Aldex Strong Base Anion Series
SB-1 UPS Uniform Particle Size Strong Base, Type 1 Anion
Aldex SB-1 UPS is a uniform particle size, high-quality strong base type 1 styrenic anion resin designed for use in all demineralization systems. The uniformity and mean particle size of Aldex SB-1 UPS were optimized for use in commercial and industrial systems either in single or mixed beds. Aldex SB-1 UPS is typically paired with Aldex C800H LT UPS or Aldex C800H LS UPS. Aldex SB-1 UPS may replace conventional gaussian resins, narrow particle size distribution products as well as competitive UPS resins.
Aldex SB-1 UPS Technical Bulletin: English (PDF)
Aldex SB-1 UPS 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: | 20 to 40 mesh |
Uniformity Coefficient: | 1.2 |
Harmonic Mean: | 30-40 US mesh |
pH Range: | 0 to 14 |
Moisture Content: | 49 to 55% |
Solubility: | Insoluble |
Shipping Weight: | 42 lbs per cubic foot |
Total Capacity Cl- Form: | 1.4 eq/l minimum |
Reversible Swelling: | 25 to 30% maximum |
Recommended Operating Conditions
Maximum Temperature: Hydroxide Form Chloride Form | 140°F 212°F |
Bed Depth: | 24 inches minimum |
Service Flow Rate: | 1 to 5 US gpm/ft3 (8 to 40 BV/h) |
Backwash Flow Rate: | 50 to 75% bed expansion |
Regenerant: | 2 to 6% NaOH |
Regenerant Flow Rate: | 0.25 to 0.9 US gpm/ft3 (2 to 7 BV/h) |
Regenerant Contact Time: | 60 minutes minimum |
Regenerant Dosage Level: | 3 to 8 lbs per cubic foot |
Slow Rinse (Displacement): | 0.25 to 0.9 US gpm/ft3 (2 to 7 BV/h) |
Slow Rinse Volume: | 10 to 15 US 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 1 to 5 US gpm/ft3 (8 to 40 BV/h) |
SB-1 UPS Features
Very low color, taste or odor
Aldex SB-1 UPS 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-1 UPS 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.
Safety Information
A material safety data sheet is available for Aldex SB-1 UPS. Copies can be obtained from Aldex Chemical Co., LTD. Aldex SB-1 UPS 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.
Pressure Drop
Fig. 1 shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.
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-1 UPS in the chloride form.
Operating Capacity
Fig. 3 shows the operating capacity of Aldex SB-1 UPS for acid removal at various regeneration levels when treating an influent with a concentration of 500 ppm, as CaCO3.
Applications
Demineralizations
Aldex SB-1 UPS is widely used in multiple and mixed bed demineralizers, wherever complete ion and organic removal are required. The porosity of Aldex SB-1 UPS 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 strong base resins and can be operated at higher temperature to ensure low silica leakages. The combination of porosity and functionality make SB-1P UPS 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-1 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-1 UPS operated in the hydroxide cycle is a very effective way of providing low silica, and low hardness water for medium pressure boilers.