ResinTech - Model SBG2-UPS -Narrowly Graded Chloride Form Type 2 Gel Strong Base Anion Resin

• Polymer Structure: Styrene/DVB
• Polymer Type: Gel
• Functional Group: Dimethylethanolamine
• Physical Form: Spherical Beads
• Ionic Form (as shipped): Chloride or Hydroxide Form
• Total capacity: > 1.4 meq/mL (Cl Form)
• Water Retention: 40 to 53 percent (Cl Form)
• Approximate Shipping Weight        : 44 lbs/cu.ft. (Cl Form)
• Swelling: 10 to 15 percent Cl to OH
• Screen Size Distribution : 16 to 50 (U.S. Mesh)
• Maximum Fines Content: 0.5 percent (
• Minimum Sphericity: 95 percent
• Uniformity Coefficient: 1.25 (Approximate)
• Resin Color: White to amber

Highly Uniform Particle Size

20 to 40 mesh size, provides low pressure drop and superior kinetics

High Operating Capacity

Type 2 anion provides high regeneration efficiency and high throughput per pound of caustic regenerant

Superior Physical Stability

95% plus sphericity and high crush strengths together with carefully controlled particle distribution provides long life and low pressure drop

Complies with Us FDA Regulations

Conforms to paragraph 21CFR173.25 of the Food Additives Regulations of the US FDA

Demineralization

ResinTech SBG2-OH-UPS can be used as the anion component in a variety of demineralization applications where a hydroxide form anion resin is coupled with a hydrogen form cation resin. SBG2-OH-UPS is more efficiently regenerated than type 1 resins such as SBG1-OH-UPS and often has higher operating capacity. SBG2-OH-UPS does not have the fishy odor typically associated with type 1 anion resins.

Trace Contaminant Removal (U, Cr, As, Se, ClO4)

ResinTech SBG2-UPS has high capacity in the chloride form and can be used to remove a variety of trace contaminants, even when that contaminant is not highly preferred compared to the other bulk ions in the feedwater. Useful capacities are obtained when the feed TDS is substantially less than the resin’s internal TDS. Uranium, chromate, and perchlorate are particularly well removed. Arsenate and selenate are well removed but can be chromatographically displaced by sulfate and other ions.

Nitrate Removal

ResinTech SBG2-UPS can be used in the chloride cycle to reduce nitrates along with sulfates. Although high operating capacities and high salt efficiency can be obtained, there is also the possibility of nitrate dumping. Use of chloride form anion resin reduces the pH of the product water during the early part of the exhaustion cycle. When treating waters with high hardness the brine dilution and displacement waters should be softened and a low hardness salt used to prevent scaling due to calcium sulfate precipitation during regeneration.

Sulfate Removal

High capacity chloride form resins such as ResinTech SBG2-UPS have high affinity for divalent anions such as sulfate, provided the feedwater TDS is not greater than about 5,000 ppm. At higher TDS the resin loses its affinity for sulfate and begins to prefer chloride. Regeneration is accomplished with sodium chloride brine in a fashion similar to a water softener.

Dealkalizer

ResinTech SBG2-UPS can be used in the chloride cycle to remove bicarbonate alkalinity. The exchange is somewhat unfavorable and results in modest capacity and substantial alkalinity leakage. When the dealkalizer follows a water softener and when low hardness salt is used, a small amount of sodium hydroxide can be mixed in with the salt to obtain higher operating capacity and lower leakage.