |
| Functional group: | R-N-(CH3)3 |
| Ionic Form as Shipped: | Chloride |
| Physical Form: | Tough, Spherical beads |
| Screen Size: +16 mesh -40 mesh -50 mesh | 16 to 50 mesh <2% <2% <1% |
| pH Range: | 0 to 14 |
| Moisture Content: | 51 to 56% |
| Solubility | Insoluble |
| Shipping Weight: | 43 lbs per cubic foot |
| Total Capacity Cl- Form: | 1.3 meq/ml minimum |
| Sphericity: | 90+% minimum |
Recommended Operating Conditions
| Maximum Temperature: Hydroxide Form Chloride Form | 120°F 170°F |
| Bed Depth: | 24 inches |
| Service Flow Rate: | 2 to 4 US GPM per cubic foot |
| Backwash Flow Rate: | 50 to 75% bed expansion |
| Regenerant: | 2 to 6% |
| Regenerant Flow Rate: | 0.25 to 1.0 US GPM per cubic foot |
| Regenerant Contact Time: | 60 minutes minimum |
| Regenerant Dosage Level: | 4 to 10 lbs per cubic foot |
| Slow Rinse (Displacement) | 0.25 to 1.0 US GPM per cubic foot |
| Slow Rinse Volume: | 10 to 15 gallons per cubic foot |
| Fast Rinse Rate: | 2 to 4 US GPM per cubic foot |
| Fast Rinse Volume: | 35 to 60 US gallons per cubic foot |
SB-1P Features
Very low color, taste or odor
Aldex SB-1P meets the requirements for paragraph 173.25 of the Food Additive Regulation of the U.S. Food and Drug Administration.
High Capacity
The high total capacity of Aldex SB-1P allows greater capacity in applications where high levels of regeneration are used, or in one-time use applications such as precious metal recovery and cartridge deionization.
Long Life
Strong and durable beads ensure long service life.
Superior Physical Stability
Over 90% sphericity combined with high crush strengths and uniform particle size provide greater resistance to bead breakage due to mechanical, thermal or osmotic stresses.
Potable Water
For potable water applications the resin must be properly pretreated, usually multiple exhaustion and regeneration cycles, to ensure compliance with extractable levels.
Pressure Drop
Fig. 1 shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.
Fig. 1 Pressure Drop vs Flow Rate at various degrees Fahrenheit (F°)
Backwash Characteristics
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. Fig. 2 shows the expansion characteristics of Aldex SB-1P in the chloride form.
Fig. 2 Bed Expansion vs Flow Rate at various degrees Fahrenheit (F°)
Operating Capacity
Fig. 3 shows operating capacity of Aldex SB-1P for acid removal at various regeneration levels when treating an influent with a concentration of 500 ppm, as CaCO3.
Fig. 3 Operating Capacity
Applications
Demineralizations
Aldex SB-1P is widely used in multiple and mixed bed demineralizers, wherever complete ion and organic
removal are required. The porosity of Aldex SB-1P provides the capability of reversibly sorbing naturally occurring organic substances that tend to foul anion resins.
Type 1 anion exchanges have greater thermal and oxidation resistance than other types of stong base resins and can be operated at higher temperatures to ensure low silica leakages. The combination of porosity and functionality make SB-1P the resin of choice where the water temperature is in excess of 85°F or where the combination of carbon dioxide plus silica exceeds 40% of the total anions.
The low density of Aldex SB-1P provides maximum
separation during the regeneration cycle of mixed bed demineralizers. This results in longer service runs and higher quality effluents.
Desilicizers
In certain applications, water supplied with low dissolved solids need only be treated for hardness and silica removal. Aldex C-800 operating in the sodium cycle followed by Aldex SP-1P operated in the hydroxide cycle is a very effective way of providing low silica, and low hardness water for medium pressure boilers.
Safety Information
A material safety data sheet is available for Aldex SB-1P. Copies can be obtained from Aldex Chemical Co., LTD. Aldex SB-1P is not a hazardous product and is not WHMIS controlled.
Caution: Acidic and basic regenerant solutions are corrosive and should be handled in a manner that will prevent eye and skin contact. Before using strong oxidizing agents in contact with ion exchange resin, consult sources knowledgeable in the handling of these materials.