Typical Physical & Chemical Characteristics

Polymer Matrix Structure

Macroporous Polystyrene with DVB

Functional Group

R-N-(CH₃)₂⁺

Ionic Form, as shipped

Free Base

Physical Form And Appearance

Spherical Beads

Sphericity

95% min.

Screen Size Range
--- U.S. Standard Screen

16-50 mesh, wet

Particle Size Range

+1.2 mm < 5%, -0.3 mm < 1%

Uniformity Coefficient

1.6 max.

Water Retention, Free Base

50-60%

Swelling Free Base → Cl^- 

20-30%

Shipping Weight, Free Base 

650-720 g/l (42 lbs/cu.ft, approx.)

Total Exchange Capacity, Free Base

1.45 eq/l min.

pH Range

0-14

Suggested Operating Conditions

Maximum Temperature Free Base

80ºC (176ºF) max.

Minimum Bed Depth

0.6 m (24 inches)

Backwash Expansion

50-75% bed expansion

Regeneration
Regenerant Concentration
Flow Rate
Contact Time

2-6% NaOH
2 to 8 BV/h (0.25 to 1.0 gpm/cu.ft)
At least 60 Minutes

Displacement Rinse Rate

Same as Regenerant Flow Rate

Displacement Rinse Volume

10-15 gallons/cu.ft

Fast Rinse Rate

Same as Service Flow Rate

Fast Rinse Volume

35-60 gallons/cu.ft

Service Flow Rate

16-32 BV/h (2.0- 4.0 gpm/cu.ft)

Hydraulic Properties

Pressure Drop: The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.

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 above shows the expansion characteristics of PA300.